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<?xml version="1.0" standalone="no" encoding="windows-1252"?> |
<!-- Field: Doc-Info; Name: Generator; Value: GoFiler Complete; Version: 5.15c --> |
<!-- Field: Doc-Info; Name: VendorURI; Value: https://www.novaworks.com --> |
<!-- Field: Doc-Info; Name: Status; Value: 0x00000000 --> |
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| <link:roleRef roleURI="http://greystonelogistics.com/role/BalanceSheets" xlink:href="glgi-20220531.xsd#BalanceSheets" xlink:type="simple"/> |
| <link:roleRef roleURI="http://greystonelogistics.com/role/BalanceSheetsParenthetical" xlink:href="glgi-20220531.xsd#BalanceSheetsParenthetical" xlink:type="simple"/> |
| <link:roleRef roleURI="http://greystonelogistics.com/role/StatementsOfIncome" xlink:href="glgi-20220531.xsd#StatementsOfIncome" xlink:type="simple"/> |
| <link:roleRef roleURI="http://greystonelogistics.com/role/StatementsOfChangesInequity" xlink:href="glgi-20220531.xsd#StatementsOfChangesInequity" xlink:type="simple"/> |
| <link:roleRef roleURI="http://greystonelogistics.com/role/StatementsOfChangesInequityParenthetical" xlink:href="glgi-20220531.xsd#StatementsOfChangesInequityParenthetical" xlink:type="simple"/> |
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| <link:roleRef roleURI="http://greystonelogistics.com/role/PropertyPlantAndEquipment" xlink:href="glgi-20220531.xsd#PropertyPlantAndEquipment" xlink:type="simple"/> |
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| <link:roleRef roleURI="http://greystonelogistics.com/role/RetirementPlan" xlink:href="glgi-20220531.xsd#RetirementPlan" xlink:type="simple"/> |
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| <link:roleRef roleURI="http://greystonelogistics.com/role/PropertyPlantAndEquipmentTables" xlink:href="glgi-20220531.xsd#PropertyPlantAndEquipmentTables" xlink:type="simple"/> |
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| <link:roleRef roleURI="http://greystonelogistics.com/role/ScheduleOfPropertyPlantAndEquipmentDetails" xlink:href="glgi-20220531.xsd#ScheduleOfPropertyPlantAndEquipmentDetails" xlink:type="simple"/> |
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| <link:roleRef roleURI="http://greystonelogistics.com/role/ScheduleOfOperatingLeasesDetails" xlink:href="glgi-20220531.xsd#ScheduleOfOperatingLeasesDetails" xlink:type="simple"/> |
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| <link:roleRef roleURI="http://greystonelogistics.com/role/ScheduleOfFutureMinimumLeasePaymentsDetails" xlink:href="glgi-20220531.xsd#ScheduleOfFutureMinimumLeasePaymentsDetails" xlink:type="simple"/> |
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| <link:roleRef roleURI="http://greystonelogistics.com/role/ScheduleOfSaleOfRevenuesForCustomerCategoriesDetails" xlink:href="glgi-20220531.xsd#ScheduleOfSaleOfRevenuesForCustomerCategoriesDetails" xlink:type="simple"/> |
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| <link:roleRef roleURI="http://greystonelogistics.com/role/RelatedPartyTransactionsDetailsNarrative" xlink:href="glgi-20220531.xsd#RelatedPartyTransactionsDetailsNarrative" xlink:type="simple"/> |
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| <link:roleRef roleURI="http://greystonelogistics.com/role/SummaryOfNetChangeInDeferredTaxesDetails" xlink:href="glgi-20220531.xsd#SummaryOfNetChangeInDeferredTaxesDetails" xlink:type="simple"/> |
| <link:roleRef roleURI="http://greystonelogistics.com/role/SummaryOfProvisionForIncomeTaxesDetails" xlink:href="glgi-20220531.xsd#SummaryOfProvisionForIncomeTaxesDetails" xlink:type="simple"/> |
| <link:roleRef roleURI="http://greystonelogistics.com/role/SummaryOfProvisionForIncomeTaxesForFederalStatutoryRateDetails" xlink:href="glgi-20220531.xsd#SummaryOfProvisionForIncomeTaxesForFederalStatutoryRateDetails" xlink:type="simple"/> |
| <link:roleRef roleURI="http://greystonelogistics.com/role/SummaryOfNetOperatingLossForFederalIncomeTaxDetails" xlink:href="glgi-20220531.xsd#SummaryOfNetOperatingLossForFederalIncomeTaxDetails" xlink:type="simple"/> |
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| <link:roleRef roleURI="http://greystonelogistics.com/role/StockholdersEquityDetailsNarrative" xlink:href="glgi-20220531.xsd#StockholdersEquityDetailsNarrative" xlink:type="simple"/> |
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| <link:roleRef roleURI="http://greystonelogistics.com/role/ScheduleOfSupplementalInformationOfCashFlowsDetails" xlink:href="glgi-20220531.xsd#ScheduleOfSupplementalInformationOfCashFlowsDetails" xlink:type="simple"/> |
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| <link:roleRef roleURI="http://greystonelogistics.com/role/VariableInterestEntitiesVieDetailsNarrative" xlink:href="glgi-20220531.xsd#VariableInterestEntitiesVieDetailsNarrative" xlink:type="simple"/> |
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| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="loc_us-gaapScheduleOfPropertyPlantAndEquipmentTable"/> |
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| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="loc_us-gaapPropertyPlantAndEquipmentLineItems"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfPropertyPlantAndEquipmentTable" xlink:to="loc_us-gaapPropertyPlantAndEquipmentLineItems" order="200"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaapPropertyPlantAndEquipmentByTypeAxis"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfPropertyPlantAndEquipmentTable" xlink:to="loc_us-gaapPropertyPlantAndEquipmentByTypeAxis" order="10"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaapPropertyPlantAndEquipmentTypeDomain"/> |
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| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_MachineryAndEquipmentMember" xlink:label="loc_us-gaapMachineryAndEquipmentMember"/> |
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| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfPropertyPlantAndEquipmentTable" xlink:to="loc_srtRangeAxis" order="20"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_RangeMember" xlink:label="loc_srtRangeMember"/> |
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| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_MinimumMember" xlink:label="loc_srtMinimumMember"/> |
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| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_MaximumMember" xlink:label="loc_srtMaximumMember"/> |
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| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife" xlink:label="loc_us-gaapPropertyPlantAndEquipmentUsefulLife"/> |
| | <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapPropertyPlantAndEquipmentLineItems" xlink:to="loc_us-gaapPropertyPlantAndEquipmentUsefulLife" xlink:type="arc"/> |
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| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaapAccountingPoliciesAbstract"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:label="loc_us-gaapNetIncomeLossAvailableToCommonStockholdersBasic"/> |
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| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="loc_us-gaapWeightedAverageNumberOfSharesOutstandingBasic"/> |
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| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_EarningsPerShareBasic" xlink:label="loc_us-gaapEarningsPerShareBasic"/> |
