X0206 3 2021-07-19 0 0001847112 TortoiseEcofin Acquisition Corp. III TRTL 0001847113 TortoiseEcofin Sponsor III LLC 6363 COLLEGE BOULEVARD OVERLAND PARK KS 66211 0 0 1 0 0001735321 TortoiseEcofin Borrower LLC 6363 COLLEGE BOULEVARD OVERLAND PARK KS 66211 0 0 1 0 0001730884 TortoiseEcofin Investments, LLC 6363 COLLEGE BOULEVARD OVERLAND PARK KS 66211 0 0 1 0 Class B Ordinary Shares Class A Ordinary Shares 8625000 I See footnote The Class B Ordinary Shares are convertible into the Issuer's Class A Ordinary Shares on a one-for-one basis, subject to adjustment pursuant to certain anti-dilution rights and have no expiration date. Includes 1,125,000 Class B Ordinary Shares that are subject to forfeiture if the underwriters in the Issuer's initial public offering do not exercise their over-allotment option. TortoiseEcofin Sponsor III LLC is the record holder of the shares reported herein. TortoiseEcofin Borrower LLC is the managing member of TortoiseEcofin Sponsor III LLC. TortoiseEcofin Parent Holdco LLC is the sole member of TortoiseEcofin Borrower LLC, and TortoiseEcofin Investments, LLC is the sole member of TortoiseEcofin Parent Holdco LLC. Accordingly, TortoiseEcofin Borrower LLC and TortoiseEcofin Investments, LLC may be deemed to have or share beneficial ownership of the ordinary shares held directly by TortoiseEcofin Sponsor III LLC. The address of each of TortoiseEcofin Borrower LLC and TortoiseEcofin Investments, LLC is 6363 College Boulevard, Overland Park, Kansas 66211. Exhibit List: Exhibit 24.1 - Power of Attorney (TortoiseEcofin Sponsor III LLC), Exhibit 24.2 - Power of Attorney (TortoiseEcofin Borrower LLC) and Exhibit 24.3 - Power of Attorney (TortoiseEcofin Investments, LLC) /s/ TortoiseEcofin Sponsor III LLC, by Steven C. Schnitzer as Attorney-in-Fact 2021-07-19 /s/ TortoiseEcofin Borrower LLC, by Steven C. Schnitzer as Attorney-in-Fact 2021-07-19 /s/ TortoiseEcofin Investments, LLC, by Steven C. Schnitzer as Attorney-in-Fact 2021-07-19