SEC Info  
    Home      Search      My Interests      Help      Sign In      Please Sign In

Midwest Energy Emissions Corp. – ‘10-K’ for 12/31/23 – ‘EX-101.CAL’

On:  Tuesday, 4/16/24, at 4:36pm ET   ·   For:  12/31/23   ·   Accession #:  1477932-24-2170   ·   File #:  0-33067

Previous ‘10-K’:  ‘10-K’ on 5/15/23 for 12/31/22   ·   Latest ‘10-K’:  This Filing   ·   12 References:   

Find Words in Filings emoji
 
  in    Show  and   Hints

  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

 4/16/24  Midwest Energy Emissions Corp.    10-K       12/31/23   75:6.2M                                   Discount Edgar/FA

Annual Report   —   Form 10-K   —   SEA’34

Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 10-K        Annual Report                                       HTML   1.42M 
 2: EX-31.1     Certification -- §302 - SOA'02                      HTML     24K 
 3: EX-31.2     Certification -- §302 - SOA'02                      HTML     24K 
 4: EX-32.1     Certification -- §906 - SOA'02                      HTML     20K 
 5: EX-32.2     Certification -- §906 - SOA'02                      HTML     20K 
11: R1          Cover                                               HTML     84K 
12: R2          Consolidated Balance Sheets                         HTML    116K 
13: R3          Consolidated Balance Sheets (Parenthetical)         HTML     42K 
14: R4          Consolidated Statements of Operations               HTML    106K 
15: R5          Consolidated Statements of Stockholders Deficit     HTML     65K 
16: R6          Consolidated Statements of Cash Flows               HTML    100K 
17: R7          Organization                                        HTML     24K 
18: R8          Liquidity and Financial Condition                   HTML     24K 
19: R9          Summary of Significant Accounting Policies          HTML     97K 
20: R10         Inventory                                           HTML     27K 
21: R11         Property And Equipment Net                          HTML     35K 
22: R12         Intellectual Property                               HTML     34K 
23: R13         Related Party                                       HTML     58K 
24: R14         Operating Leases                                    HTML     36K 
25: R15         Commitments and Contingencies                       HTML     30K 
26: R16         Stock Based Compensation                            HTML     69K 
27: R17         Warrants                                            HTML     53K 
28: R18         Taxes                                               HTML     61K 
29: R19         Subsequent Events                                   HTML     29K 
30: R20         Basis of Presentation and Summary of Significant    HTML    131K 
                Accounting Policies (Policies)                                   
31: R21         Basis of Presentation and Summary of Significant    HTML     75K 
                Accounting Policies (Tables)                                     
32: R22         Inventory (Tables)                                  HTML     28K 
33: R23         Property And Equipment Net (Tables)                 HTML     33K 
34: R24         Intellectual Property (Tables)                      HTML     33K 
35: R25         Related Party (Tables)                              HTML     39K 
36: R26         Operating Leases (Tables)                           HTML     38K 
37: R27         Stock Based Compensation (Tables)                   HTML     47K 
38: R28         Warrants (Tables)                                   HTML     52K 
39: R29         Taxes (Tables)                                      HTML     57K 
40: R30         Organization (Details Narrative)                    HTML     23K 
41: R31         Liquidity and Financial Condition (Details          HTML     35K 
                Narrative)                                                       
42: R32         Basis of Presentation and Summary of Significant    HTML     36K 
                Accounting Policies (Details)                                    
43: R33         Basis of Presentation and Summary of Significant    HTML     33K 
                Accounting Policies (Details 1)                                  
44: R34         Basis of Presentation and Summary of Significant    HTML     40K 
                Accounting Policies (Details 2)                                  
45: R35         Basis of Presentation and Summary of Significant    HTML     44K 
                Accounting Policies (Details 3)                                  
46: R36         Basis of Presentation and Summary of Significant    HTML     24K 
                Accounting Policies (Details 4)                                  
47: R37         Basis of Presentation and Summary of Significant    HTML     52K 
                Accounting Policies (Details Narrative)                          
48: R38         Inventory (Details)                                 HTML     28K 
49: R39         Property and Equipment, Net (Details)               HTML     34K 
50: R40         Property and Equipment, Net (Details Narrative)     HTML     25K 
51: R41         Intellectual Property (Details)                     HTML     25K 
52: R42         Intellectual Property (Details 1)                   HTML     35K 
53: R43         Intellectual Property (Details Narrative)           HTML     35K 
54: R44         Related party (Details)                             HTML     29K 
55: R45         Related party (Details 1)                           HTML     26K 
56: R46         Related party (Details Narrative)                   HTML    105K 
57: R47         Operating Leases (Details)                          HTML     25K 
58: R48         Operating Leases (Details 1)                        HTML     32K 
59: R49         Operating Leases (Details 2)                        HTML     22K 
60: R50         Operating Leases (Details Narrative)                HTML     35K 
61: R51         Commitments and Contingencies (Details Narrative)   HTML     21K 
62: R52         Stock Based Compensation (Details)                  HTML     53K 
63: R53         Stock Based Compensation (Details Narrative)        HTML    206K 
64: R54         Warrants (Details)                                  HTML     53K 
65: R55         Warrants (Details 1)                                HTML     25K 
66: R56         Taxes (Details)                                     HTML     27K 
67: R57         Taxes (Details 1)                                   HTML     39K 
68: R58         Taxes (Details 2)                                   HTML     41K 
69: R59         Taxes (Details Narrative)                           HTML     30K 
70: R60         Subsequent Events (Details Narrative)               HTML     69K 
72: XML         IDEA XML File -- Filing Summary                      XML    135K 
75: XML         XBRL Instance -- meec_10k_htm                        XML   1.37M 
71: EXCEL       IDEA Workbook of Financial Report Info              XLSX    138K 
 8: EX-101.CAL  XBRL Calculations -- sdff-20231231_cal               XML    137K 
10: EX-101.DEF  XBRL Definitions -- sdff-20231231_def                XML    463K 
 7: EX-101.LAB  XBRL Labels -- sdff-20231231_lab                     XML    924K 
 9: EX-101.PRE  XBRL Presentations -- sdff-20231231_pre              XML    758K 
 6: EX-101.SCH  XBRL Schema -- sdff-20231231                         XSD    201K 
73: JSON        XBRL Instance as JSON Data -- MetaLinks              413±   568K 
74: ZIP         XBRL Zipped Folder -- 0001477932-24-002170-xbrl      Zip    285K 