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| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_NetIncomeLossAvailableToCommonStockholderBasic" xlink:label="loc_GLGINetIncomeLossAvailableToCommonStockholderBasic"/> |
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| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_PreferredStockDividendsDueToAssumedConversion" xlink:label="loc_GLGIPreferredStockDividendsDueToAssumedConversion"/> |
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| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_NetIncomeAllocatedToCommonStockholders" xlink:label="loc_GLGINetIncomeAllocatedToCommonStockholders"/> |
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| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants" xlink:label="loc_us-gaapIncrementalCommonSharesAttributableToCallOptionsAndWarrants"/> |
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| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_EarningsPerShareDiluted" xlink:label="loc_us-gaapEarningsPerShareDiluted"/> |
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| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_InventoryDisclosureAbstract" xlink:label="loc_us-gaapInventoryDisclosureAbstract"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_InventoryRawMaterials" xlink:label="loc_us-gaapInventoryRawMaterials"/> |
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| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_InventoryFinishedGoods" xlink:label="loc_us-gaapInventoryFinishedGoods"/> |
| | <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapInventoryDisclosureAbstract" xlink:to="loc_us-gaapInventoryFinishedGoods" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_InventoryNet" xlink:label="loc_us-gaapInventoryNet"/> |
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| | </link:presentationLink> |
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| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="loc_us-gaapScheduleOfPropertyPlantAndEquipmentTable"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapPropertyPlantAndEquipmentAbstract" xlink:to="loc_us-gaapScheduleOfPropertyPlantAndEquipmentTable" order="100"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="loc_us-gaapPropertyPlantAndEquipmentLineItems"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfPropertyPlantAndEquipmentTable" xlink:to="loc_us-gaapPropertyPlantAndEquipmentLineItems" order="200"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaapPropertyPlantAndEquipmentByTypeAxis"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfPropertyPlantAndEquipmentTable" xlink:to="loc_us-gaapPropertyPlantAndEquipmentByTypeAxis" order="10"/> |
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| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_MachineryAndEquipmentMember" xlink:label="loc_us-gaapMachineryAndEquipmentMember"/> |
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| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LeaseholdImprovementsMember" xlink:label="loc_us-gaapLeaseholdImprovementsMember"/> |
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| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FurnitureAndFixturesMember" xlink:label="loc_us-gaapFurnitureAndFixturesMember"/> |
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| | <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtConsolidatedEntitiesDomain" xlink:to="loc_us-gaapVariableInterestEntityPrimaryBeneficiaryMember" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_MachineryAndEquipmentNet" xlink:label="loc_GLGIMachineryAndEquipmentNet"/> |
| | <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_GLGIMachineryAndEquipmentNet" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="loc_us-gaapPropertyPlantAndEquipmentGross"/> |
| | <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapPropertyPlantAndEquipmentGross" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:label="loc_us-gaapDepreciationDepletionAndAmortization"/> |
| | <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems" xlink:to="loc_us-gaapDepreciationDepletionAndAmortization" xlink:type="arc"/> |
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| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ScheduleOfDebtInstrumentsTextBlock" xlink:label="loc_us-gaapScheduleOfDebtInstrumentsTextBlock"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentTable" xlink:label="loc_us-gaapDebtInstrumentTable"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfDebtInstrumentsTextBlock" xlink:to="loc_us-gaapDebtInstrumentTable" order="100"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="loc_us-gaapDebtInstrumentLineItems"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentTable" xlink:to="loc_us-gaapDebtInstrumentLineItems" order="200"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentAxis" xlink:label="loc_us-gaapDebtInstrumentAxis"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentTable" xlink:to="loc_us-gaapDebtInstrumentAxis" order="10"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="loc_us-gaapDebtInstrumentNameDomain"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentAxis" xlink:to="loc_us-gaapDebtInstrumentNameDomain" order="0"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_NotesPayableOneMember" xlink:label="loc_GLGINotesPayableOneMember"/> |
| | <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentNameDomain" xlink:to="loc_GLGINotesPayableOneMember" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_NotesPayableTwoMember" xlink:label="loc_GLGINotesPayableTwoMember"/> |
| | <link:presentationArc order="70" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentNameDomain" xlink:to="loc_GLGINotesPayableTwoMember" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_NotesPayableThreeMember" xlink:label="loc_GLGINotesPayableThreeMember"/> |
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| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_NotesPayableFourMember" xlink:label="loc_GLGINotesPayableFourMember"/> |
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| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_NotesPayableFiveMember" xlink:label="loc_GLGINotesPayableFiveMember"/> |
| | <link:presentationArc order="250" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentNameDomain" xlink:to="loc_GLGINotesPayableFiveMember" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_NotesPayableSixMember" xlink:label="loc_GLGINotesPayableSixMember"/> |
| | <link:presentationArc order="310" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentNameDomain" xlink:to="loc_GLGINotesPayableSixMember" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_NotesPayableSevenMember" xlink:label="loc_GLGINotesPayableSevenMember"/> |
| | <link:presentationArc order="370" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentNameDomain" xlink:to="loc_GLGINotesPayableSevenMember" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_NotesPayableEightMember" xlink:label="loc_GLGINotesPayableEightMember"/> |
| | <link:presentationArc order="430" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentNameDomain" xlink:to="loc_GLGINotesPayableEightMember" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_NotesPayableNineMember" xlink:label="loc_GLGINotesPayableNineMember"/> |
| | <link:presentationArc order="470" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentNameDomain" xlink:to="loc_GLGINotesPayableNineMember" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_NotesPayableTenMember" xlink:label="loc_GLGINotesPayableTenMember"/> |
