The New York Stock Exchange (“NYSE”, the “Exchange”) announced today that the staff of NYSE Regulation has determined to commence proceedings to delist the three securities enumerated below (“Securities”) of TortoiseEcofin Acquisition Corp. III (the “Company”) from the Exchange. Trading in the Company’s Securities will be suspended immediately.

Symbol

Description

TRTL

Class A Ordinary Shares included as part of the units

TRTL.U

Units, each consisting of one share of Class A Ordinary Share, $0.0001 par value, and one-fourth of one redeemable warrant

TRTL WS

Redeemable warrants included as part of the units, each whole warrant exercisable for one Class A Ordinary Share at an exercise price of $11.50

NYSE Regulation reached its decision to delist the Company’s Securities pursuant to Sections 802.01B and 102.06e. of the NYSE’s Listed Company Manual because the Company failed to consummate a business combination within the shorter of (i) the time period specified by its constitutive documents or by contract or (ii) three years.

The Company has a right to a review of this determination by a Committee of the Board of Directors of the Exchange. The NYSE will apply to the Securities and Exchange Commission to delist the Company’s Securities upon completion of all applicable procedures, including any appeal by the Company of the NYSE Regulation staff’s decision.

Company Contact: TortoiseEcofin Acquisition Corp. III 195 US HWY 50, Suite 309 Zephyr Cove, NV 89448 Attn: Vincent T. Cubbage, Chief Executive Officer Tel: (913) 981-1020

NYSE Contact: NYSE Communications PublicRelations-NYSE@ice.com