‘EX-101.CAL’   —   XBRL Calculations — sdff-20231231_cal


This Exhibit is an XBRL File.


                                                                                                                                                                                
<?xml version="1.0" standalone="yes" encoding="windows-1252"?>
<!-- XBRL Document Created with XBRLMaster -->
<!-- Version: 2.3.08 -->
<!-- Based on XBRL 2.1 -->
<!-- Date of creation: 04/16/2024 -->
<!-- Software architectural design and coding: A'c Dharmapremananda Avt. -->
<!-- Copyright (c) 2024 I-NET Business Solutions, Inc. All Rights Reserved. -->
<link:linkbase xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:link="http://www.xbrl.org/2003/linkbase" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
<link:roleRef roleURI="http://meec.com/role/Cover" xlink:href="sdff-20231231.xsd#Cover" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/ConsolidatedBalanceSheets" xlink:href="sdff-20231231.xsd#ConsolidatedBalanceSheets" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/ConsolidatedBalanceSheetsParenthetical" xlink:href="sdff-20231231.xsd#ConsolidatedBalanceSheetsParenthetical" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/ConsolidatedStatementsOfOperations" xlink:href="sdff-20231231.xsd#ConsolidatedStatementsOfOperations" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/ConsolidatedStatementsOfStockholdersDeficit" xlink:href="sdff-20231231.xsd#ConsolidatedStatementsOfStockholdersDeficit" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/ConsolidatedStatementsOfCashFlows" xlink:href="sdff-20231231.xsd#ConsolidatedStatementsOfCashFlows" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/Organization" xlink:href="sdff-20231231.xsd#Organization" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/LiquidityAndFinancialCondition" xlink:href="sdff-20231231.xsd#LiquidityAndFinancialCondition" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/SummaryOfSignificantAccountingPolicies" xlink:href="sdff-20231231.xsd#SummaryOfSignificantAccountingPolicies" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/Inventory" xlink:href="sdff-20231231.xsd#Inventory" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/PropertyAndEquipmentNet" xlink:href="sdff-20231231.xsd#PropertyAndEquipmentNet" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/IntellectualProperty" xlink:href="sdff-20231231.xsd#IntellectualProperty" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/RelatedParty" xlink:href="sdff-20231231.xsd#RelatedParty" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/OperatingLeases" xlink:href="sdff-20231231.xsd#OperatingLeases" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/CommitmentsAndContingencies" xlink:href="sdff-20231231.xsd#CommitmentsAndContingencies" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/StockBasedCompensation" xlink:href="sdff-20231231.xsd#StockBasedCompensation" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/Warrants" xlink:href="sdff-20231231.xsd#Warrants" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/Taxes" xlink:href="sdff-20231231.xsd#Taxes" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/SubsequentEvents" xlink:href="sdff-20231231.xsd#SubsequentEvents" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPolicies" xlink:href="sdff-20231231.xsd#BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPolicies" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesTables" xlink:href="sdff-20231231.xsd#BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesTables" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/InventoryTables" xlink:href="sdff-20231231.xsd#InventoryTables" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/PropertyAndEquipmentNetTables" xlink:href="sdff-20231231.xsd#PropertyAndEquipmentNetTables" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/IntellectualPropertyTables" xlink:href="sdff-20231231.xsd#IntellectualPropertyTables" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/RelatedPartyTables" xlink:href="sdff-20231231.xsd#RelatedPartyTables" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/OperatingLeasesTables" xlink:href="sdff-20231231.xsd#OperatingLeasesTables" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/StockBasedCompensationTables" xlink:href="sdff-20231231.xsd#StockBasedCompensationTables" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/WarrantsTables" xlink:href="sdff-20231231.xsd#WarrantsTables" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/TaxesTables" xlink:href="sdff-20231231.xsd#TaxesTables" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/OrganizationDetailsNarrative" xlink:href="sdff-20231231.xsd#OrganizationDetailsNarrative" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/LiquidityAndFinancialConditionDetailsNarrative" xlink:href="sdff-20231231.xsd#LiquidityAndFinancialConditionDetailsNarrative" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails" xlink:href="sdff-20231231.xsd#BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails1" xlink:href="sdff-20231231.xsd#BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails1" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails2" xlink:href="sdff-20231231.xsd#BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails2" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails3" xlink:href="sdff-20231231.xsd#BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails3" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails4" xlink:href="sdff-20231231.xsd#BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails4" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetailsNarrative" xlink:href="sdff-20231231.xsd#BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetailsNarrative" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/InventoryDetails" xlink:href="sdff-20231231.xsd#InventoryDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/PropertyAndEquipmentNetDetails" xlink:href="sdff-20231231.xsd#PropertyAndEquipmentNetDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/PropertyAndEquipmentNetDetailsNarrative" xlink:href="sdff-20231231.xsd#PropertyAndEquipmentNetDetailsNarrative" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/IntellectualPropertyDetails" xlink:href="sdff-20231231.xsd#IntellectualPropertyDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/IntellectualPropertyDetails1" xlink:href="sdff-20231231.xsd#IntellectualPropertyDetails1" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/IntellectualPropertyDetailsNarrative" xlink:href="sdff-20231231.xsd#IntellectualPropertyDetailsNarrative" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/RelatedPartyDetails" xlink:href="sdff-20231231.xsd#RelatedPartyDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/RelatedPartyDetails1" xlink:href="sdff-20231231.xsd#RelatedPartyDetails1" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/RelatedPartyDetailsNarrative" xlink:href="sdff-20231231.xsd#RelatedPartyDetailsNarrative" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/OperatingLeasesDetails" xlink:href="sdff-20231231.xsd#OperatingLeasesDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/OperatingLeasesDetails1" xlink:href="sdff-20231231.xsd#OperatingLeasesDetails1" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/OperatingLeasesDetails2" xlink:href="sdff-20231231.xsd#OperatingLeasesDetails2" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/OperatingLeasesDetailsNarrative" xlink:href="sdff-20231231.xsd#OperatingLeasesDetailsNarrative" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/CommitmentsAndContingenciesDetailsNarrative" xlink:href="sdff-20231231.xsd#CommitmentsAndContingenciesDetailsNarrative" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/StockBasedCompensationDetails" xlink:href="sdff-20231231.xsd#StockBasedCompensationDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/StockBasedCompensationDetailsNarrative" xlink:href="sdff-20231231.xsd#StockBasedCompensationDetailsNarrative" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/WarrantsDetails" xlink:href="sdff-20231231.xsd#WarrantsDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/WarrantsDetails1" xlink:href="sdff-20231231.xsd#WarrantsDetails1" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/TaxesDetails" xlink:href="sdff-20231231.xsd#TaxesDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/TaxesDetails1" xlink:href="sdff-20231231.xsd#TaxesDetails1" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/TaxesDetails2" xlink:href="sdff-20231231.xsd#TaxesDetails2" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/TaxesDetailsNarrative" xlink:href="sdff-20231231.xsd#TaxesDetailsNarrative" xlink:type="simple"/>
<link:roleRef roleURI="http://meec.com/role/SubsequentEventsDetailsNarrative" xlink:href="sdff-20231231.xsd#SubsequentEventsDetailsNarrative" xlink:type="simple"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/Cover" xlink:title="00000001 - Document - Document and Entity Information"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/ConsolidatedBalanceSheets" xlink:title="000002 - Statement - CONSOLIDATED BALANCE SHEETS">
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetsCurrent" xlink:label="loc_us-gaapAssetsCurrent"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:label="loc_us-gaapPrepaidExpenseAndOtherAssetsCurrent"/>
<link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssetsCurrent" xlink:to="loc_us-gaapPrepaidExpenseAndOtherAssetsCurrent" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaapCashAndCashEquivalentsAtCarryingValue"/>
<link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssetsCurrent" xlink:to="loc_us-gaapCashAndCashEquivalentsAtCarryingValue" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="loc_us-gaapAccountsReceivableNetCurrent"/>
<link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssetsCurrent" xlink:to="loc_us-gaapAccountsReceivableNetCurrent" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InventoryNet" xlink:label="loc_us-gaapInventoryNet"/>
<link:calculationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssetsCurrent" xlink:to="loc_us-gaapInventoryNet" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Assets" xlink:label="loc_us-gaapAssets"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsGross" xlink:label="loc_us-gaapFiniteLivedIntangibleAssetsGross"/>
<link:calculationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssets" xlink:to="loc_us-gaapFiniteLivedIntangibleAssetsGross" xlink:type="arc" weight="1"/>
<link:calculationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssets" xlink:to="loc_us-gaapAssetsCurrent" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SecurityDeposit" xlink:label="loc_us-gaapSecurityDeposit"/>
<link:calculationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssets" xlink:to="loc_us-gaapSecurityDeposit" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaapPropertyPlantAndEquipmentNet"/>
<link:calculationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssets" xlink:to="loc_us-gaapPropertyPlantAndEquipmentNet" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingLeaseRightOfUseAsset" xlink:label="loc_us-gaapOperatingLeaseRightOfUseAsset"/>