| | <link:presentationArc order="510" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentNameDomain" xlink:to="loc_GLGINotesPayableTenMember" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_NotesPayableElevenMember" xlink:label="loc_GLGINotesPayableElevenMember"/> |
| | <link:presentationArc order="550" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentNameDomain" xlink:to="loc_GLGINotesPayableElevenMember" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_NotesPayableTwelveMember" xlink:label="loc_GLGINotesPayableTwelveMember"/> |
| | <link:presentationArc order="590" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentNameDomain" xlink:to="loc_GLGINotesPayableTwelveMember" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_OtherNotePayableMember" xlink:label="loc_GLGIOtherNotePayableMember"/> |
| | <link:presentationArc order="630" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentNameDomain" xlink:to="loc_GLGIOtherNotePayableMember" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_FaceValueOfLongtermDebtMember" xlink:label="loc_GLGIFaceValueOfLongtermDebtMember"/> |
| | <link:presentationArc order="650" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentNameDomain" xlink:to="loc_GLGIFaceValueOfLongtermDebtMember" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_RangeAxis" xlink:label="loc_srtRangeAxis"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentTable" xlink:to="loc_srtRangeAxis" order="20"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_RangeMember" xlink:label="loc_srtRangeMember"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtRangeAxis" xlink:to="loc_srtRangeMember" order="0"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_MaximumMember" xlink:label="loc_srtMaximumMember"/> |
| | <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtRangeMember" xlink:to="loc_srtMaximumMember" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentInterestRateEffectivePercentage" xlink:label="loc_us-gaapDebtInstrumentInterestRateEffectivePercentage"/> |
| | <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentLineItems" xlink:to="loc_us-gaapDebtInstrumentInterestRateEffectivePercentage" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentMaturityDate" xlink:label="loc_us-gaapDebtInstrumentMaturityDate"/> |
| | <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentLineItems" xlink:to="loc_us-gaapDebtInstrumentMaturityDate" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentCarryingAmount" xlink:label="loc_us-gaapDebtInstrumentCarryingAmount"/> |
| | <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentLineItems" xlink:to="loc_us-gaapDebtInstrumentCarryingAmount" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentPeriodicPayment" xlink:label="loc_us-gaapDebtInstrumentPeriodicPayment"/> |
| | <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentLineItems" xlink:to="loc_us-gaapDebtInstrumentPeriodicPayment" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DeferredFinanceCostsNet" xlink:label="loc_us-gaapDeferredFinanceCostsNet"/> |
| | <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentLineItems" xlink:to="loc_us-gaapDeferredFinanceCostsNet" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_TotalDebtIssuanceCostsNetOfAmortization" xlink:label="loc_GLGITotalDebtIssuanceCostsNetOfAmortization"/> |
| | <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentLineItems" xlink:to="loc_GLGITotalDebtIssuanceCostsNetOfAmortization" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LongTermDebtCurrent" xlink:label="loc_us-gaapLongTermDebtCurrent"/> |
| | <link:presentationArc order="60" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentLineItems" xlink:to="loc_us-gaapLongTermDebtCurrent" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LongTermDebtNoncurrent" xlink:label="loc_us-gaapLongTermDebtNoncurrent"/> |
| | <link:presentationArc order="70" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentLineItems" xlink:to="loc_us-gaapLongTermDebtNoncurrent" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | </link:presentationLink> |
| <link:presentationLink xlink:type="extended" xlink:role="http://greystonelogistics.com/role/Long-termDebtDetailsNarrative" xlink:title="00000040 - Disclosure - LONG-TERM DEBT (Details Narrative)"> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="loc_us-gaapDebtDisclosureAbstract"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentTable" xlink:label="loc_us-gaapDebtInstrumentTable"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtDisclosureAbstract" xlink:to="loc_us-gaapDebtInstrumentTable" order="100"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="loc_us-gaapDebtInstrumentLineItems"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentTable" xlink:to="loc_us-gaapDebtInstrumentLineItems" order="200"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_VariableRateAxis" xlink:label="loc_us-gaapVariableRateAxis"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentTable" xlink:to="loc_us-gaapVariableRateAxis" order="10"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_VariableRateDomain" xlink:label="loc_us-gaapVariableRateDomain"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapVariableRateAxis" xlink:to="loc_us-gaapVariableRateDomain" order="0"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PrimeRateMember" xlink:label="loc_us-gaapPrimeRateMember"/> |
| | <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapVariableRateDomain" xlink:to="loc_us-gaapPrimeRateMember" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="loc_us-gaapSubsequentEventTypeAxis"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentTable" xlink:to="loc_us-gaapSubsequentEventTypeAxis" order="20"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaapSubsequentEventTypeDomain"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSubsequentEventTypeAxis" xlink:to="loc_us-gaapSubsequentEventTypeDomain" order="0"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SubsequentEventMember" xlink:label="loc_us-gaapSubsequentEventMember"/> |
| | <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSubsequentEventTypeDomain" xlink:to="loc_us-gaapSubsequentEventMember" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_CounterpartyNameAxis" xlink:label="loc_srtCounterpartyNameAxis"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentTable" xlink:to="loc_srtCounterpartyNameAxis" order="30"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_RepurchaseAgreementCounterpartyNameDomain" xlink:label="loc_srtRepurchaseAgreementCounterpartyNameDomain"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtCounterpartyNameAxis" xlink:to="loc_srtRepurchaseAgreementCounterpartyNameDomain" order="0"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_IBCLoanAgreementMember" xlink:label="loc_GLGIIBCLoanAgreementMember"/> |
| | <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtRepurchaseAgreementCounterpartyNameDomain" xlink:to="loc_GLGIIBCLoanAgreementMember" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_RevolvingLoanMember" xlink:label="loc_GLGIRevolvingLoanMember"/> |
| | <link:presentationArc order="90" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtRepurchaseAgreementCounterpartyNameDomain" xlink:to="loc_GLGIRevolvingLoanMember" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_LoanAgreementBetweenGREAndIBCMember" xlink:label="loc_GLGILoanAgreementBetweenGREAndIBCMember"/> |
