As Of	Filer	Filing¹	For·On·As	Docs:Size	Issuer		Filing Agent

  3/3/20  JFL GP Investors IV, LLC          4          Other²      1:9K   US Ecology, Inc.                  EdgarAgents LLC/FA       
          JFL Equity Investors IV, L.P.
          JFL-NRCG Holdings IV, LLC
  3/2/20  JFL GP Investors IV, LLC          4          10% Owner²  1:9K   US Ecology, Inc.                  EdgarAgents LLC/FA       
          JFL Equity Investors IV, L.P.
          JFL-NRCG Holdings IV, LLC
 2/10/20  JFL GP Investors IV, LLC          4          10% Owner²  1:9K   US Ecology, Inc.                  EdgarAgents LLC/FA       
          JFL Equity Investors IV, L.P.
          JFL-NRCG Holdings IV, LLC
  1/9/20  JFL-NRCG Holdings IV, LLC         4          10% Owner²  1:9K   US Ecology, Inc.                  EdgarAgents LLC/FA       
          JFL Equity Investors IV, L.P.
          JFL GP Investors IV, LLC
11/12/19  JFL-NRCG Holdings IV, LLC         3          10% Owner²  2:30K  US Ecology, Inc.                  EdgarAgents LLC/FA       
          JFL Equity Investors IV, L.P.
          JFL GP Investors IV, LLC

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¹	Filing/Form Types:
	3	Initial Statement of Beneficial Ownership of Securities by an Insider — Form 3 { The Filer is an Insider² of the Issuer }.
	4	Statement of Changes in Beneficial Ownership of Securities by an Insider — Form 4 { The Filer is an Insider² of the Issuer }.
²	Insider:  The Filer is a Director, Officer, 10% Owner and/or Other “insider” of the Issuer.