<link:calculationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssets" xlink:to="loc_us-gaapOperatingLeaseRightOfUseAsset" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_us-gaapLiabilitiesCurrent"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountsPayableAndOtherAccruedLiabilities" xlink:label="loc_us-gaapAccountsPayableAndOtherAccruedLiabilities"/>
<link:calculationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesCurrent" xlink:to="loc_us-gaapAccountsPayableAndOtherAccruedLiabilities" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TaxesPayableCurrent" xlink:label="loc_us-gaapTaxesPayableCurrent"/>
<link:calculationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesCurrent" xlink:to="loc_us-gaapTaxesPayableCurrent" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="sdff-20231231.xsd#sdff_CurrentPortionOfOperatingLeaseLiability" xlink:label="loc_sdffCurrentPortionOfOperatingLeaseLiability"/>
<link:calculationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesCurrent" xlink:to="loc_sdffCurrentPortionOfOperatingLeaseLiability" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CustomerLoyaltyProgramLiabilityCurrent" xlink:label="loc_us-gaapCustomerLoyaltyProgramLiabilityCurrent"/>
<link:calculationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesCurrent" xlink:to="loc_us-gaapCustomerLoyaltyProgramLiabilityCurrent" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccruedSalariesCurrent" xlink:label="loc_us-gaapAccruedSalariesCurrent"/>
<link:calculationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesCurrent" xlink:to="loc_us-gaapAccruedSalariesCurrent" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Liabilities" xlink:label="loc_us-gaapLiabilities"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NotesPayable" xlink:label="loc_us-gaapNotesPayable"/>
<link:calculationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilities" xlink:to="loc_us-gaapNotesPayable" xlink:type="arc" weight="1"/>
<link:calculationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilities" xlink:to="loc_us-gaapLiabilitiesCurrent" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingLeaseLiability" xlink:label="loc_us-gaapOperatingLeaseLiability"/>
<link:calculationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilities" xlink:to="loc_us-gaapOperatingLeaseLiability" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConvertibleNotesPayable" xlink:label="loc_us-gaapConvertibleNotesPayable"/>
<link:calculationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilities" xlink:to="loc_us-gaapConvertibleNotesPayable" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TimeSharingTransactionsDeferredProfit" xlink:label="loc_us-gaapTimeSharingTransactionsDeferredProfit"/>
<link:calculationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilities" xlink:to="loc_us-gaapTimeSharingTransactionsDeferredProfit" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaapStockholdersEquity"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockValue" xlink:label="loc_us-gaapPreferredStockValue"/>
<link:calculationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapStockholdersEquity" xlink:to="loc_us-gaapPreferredStockValue" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockValue" xlink:label="loc_us-gaapCommonStockValue"/>
<link:calculationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapStockholdersEquity" xlink:to="loc_us-gaapCommonStockValue" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdditionalPaidInCapital" xlink:label="loc_us-gaapAdditionalPaidInCapital"/>
<link:calculationArc order="23" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapStockholdersEquity" xlink:to="loc_us-gaapAdditionalPaidInCapital" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_us-gaapRetainedEarningsAccumulatedDeficit"/>
<link:calculationArc order="24" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapStockholdersEquity" xlink:to="loc_us-gaapRetainedEarningsAccumulatedDeficit" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaapLiabilitiesAndStockholdersEquity"/>
<link:calculationArc order="25" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesAndStockholdersEquity" xlink:to="loc_us-gaapLiabilities" xlink:type="arc" weight="1"/>
<link:calculationArc order="26" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesAndStockholdersEquity" xlink:to="loc_us-gaapStockholdersEquity" xlink:type="arc" weight="1"/>
</link:calculationLink>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/ConsolidatedBalanceSheetsParenthetical" xlink:title="000003 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/ConsolidatedStatementsOfOperations" xlink:title="000004 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS">
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GrossProfit" xlink:label="loc_us-gaapGrossProfit"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CostOfGoodsAndServicesSold" xlink:label="loc_us-gaapCostOfGoodsAndServicesSold"/>
<link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapGrossProfit" xlink:to="loc_us-gaapCostOfGoodsAndServicesSold" xlink:type="arc" weight="-1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Revenues" xlink:label="loc_us-gaapRevenues"/>
<link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapGrossProfit" xlink:to="loc_us-gaapRevenues" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingExpenses" xlink:label="loc_us-gaapOperatingExpenses"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SellingGeneralAndAdministrativeExpense" xlink:label="loc_us-gaapSellingGeneralAndAdministrativeExpense"/>