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| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentAxis" xlink:label="loc_us-gaapDebtInstrumentAxis"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentTable" xlink:to="loc_us-gaapDebtInstrumentAxis" order="40"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="loc_us-gaapDebtInstrumentNameDomain"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentAxis" xlink:to="loc_us-gaapDebtInstrumentNameDomain" order="0"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_RevolvingLoanMember" xlink:label="loc_GLGIRevolvingLoanMember_2"/> |
| | <link:presentationArc order="60" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentNameDomain" xlink:to="loc_GLGIRevolvingLoanMember_2" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_GuarantyMember" xlink:label="loc_GLGIGuarantyMember"/> |
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| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_MortgageLoanMember" xlink:label="loc_GLGIMortgageLoanMember"/> |
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| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentTable" xlink:to="loc_us-gaapTypeOfArrangementAxis" order="50"/> |
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| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapTypeOfArrangementAxis" xlink:to="loc_us-gaapArrangementsAndNonarrangementTransactionsMember" order="0"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_RestatedLoanAgreementMember" xlink:label="loc_GLGIRestatedLoanAgreementMember"/> |
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| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentTable" xlink:to="loc_us-gaapRelatedPartyTransactionAxis" order="60"/> |
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| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapRelatedPartyTransactionAxis" xlink:to="loc_us-gaapRelatedPartyTransactionDomain" order="0"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_RobertBRoseneJrMember" xlink:label="loc_GLGIRobertBRoseneJrMember"/> |
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| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_TitleOfIndividualAxis" xlink:label="loc_srtTitleOfIndividualAxis"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentTable" xlink:to="loc_srtTitleOfIndividualAxis" order="70"/> |
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| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AmortizationOfFinancingCosts" xlink:label="loc_us-gaapAmortizationOfFinancingCosts"/> |
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| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentPeriodicPayment" xlink:label="loc_us-gaapDebtInstrumentPeriodicPayment"/> |
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| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentFaceAmount" xlink:label="loc_us-gaapDebtInstrumentFaceAmount"/> |
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| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity" xlink:label="loc_us-gaapLineOfCreditFacilityMaximumBorrowingCapacity"/> |
| | <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentLineItems" xlink:to="loc_us-gaapLineOfCreditFacilityMaximumBorrowingCapacity" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentMaturityDate" xlink:label="loc_us-gaapDebtInstrumentMaturityDate"/> |
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| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_CapitalLeasedAssetGross" xlink:label="loc_GLGICapitalLeasedAssetGross"/> |
| | <link:presentationArc order="60" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentLineItems" xlink:to="loc_GLGICapitalLeasedAssetGross" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DividendsPreferredStock" xlink:label="loc_us-gaapDividendsPreferredStock"/> |
| | <link:presentationArc order="70" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentLineItems" xlink:to="loc_us-gaapDividendsPreferredStock" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_GuaranteesCombinedAmount" xlink:label="loc_GLGIGuaranteesCombinedAmount"/> |
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| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherLongTermDebt" xlink:label="loc_us-gaapOtherLongTermDebt"/> |
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| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LongTermDebt" xlink:label="loc_us-gaapLongTermDebt"/> |
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| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NotesPayable" xlink:label="loc_us-gaapNotesPayable"/> |
| | <link:presentationArc order="110" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentLineItems" xlink:to="loc_us-gaapNotesPayable" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ProceedsFromOtherDebt" xlink:label="loc_us-gaapProceedsFromOtherDebt"/> |
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| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LoansPayableCurrent" xlink:label="loc_us-gaapLoansPayableCurrent"/> |
| | <link:presentationArc order="130" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtInstrumentLineItems" xlink:to="loc_us-gaapLoansPayableCurrent" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NotesAndLoansPayableCurrent" xlink:label="loc_us-gaapNotesAndLoansPayableCurrent"/> |
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| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_RevolvingLoanBorrowed" xlink:label="loc_GLGIRevolvingLoanBorrowed"/> |
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| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_MortgageLoansOnRealEstateWritedownOrReserveAmount1" xlink:label="loc_us-gaapMortgageLoansOnRealEstateWritedownOrReserveAmount1"/> |
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| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_ExtendedMaturityDate" xlink:label="loc_GLGIExtendedMaturityDate"/> |
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| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths" xlink:label="loc_us-gaapLongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths"/> |
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| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_DisclosureLeasesAbstract" xlink:label="loc_GLGIDisclosureLeasesAbstract"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiability" xlink:label="loc_us-gaapFinanceLeaseLiability"/> |
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| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiabilityCurrent" xlink:label="loc_us-gaapFinanceLeaseLiabilityCurrent"/> |
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| | </link:presentationLink> |
| <link:presentationLink xlink:type="extended" xlink:role="http://greystonelogistics.com/role/SummaryOfLeaseActivityDetails" xlink:title="00000044 - Disclosure - SUMMARY OF LEASE ACTIVITY (Details)"> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_DisclosureLeasesAbstract" xlink:label="loc_GLGIDisclosureLeasesAbstract"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseRightOfUseAssetAmortization" xlink:label="loc_us-gaapFinanceLeaseRightOfUseAssetAmortization"/> |
| | <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_GLGIDisclosureLeasesAbstract" xlink:to="loc_us-gaapFinanceLeaseRightOfUseAssetAmortization" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseInterestExpense" xlink:label="loc_us-gaapFinanceLeaseInterestExpense"/> |
| | <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_GLGIDisclosureLeasesAbstract" xlink:to="loc_us-gaapFinanceLeaseInterestExpense" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingLeaseExpense" xlink:label="loc_us-gaapOperatingLeaseExpense"/> |
| | <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_GLGIDisclosureLeasesAbstract" xlink:to="loc_us-gaapOperatingLeaseExpense" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShortTermLeaseCost" xlink:label="loc_us-gaapShortTermLeaseCost"/> |
| | <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_GLGIDisclosureLeasesAbstract" xlink:to="loc_us-gaapShortTermLeaseCost" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LeaseCost" xlink:label="loc_us-gaapLeaseCost"/> |
| | <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_GLGIDisclosureLeasesAbstract" xlink:to="loc_us-gaapLeaseCost" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseInterestPaymentOnLiability" xlink:label="loc_us-gaapFinanceLeaseInterestPaymentOnLiability"/> |
| | <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_GLGIDisclosureLeasesAbstract" xlink:to="loc_us-gaapFinanceLeaseInterestPaymentOnLiability" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeasePrincipalPayments" xlink:label="loc_us-gaapFinanceLeasePrincipalPayments"/> |
| | <link:presentationArc order="60" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_GLGIDisclosureLeasesAbstract" xlink:to="loc_us-gaapFinanceLeasePrincipalPayments" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingLeasePayments" xlink:label="loc_us-gaapOperatingLeasePayments"/> |
| | <link:presentationArc order="70" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_GLGIDisclosureLeasesAbstract" xlink:to="loc_us-gaapOperatingLeasePayments" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_FinanceLeaseLiabilitiesRightOfUseAsset" xlink:label="loc_GLGIFinanceLeaseLiabilitiesRightOfUseAsset"/> |
| | <link:presentationArc order="80" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_GLGIDisclosureLeasesAbstract" xlink:to="loc_GLGIFinanceLeaseLiabilitiesRightOfUseAsset" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1" xlink:label="loc_us-gaapFinanceLeaseWeightedAverageRemainingLeaseTerm1"/> |
| | <link:presentationArc order="90" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_GLGIDisclosureLeasesAbstract" xlink:to="loc_us-gaapFinanceLeaseWeightedAverageRemainingLeaseTerm1" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1" xlink:label="loc_us-gaapOperatingLeaseWeightedAverageRemainingLeaseTerm1"/> |
| | <link:presentationArc order="100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_GLGIDisclosureLeasesAbstract" xlink:to="loc_us-gaapOperatingLeaseWeightedAverageRemainingLeaseTerm1" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseWeightedAverageDiscountRatePercent" xlink:label="loc_us-gaapFinanceLeaseWeightedAverageDiscountRatePercent"/> |
| | <link:presentationArc order="110" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_GLGIDisclosureLeasesAbstract" xlink:to="loc_us-gaapFinanceLeaseWeightedAverageDiscountRatePercent" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent" xlink:label="loc_us-gaapOperatingLeaseWeightedAverageDiscountRatePercent"/> |
| | <link:presentationArc order="120" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_GLGIDisclosureLeasesAbstract" xlink:to="loc_us-gaapOperatingLeaseWeightedAverageDiscountRatePercent" xlink:type="arc"/> |
| | </link:presentationLink> |
| <link:presentationLink xlink:type="extended" xlink:role="http://greystonelogistics.com/role/ScheduleOfFutureMinimumLeasePaymentsDetails" xlink:title="00000045 - Disclosure - SCHEDULE OF FUTURE MINIMUM LEASE PAYMENTS (Details)"> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_DisclosureLeasesAbstract" xlink:label="loc_GLGIDisclosureLeasesAbstract"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths" xlink:label="loc_us-gaapLesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths"/> |
| | <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_GLGIDisclosureLeasesAbstract" xlink:to="loc_us-gaapLesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths" xlink:label="loc_us-gaapFinanceLeaseLiabilityPaymentsDueNextTwelveMonths"/> |
| | <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_GLGIDisclosureLeasesAbstract" xlink:to="loc_us-gaapFinanceLeaseLiabilityPaymentsDueNextTwelveMonths" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo" xlink:label="loc_us-gaapLesseeOperatingLeaseLiabilityPaymentsDueYearTwo"/> |
| | <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_GLGIDisclosureLeasesAbstract" xlink:to="loc_us-gaapLesseeOperatingLeaseLiabilityPaymentsDueYearTwo" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo" xlink:label="loc_us-gaapFinanceLeaseLiabilityPaymentsDueYearTwo"/> |
| | <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_GLGIDisclosureLeasesAbstract" xlink:to="loc_us-gaapFinanceLeaseLiabilityPaymentsDueYearTwo" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree" xlink:label="loc_us-gaapLesseeOperatingLeaseLiabilityPaymentsDueYearThree"/> |
| | <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_GLGIDisclosureLeasesAbstract" xlink:to="loc_us-gaapLesseeOperatingLeaseLiabilityPaymentsDueYearThree" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree" xlink:label="loc_us-gaapFinanceLeaseLiabilityPaymentsDueYearThree"/> |
| | <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_GLGIDisclosureLeasesAbstract" xlink:to="loc_us-gaapFinanceLeaseLiabilityPaymentsDueYearThree" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour" xlink:label="loc_us-gaapLesseeOperatingLeaseLiabilityPaymentsDueYearFour"/> |
| | <link:presentationArc order="60" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_GLGIDisclosureLeasesAbstract" xlink:to="loc_us-gaapLesseeOperatingLeaseLiabilityPaymentsDueYearFour" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour" xlink:label="loc_us-gaapFinanceLeaseLiabilityPaymentsDueYearFour"/> |
| | <link:presentationArc order="70" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_GLGIDisclosureLeasesAbstract" xlink:to="loc_us-gaapFinanceLeaseLiabilityPaymentsDueYearFour" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:label="loc_us-gaapLesseeOperatingLeaseLiabilityPaymentsDue"/> |
| | <link:presentationArc order="80" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_GLGIDisclosureLeasesAbstract" xlink:to="loc_us-gaapLesseeOperatingLeaseLiabilityPaymentsDue" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDue" xlink:label="loc_us-gaapFinanceLeaseLiabilityPaymentsDue"/> |
| | <link:presentationArc order="90" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_GLGIDisclosureLeasesAbstract" xlink:to="loc_us-gaapFinanceLeaseLiabilityPaymentsDue" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_LesseeOperatingLeaseLiabilityImputedInterest" xlink:label="loc_GLGILesseeOperatingLeaseLiabilityImputedInterest"/> |
| | <link:presentationArc order="100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_GLGIDisclosureLeasesAbstract" xlink:to="loc_GLGILesseeOperatingLeaseLiabilityImputedInterest" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_FinanceLeaseLiabilityImputedInterest" xlink:label="loc_GLGIFinanceLeaseLiabilityImputedInterest"/> |
| | <link:presentationArc order="110" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_GLGIDisclosureLeasesAbstract" xlink:to="loc_GLGIFinanceLeaseLiabilityImputedInterest" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingLeaseLiability" xlink:label="loc_us-gaapOperatingLeaseLiability"/> |