<link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOperatingExpenses" xlink:to="loc_us-gaapSellingGeneralAndAdministrativeExpense" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GoodwillImpairmentLoss" xlink:label="loc_us-gaapGoodwillImpairmentLoss"/>
<link:calculationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOperatingExpenses" xlink:to="loc_us-gaapGoodwillImpairmentLoss" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaapOperatingIncomeLoss"/>
<link:calculationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOperatingIncomeLoss" xlink:to="loc_us-gaapGrossProfit" xlink:type="arc" weight="1"/>
<link:calculationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOperatingIncomeLoss" xlink:to="loc_us-gaapOperatingExpenses" xlink:type="arc" weight="-1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherNonoperatingIncomeExpense" xlink:label="loc_us-gaapOtherNonoperatingIncomeExpense"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:label="loc_us-gaapIncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments"/>
<link:calculationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOtherNonoperatingIncomeExpense" xlink:to="loc_us-gaapIncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InterestExpense" xlink:label="loc_us-gaapInterestExpense"/>
<link:calculationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOtherNonoperatingIncomeExpense" xlink:to="loc_us-gaapInterestExpense" xlink:type="arc" weight="-1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueOptionChangesInFairValueGainLoss1" xlink:label="loc_us-gaapFairValueOptionChangesInFairValueGainLoss1"/>
<link:calculationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOtherNonoperatingIncomeExpense" xlink:to="loc_us-gaapFairValueOptionChangesInFairValueGainLoss1" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_UnrealizedGainLossOnInvestments" xlink:label="loc_us-gaapUnrealizedGainLossOnInvestments"/>
<link:calculationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOtherNonoperatingIncomeExpense" xlink:to="loc_us-gaapUnrealizedGainLossOnInvestments" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:label="loc_us-gaapIncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
<link:calculationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapIncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:to="loc_us-gaapOtherNonoperatingIncomeExpense" xlink:type="arc" weight="1"/>
<link:calculationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapIncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:to="loc_us-gaapOperatingIncomeLoss" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaapNetIncomeLoss"/>
<link:calculationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetIncomeLoss" xlink:to="loc_us-gaapIncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaapIncomeTaxExpenseBenefit"/>
<link:calculationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetIncomeLoss" xlink:to="loc_us-gaapIncomeTaxExpenseBenefit" xlink:type="arc" weight="-1"/>
</link:calculationLink>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/ConsolidatedStatementsOfStockholdersDeficit" xlink:title="000005 - Statement - CONSOLIDATED STATEMENTS OF STOCKHOLDERS DEFICIT"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/ConsolidatedStatementsOfCashFlows" xlink:title="000006 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS">
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaapNetCashProvidedByUsedInOperatingActivities"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaapShareBasedCompensation"/>
<link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapShareBasedCompensation" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="sdff-20231231.xsd#sdff_StockBasedCompensationAmortizationOfPrepaidServices" xlink:label="loc_sdffStockBasedCompensationAmortizationOfPrepaidServices"/>
<link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_sdffStockBasedCompensationAmortizationOfPrepaidServices" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AmortizationOfDebtDiscountPremium" xlink:label="loc_us-gaapAmortizationOfDebtDiscountPremium"/>
<link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapAmortizationOfDebtDiscountPremium" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AmortizationOfFinancingCosts" xlink:label="loc_us-gaapAmortizationOfFinancingCosts"/>
<link:calculationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapAmortizationOfFinancingCosts" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FinanceLeaseRightOfUseAssetAmortization" xlink:label="loc_us-gaapFinanceLeaseRightOfUseAssetAmortization"/>
<link:calculationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapFinanceLeaseRightOfUseAssetAmortization" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="sdff-20231231.xsd#sdff_AmortizationOfPatents" xlink:label="loc_sdffAmortizationOfPatents"/>
<link:calculationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_sdffAmortizationOfPatents" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:label="loc_us-gaapDepreciationDepletionAndAmortization"/>
<link:calculationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapDepreciationDepletionAndAmortization" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GoodwillImpairmentLoss" xlink:label="loc_us-gaapGoodwillImpairmentLoss"/>
<link:calculationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapGoodwillImpairmentLoss" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="sdff-20231231.xsd#sdff_GainLossOnChangeInFairValueOfProfitShare" xlink:label="loc_sdffGainLossOnChangeInFairValueOfProfitShare"/>