| | <link:presentationArc order="120" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_GLGIDisclosureLeasesAbstract" xlink:to="loc_us-gaapOperatingLeaseLiability" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_OperatingLeaseLiabilityNet" xlink:label="loc_GLGIOperatingLeaseLiabilityNet"/> |
| | <link:presentationArc order="130" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_GLGIDisclosureLeasesAbstract" xlink:to="loc_GLGIOperatingLeaseLiabilityNet" xlink:type="arc"/> |
| | </link:presentationLink> |
| <link:presentationLink xlink:type="extended" xlink:role="http://greystonelogistics.com/role/LeasesDetailsNarrative" xlink:title="00000046 - Disclosure - LEASES (Details Narrative)"> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_DisclosureLeasesAbstract" xlink:label="loc_GLGIDisclosureLeasesAbstract"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeLeaseDescriptionTable" xlink:label="loc_us-gaapLesseeLeaseDescriptionTable"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_GLGIDisclosureLeasesAbstract" xlink:to="loc_us-gaapLesseeLeaseDescriptionTable" order="100"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeLeaseDescriptionLineItems" xlink:label="loc_us-gaapLesseeLeaseDescriptionLineItems"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLesseeLeaseDescriptionTable" xlink:to="loc_us-gaapLesseeLeaseDescriptionLineItems" order="200"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LeaseContractualTermAxis" xlink:label="loc_us-gaapLeaseContractualTermAxis"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLesseeLeaseDescriptionTable" xlink:to="loc_us-gaapLeaseContractualTermAxis" order="10"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LeaseContractualTermDomain" xlink:label="loc_us-gaapLeaseContractualTermDomain"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLeaseContractualTermAxis" xlink:to="loc_us-gaapLeaseContractualTermDomain" order="0"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_ThreeLeaseAgreementsWithFiveYearTermsMember" xlink:label="loc_GLGIThreeLeaseAgreementsWithFiveYearTermsMember"/> |
| | <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLeaseContractualTermDomain" xlink:to="loc_GLGIThreeLeaseAgreementsWithFiveYearTermsMember" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_TypeOfArrangementAxis" xlink:label="loc_us-gaapTypeOfArrangementAxis"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLesseeLeaseDescriptionTable" xlink:to="loc_us-gaapTypeOfArrangementAxis" order="20"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ArrangementsAndNonarrangementTransactionsMember" xlink:label="loc_us-gaapArrangementsAndNonarrangementTransactionsMember"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapTypeOfArrangementAxis" xlink:to="loc_us-gaapArrangementsAndNonarrangementTransactionsMember" order="0"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_SaleAndLeasebackAgreementMember" xlink:label="loc_GLGISaleAndLeasebackAgreementMember"/> |
| | <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapArrangementsAndNonarrangementTransactionsMember" xlink:to="loc_GLGISaleAndLeasebackAgreementMember" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CollateralAxis" xlink:label="loc_us-gaapCollateralAxis"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLesseeLeaseDescriptionTable" xlink:to="loc_us-gaapCollateralAxis" order="30"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CollateralDomain" xlink:label="loc_us-gaapCollateralDomain"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapCollateralAxis" xlink:to="loc_us-gaapCollateralDomain" order="0"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_YorktownProductionEquipmentMember" xlink:label="loc_GLGIYorktownProductionEquipmentMember"/> |
| | <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapCollateralDomain" xlink:to="loc_GLGIYorktownProductionEquipmentMember" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_StatementScenarioAxis" xlink:label="loc_srtStatementScenarioAxis"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLesseeLeaseDescriptionTable" xlink:to="loc_srtStatementScenarioAxis" order="40"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_ScenarioUnspecifiedDomain" xlink:label="loc_srtScenarioUnspecifiedDomain"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtStatementScenarioAxis" xlink:to="loc_srtScenarioUnspecifiedDomain" order="0"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_InitialThirtyNineMonthsMember" xlink:label="loc_GLGIInitialThirtyNineMonthsMember"/> |
| | <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtScenarioUnspecifiedDomain" xlink:to="loc_GLGIInitialThirtyNineMonthsMember" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_RemainingTwelveMonthsMember" xlink:label="loc_GLGIRemainingTwelveMonthsMember"/> |
| | <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtScenarioUnspecifiedDomain" xlink:to="loc_GLGIRemainingTwelveMonthsMember" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaapPropertyPlantAndEquipmentByTypeAxis"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLesseeLeaseDescriptionTable" xlink:to="loc_us-gaapPropertyPlantAndEquipmentByTypeAxis" order="50"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaapPropertyPlantAndEquipmentTypeDomain"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapPropertyPlantAndEquipmentByTypeAxis" xlink:to="loc_us-gaapPropertyPlantAndEquipmentTypeDomain" order="0"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_EquipmentOneMember" xlink:label="loc_GLGIEquipmentOneMember"/> |
| | <link:presentationArc order="90" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapPropertyPlantAndEquipmentTypeDomain" xlink:to="loc_GLGIEquipmentOneMember" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_EquipmentTwoMember" xlink:label="loc_GLGIEquipmentTwoMember"/> |
| | <link:presentationArc order="100" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapPropertyPlantAndEquipmentTypeDomain" xlink:to="loc_GLGIEquipmentTwoMember" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_LeaseInterestRate" xlink:label="loc_GLGILeaseInterestRate"/> |
| | <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLesseeLeaseDescriptionLineItems" xlink:to="loc_GLGILeaseInterestRate" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LeaseCost" xlink:label="loc_us-gaapLeaseCost"/> |
| | <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLesseeLeaseDescriptionLineItems" xlink:to="loc_us-gaapLeaseCost" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_LeasePaymentPerInvoiceRate" xlink:label="loc_GLGILeasePaymentPerInvoiceRate"/> |
| | <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLesseeLeaseDescriptionLineItems" xlink:to="loc_GLGILeasePaymentPerInvoiceRate" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PaymentsForRent" xlink:label="loc_us-gaapPaymentsForRent"/> |
| | <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLesseeLeaseDescriptionLineItems" xlink:to="loc_us-gaapPaymentsForRent" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PaymentsToAcquireProductiveAssets" xlink:label="loc_us-gaapPaymentsToAcquireProductiveAssets"/> |
| | <link:presentationArc order="40" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLesseeLeaseDescriptionLineItems" xlink:to="loc_us-gaapPaymentsToAcquireProductiveAssets" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LandUnderPurchaseOptionsRecorded" xlink:label="loc_us-gaapLandUnderPurchaseOptionsRecorded"/> |
| | <link:presentationArc order="50" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLesseeLeaseDescriptionLineItems" xlink:to="loc_us-gaapLandUnderPurchaseOptionsRecorded" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseRightOfUseAssetAmortization" xlink:label="loc_us-gaapFinanceLeaseRightOfUseAssetAmortization"/> |
| | <link:presentationArc order="60" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLesseeLeaseDescriptionLineItems" xlink:to="loc_us-gaapFinanceLeaseRightOfUseAssetAmortization" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LessorOperatingLeaseTermOfContract" xlink:label="loc_us-gaapLessorOperatingLeaseTermOfContract"/> |
| | <link:presentationArc order="70" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLesseeLeaseDescriptionLineItems" xlink:to="loc_us-gaapLessorOperatingLeaseTermOfContract" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseDiscountRate" xlink:label="loc_us-gaapLesseeOperatingLeaseDiscountRate"/> |
| | <link:presentationArc order="80" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLesseeLeaseDescriptionLineItems" xlink:to="loc_us-gaapLesseeOperatingLeaseDiscountRate" xlink:type="arc"/> |
| | </link:presentationLink> |
| <link:presentationLink xlink:type="extended" xlink:role="http://greystonelogistics.com/role/ScheduleOfSaleOfRevenuesForCustomerCategoriesDetails" xlink:title="00000047 - Disclosure - SCHEDULE OF SALE OF REVENUES FOR CUSTOMER CATEGORIES (Details)"> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RevenueFromContractWithCustomerAbstract" xlink:label="loc_us-gaapRevenueFromContractWithCustomerAbstract"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DisaggregationOfRevenueTable" xlink:label="loc_us-gaapDisaggregationOfRevenueTable"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapRevenueFromContractWithCustomerAbstract" xlink:to="loc_us-gaapDisaggregationOfRevenueTable" order="100"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DisaggregationOfRevenueLineItems" xlink:label="loc_us-gaapDisaggregationOfRevenueLineItems"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDisaggregationOfRevenueTable" xlink:to="loc_us-gaapDisaggregationOfRevenueLineItems" order="200"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_MajorCustomersAxis" xlink:label="loc_srtMajorCustomersAxis"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDisaggregationOfRevenueTable" xlink:to="loc_srtMajorCustomersAxis" order="10"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_NameOfMajorCustomerDomain" xlink:label="loc_srtNameOfMajorCustomerDomain"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtMajorCustomersAxis" xlink:to="loc_srtNameOfMajorCustomerDomain" order="0"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_EndUserCustomersMember" xlink:label="loc_GLGIEndUserCustomersMember"/> |
| | <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtNameOfMajorCustomerDomain" xlink:to="loc_GLGIEndUserCustomersMember" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_DistributorsMember" xlink:label="loc_GLGIDistributorsMember"/> |
| | <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtNameOfMajorCustomerDomain" xlink:to="loc_GLGIDistributorsMember" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis" xlink:label="loc_us-gaapConcentrationRiskByBenchmarkAxis"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDisaggregationOfRevenueTable" xlink:to="loc_us-gaapConcentrationRiskByBenchmarkAxis" order="20"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ConcentrationRiskBenchmarkDomain" xlink:label="loc_us-gaapConcentrationRiskBenchmarkDomain"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapConcentrationRiskByBenchmarkAxis" xlink:to="loc_us-gaapConcentrationRiskBenchmarkDomain" order="0"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RevenueFromContractWithCustomerMember" xlink:label="loc_us-gaapRevenueFromContractWithCustomerMember"/> |
| | <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapConcentrationRiskBenchmarkDomain" xlink:to="loc_us-gaapRevenueFromContractWithCustomerMember" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ConcentrationRiskByTypeAxis" xlink:label="loc_us-gaapConcentrationRiskByTypeAxis"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDisaggregationOfRevenueTable" xlink:to="loc_us-gaapConcentrationRiskByTypeAxis" order="30"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ConcentrationRiskTypeDomain" xlink:label="loc_us-gaapConcentrationRiskTypeDomain"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapConcentrationRiskByTypeAxis" xlink:to="loc_us-gaapConcentrationRiskTypeDomain" order="0"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CustomerConcentrationRiskMember" xlink:label="loc_us-gaapCustomerConcentrationRiskMember"/> |
| | <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapConcentrationRiskTypeDomain" xlink:to="loc_us-gaapCustomerConcentrationRiskMember" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ConcentrationRiskPercentage1" xlink:label="loc_us-gaapConcentrationRiskPercentage1"/> |
| | <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDisaggregationOfRevenueLineItems" xlink:to="loc_us-gaapConcentrationRiskPercentage1" xlink:type="arc"/> |
| | </link:presentationLink> |
| <link:presentationLink xlink:type="extended" xlink:role="http://greystonelogistics.com/role/RevenueDetailsNarrative" xlink:title="00000048 - Disclosure - REVENUE (Details Narrative)"> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RevenueFromContractWithCustomerAbstract" xlink:label="loc_us-gaapRevenueFromContractWithCustomerAbstract"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DisaggregationOfRevenueTable" xlink:label="loc_us-gaapDisaggregationOfRevenueTable"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapRevenueFromContractWithCustomerAbstract" xlink:to="loc_us-gaapDisaggregationOfRevenueTable" order="100"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DisaggregationOfRevenueLineItems" xlink:label="loc_us-gaapDisaggregationOfRevenueLineItems"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDisaggregationOfRevenueTable" xlink:to="loc_us-gaapDisaggregationOfRevenueLineItems" order="200"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_StatementGeographicalAxis" xlink:label="loc_srtStatementGeographicalAxis"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDisaggregationOfRevenueTable" xlink:to="loc_srtStatementGeographicalAxis" order="10"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_SegmentGeographicalDomain" xlink:label="loc_srtSegmentGeographicalDomain"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtStatementGeographicalAxis" xlink:to="loc_srtSegmentGeographicalDomain" order="0"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_CanadaandMexicoMember" xlink:label="loc_GLGICanadaandMexicoMember"/> |
| | <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtSegmentGeographicalDomain" xlink:to="loc_GLGICanadaandMexicoMember" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_ProductOrServiceAxis" xlink:label="loc_srtProductOrServiceAxis"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDisaggregationOfRevenueTable" xlink:to="loc_srtProductOrServiceAxis" order="20"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_ProductsAndServicesDomain" xlink:label="loc_srtProductsAndServicesDomain"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtProductOrServiceAxis" xlink:to="loc_srtProductsAndServicesDomain" order="0"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_PalletsMember" xlink:label="loc_GLGIPalletsMember"/> |