<link:calculationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_sdffGainLossOnChangeInFairValueOfProfitShare" xlink:type="arc" weight="-1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:label="loc_us-gaapIncreaseDecreaseInAccountsReceivable"/>
<link:calculationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapIncreaseDecreaseInAccountsReceivable" xlink:type="arc" weight="-1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInInventories" xlink:label="loc_us-gaapIncreaseDecreaseInInventories"/>
<link:calculationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapIncreaseDecreaseInInventories" xlink:type="arc" weight="-1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:label="loc_us-gaapIncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets"/>
<link:calculationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapIncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:type="arc" weight="-1"/>
<link:loc xlink:type="locator" xlink:href="sdff-20231231.xsd#sdff_IncreaseDecreaseAccruedSalaries" xlink:label="loc_sdffIncreaseDecreaseAccruedSalaries"/>
<link:calculationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_sdffIncreaseDecreaseAccruedSalaries" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xlink:label="loc_us-gaapIncreaseDecreaseInAccountsPayableAndAccruedLiabilities"/>
<link:calculationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapIncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInOtherOperatingLiabilities" xlink:label="loc_us-gaapIncreaseDecreaseInOtherOperatingLiabilities"/>
<link:calculationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapIncreaseDecreaseInOtherOperatingLiabilities" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaapProfitLoss"/>
<link:calculationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapProfitLoss" xlink:type="arc" weight="-1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaapNetCashProvidedByUsedInInvestingActivities"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="loc_us-gaapPaymentsToAcquirePropertyPlantAndEquipment"/>
<link:calculationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInInvestingActivities" xlink:to="loc_us-gaapPaymentsToAcquirePropertyPlantAndEquipment" xlink:type="arc" weight="-1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaapNetCashProvidedByUsedInFinancingActivities"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromStockOptionsExercised" xlink:label="loc_us-gaapProceedsFromStockOptionsExercised"/>
<link:calculationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaapProceedsFromStockOptionsExercised" xlink:type="arc" weight="1"/>
<link:loc xlink:type="locator" xlink:href="sdff-20231231.xsd#sdff_PaymentsOfEquipmentNotesPayable" xlink:label="loc_sdffPaymentsOfEquipmentNotesPayable"/>
<link:calculationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_sdffPaymentsOfEquipmentNotesPayable" xlink:type="arc" weight="-1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:label="loc_us-gaapCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
<link:calculationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:to="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:type="arc" weight="1"/>
<link:calculationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:to="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:type="arc" weight="1"/>
<link:calculationArc order="23" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:to="loc_us-gaapNetCashProvidedByUsedInInvestingActivities" xlink:type="arc" weight="1"/>
</link:calculationLink>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/Organization" xlink:title="000007 - Disclosure - Organization"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/LiquidityAndFinancialCondition" xlink:title="000008 - Disclosure - Liquidity and Financial Condition"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/SummaryOfSignificantAccountingPolicies" xlink:title="000009 - Disclosure - Summary of Significant Accounting Policies"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/Inventory" xlink:title="000010 - Disclosure - Inventory"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/PropertyAndEquipmentNet" xlink:title="000011 - Disclosure - Property And Equipment Net"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/IntellectualProperty" xlink:title="000012 - Disclosure - Intellectual Property"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/RelatedParty" xlink:title="000013 - Disclosure - Related Party"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/OperatingLeases" xlink:title="000014 - Disclosure - Operating Leases"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/CommitmentsAndContingencies" xlink:title="000015 - Disclosure - Commitments and Contingencies"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/StockBasedCompensation" xlink:title="000016 - Disclosure - Stock Based Compensation"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/Warrants" xlink:title="000017 - Disclosure - Warrants"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/Taxes" xlink:title="000018 - Disclosure - Taxes"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/SubsequentEvents" xlink:title="000019 - Disclosure - Subsequent Events"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPolicies" xlink:title="000020 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies (Policies)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesTables" xlink:title="000021 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies (Tables)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/InventoryTables" xlink:title="000022 - Disclosure - Inventory (Tables)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/PropertyAndEquipmentNetTables" xlink:title="000023 - Disclosure - Property And Equipment Net (Tables)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/IntellectualPropertyTables" xlink:title="000024 - Disclosure - Intellectual Property (Tables)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/RelatedPartyTables" xlink:title="000025 - Disclosure - Related Party (Tables)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/OperatingLeasesTables" xlink:title="000026 - Disclosure - Operating Leases (Tables)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/StockBasedCompensationTables" xlink:title="000027 - Disclosure - Stock Based Compensation (Tables)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/WarrantsTables" xlink:title="000028 - Disclosure - Warrants (Tables)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/TaxesTables" xlink:title="000029 - Disclosure - Taxes (Tables)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/OrganizationDetailsNarrative" xlink:title="000030 - Disclosure - Organization (Details Narrative)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/LiquidityAndFinancialConditionDetailsNarrative" xlink:title="000031 - Disclosure - Liquidity and Financial Condition (Details Narrative)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails" xlink:title="000032 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies (Details)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails1" xlink:title="000033 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies (Details 1)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails2" xlink:title="000034 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies (Details 2)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails3" xlink:title="000035 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies (Details 3)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails4" xlink:title="000036 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies (Details 4)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetailsNarrative" xlink:title="000037 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies (Details Narrative)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/InventoryDetails" xlink:title="000038 - Disclosure - Inventory (Details)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/PropertyAndEquipmentNetDetails" xlink:title="000039 - Disclosure - Property and Equipment, Net (Details)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/PropertyAndEquipmentNetDetailsNarrative" xlink:title="000040 - Disclosure - Property and Equipment, Net (Details Narrative)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/IntellectualPropertyDetails" xlink:title="000041 - Disclosure - Intellectual Property (Details)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/IntellectualPropertyDetails1" xlink:title="000042 - Disclosure - Intellectual Property (Details 1)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/IntellectualPropertyDetailsNarrative" xlink:title="000043 - Disclosure - Intellectual Property (Details Narrative)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/RelatedPartyDetails" xlink:title="000044 - Disclosure - Related party (Details)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/RelatedPartyDetails1" xlink:title="000045 - Disclosure - Related party (Details 1)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/RelatedPartyDetailsNarrative" xlink:title="000046 - Disclosure - Related party (Details Narrative)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/OperatingLeasesDetails" xlink:title="000047 - Disclosure - Operating Leases (Details)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/OperatingLeasesDetails1" xlink:title="000048 - Disclosure - Operating Leases (Details 1)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/OperatingLeasesDetails2" xlink:title="000049 - Disclosure - Operating Leases (Details 2)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/OperatingLeasesDetailsNarrative" xlink:title="000050 - Disclosure - Operating Leases (Details Narrative)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/CommitmentsAndContingenciesDetailsNarrative" xlink:title="000051 - Disclosure - Commitments and Contingencies (Details Narrative)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/StockBasedCompensationDetails" xlink:title="000052 - Disclosure - Stock Based Compensation (Details)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/StockBasedCompensationDetailsNarrative" xlink:title="000053 - Disclosure - Stock Based Compensation (Details Narrative)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/WarrantsDetails" xlink:title="000054 - Disclosure - Warrants (Details)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/WarrantsDetails1" xlink:title="000055 - Disclosure - Warrants (Details 1)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/TaxesDetails" xlink:title="000056 - Disclosure - Taxes (Details)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/TaxesDetails1" xlink:title="000057 - Disclosure - Taxes (Details 1)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/TaxesDetails2" xlink:title="000058 - Disclosure - Taxes (Details 2)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/TaxesDetailsNarrative" xlink:title="000059 - Disclosure - Taxes (Details Narrative)"/>
<link:calculationLink xlink:type="extended" xlink:role="http://meec.com/role/SubsequentEventsDetailsNarrative" xlink:title="000060 - Disclosure - Subsequent Events (Details Narrative)"/>
</link:linkbase>


12 Previous Filings that this Filing References

  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

 3/04/24  Midwest Energy Emissions Corp.    8-K:1,2,8   2/27/24   15:365K                                   Discount Edgar/FA
 7/06/23  Midwest Energy Emissions Corp.    8-K:5,9     7/03/23   14:408K                                   Discount Edgar/FA
 5/15/23  Midwest Energy Emissions Corp.    10-K       12/31/22   82:6.3M                                   Discount Edgar/FA
 2/03/23  Midwest Energy Emissions Corp.    8-K:1,9     1/31/23   13:220K                                   Discount Edgar/FA
11/02/22  Midwest Energy Emissions Corp.    8-K:1,2,9  10/28/22   16:303K                                   Discount Edgar/FA
 5/14/20  Midwest Energy Emissions Corp.    10-K       12/31/19   87:6.3M                                   Discount Edgar/FA
 4/11/19  Midwest Energy Emissions Corp.    10-K       12/31/18   75:4.5M                                   Discount Edgar/FA
 4/17/18  Midwest Energy Emissions Corp.    10-K       12/31/17   75:5.5M                                   Discount Edgar/FA
 8/21/17  Midwest Energy Emissions Corp.    10-Q        6/30/17   70:3.8M                                   Discount Edgar/FA
 3/20/15  Midwest Energy Emissions Corp.    10-K       12/31/14   78:13M                                    Discount Edgar/FA
11/20/14  Midwest Energy Emissions Corp.    8-K:1,9    11/16/14    2:83K                                    Discount Edgar/FA
10/16/14  Midwest Energy Emissions Corp.    8-K:5,9    10/09/14    2:77K                                    Discount Edgar/FA
Top
Filing Submission 0001477932-24-002170   –   Alternative Formats (Word / Rich Text, HTML, Plain Text, et al.)

Copyright © 2024 Fran Finnegan & Company LLC – All Rights Reserved.
AboutPrivacyRedactionsHelp — Wed., May 15, 2:38:24.2pm ET