| | <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtProductsAndServicesDomain" xlink:to="loc_GLGIPalletsMember" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_RevenueFromContractWithCustomerSalesRevenuePercentage" xlink:label="loc_GLGIRevenueFromContractWithCustomerSalesRevenuePercentage"/> |
| | <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDisaggregationOfRevenueLineItems" xlink:to="loc_GLGIRevenueFromContractWithCustomerSalesRevenuePercentage" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ContractWithCustomerLiabilityRevenueRecognized" xlink:label="loc_us-gaapContractWithCustomerLiabilityRevenueRecognized"/> |
| | <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDisaggregationOfRevenueLineItems" xlink:to="loc_us-gaapContractWithCustomerLiabilityRevenueRecognized" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_UnrecognizedDeferredRevenue" xlink:label="loc_GLGIUnrecognizedDeferredRevenue"/> |
| | <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDisaggregationOfRevenueLineItems" xlink:to="loc_GLGIUnrecognizedDeferredRevenue" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DeferredRevenueRevenueRecognized1" xlink:label="loc_us-gaapDeferredRevenueRevenueRecognized1"/> |
| | <link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDisaggregationOfRevenueLineItems" xlink:to="loc_us-gaapDeferredRevenueRevenueRecognized1" xlink:type="arc"/> |
| | </link:presentationLink> |
| <link:presentationLink xlink:type="extended" xlink:role="http://greystonelogistics.com/role/RelatedPartyTransactionsDetailsNarrative" xlink:title="00000049 - Disclosure - RELATED PARTY TRANSACTIONS (Details Narrative)"> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RelatedPartyTransactionsAbstract" xlink:label="loc_us-gaapRelatedPartyTransactionsAbstract"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:label="loc_us-gaapScheduleOfRelatedPartyTransactionsByRelatedPartyTable"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapRelatedPartyTransactionsAbstract" xlink:to="loc_us-gaapScheduleOfRelatedPartyTransactionsByRelatedPartyTable" order="100"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RelatedPartyTransactionLineItems" xlink:label="loc_us-gaapRelatedPartyTransactionLineItems"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="loc_us-gaapRelatedPartyTransactionLineItems" order="200"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RelatedPartyTransactionAxis" xlink:label="loc_us-gaapRelatedPartyTransactionAxis"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="loc_us-gaapRelatedPartyTransactionAxis" order="10"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RelatedPartyTransactionDomain" xlink:label="loc_us-gaapRelatedPartyTransactionDomain"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapRelatedPartyTransactionAxis" xlink:to="loc_us-gaapRelatedPartyTransactionDomain" order="0"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_YorktownsGrindingAndPelletizingEquipmentMember" xlink:label="loc_GLGIYorktownsGrindingAndPelletizingEquipmentMember"/> |
| | <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapRelatedPartyTransactionDomain" xlink:to="loc_GLGIYorktownsGrindingAndPelletizingEquipmentMember" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_TriendaHoldingsLlcMember" xlink:label="loc_GLGITriendaHoldingsLlcMember"/> |
| | <link:presentationArc order="60" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapRelatedPartyTransactionDomain" xlink:to="loc_GLGITriendaHoldingsLlcMember" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_GreenPlasticPalletsMember" xlink:label="loc_GLGIGreenPlasticPalletsMember"/> |
| | <link:presentationArc order="90" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapRelatedPartyTransactionDomain" xlink:to="loc_GLGIGreenPlasticPalletsMember" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_StatementScenarioAxis" xlink:label="loc_srtStatementScenarioAxis"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="loc_srtStatementScenarioAxis" order="20"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_ScenarioUnspecifiedDomain" xlink:label="loc_srtScenarioUnspecifiedDomain"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtStatementScenarioAxis" xlink:to="loc_srtScenarioUnspecifiedDomain" order="0"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_WeeklyMember" xlink:label="loc_GLGIWeeklyMember"/> |
| | <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtScenarioUnspecifiedDomain" xlink:to="loc_GLGIWeeklyMember" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PaymentsForRent" xlink:label="loc_us-gaapPaymentsForRent"/> |
| | <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapRelatedPartyTransactionLineItems" xlink:to="loc_us-gaapPaymentsForRent" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_RentalRate" xlink:label="loc_GLGIRentalRate"/> |
| | <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapRelatedPartyTransactionLineItems" xlink:to="loc_GLGIRentalRate" xlink:type="arc"/> |
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| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:label="loc_us-gaapClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1"/> |
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| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_StockOptionAnnualInstallmentPercentage" xlink:label="loc_GLGIStockOptionAnnualInstallmentPercentage"/> |
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| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CustomerConcentrationRiskMember" xlink:label="loc_us-gaapCustomerConcentrationRiskMember"/> |
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| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ConcentrationRiskPercentage1" xlink:label="loc_us-gaapConcentrationRiskPercentage1"/> |
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| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_PurchasesFromCustomers" xlink:label="loc_GLGIPurchasesFromCustomers"/> |
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| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="loc_us-gaapScheduleOfPropertyPlantAndEquipmentTable"/> |
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| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="loc_us-gaapPropertyPlantAndEquipmentLineItems"/> |
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| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapScheduleOfPropertyPlantAndEquipmentTable" xlink:to="loc_us-gaapDebtInstrumentAxis" order="20"/> |
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| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_VariableInterestEntitiesConsolidatedCarryingAmountAssets" xlink:label="loc_GLGIVariableInterestEntitiesConsolidatedCarryingAmountAssets"/> |
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| | <link:loc xlink:type="locator" xlink:href="glgi-20220531.xsd#GLGI_VariableInterestEntitiesConsolidatedCarryingAmountLiabilities" xlink:label="loc_GLGIVariableInterestEntitiesConsolidatedCarryingAmountLiabilities"/> |
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| | <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PurchaseObligation" xlink:label="loc_us-gaapPurchaseObligation"/> |
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