Mr. Gary Guidry reports

GRAN TIERRA ENERGY ANNOUNCES SALE OF GRAN TIERRA NORTH SEA LIMITED

A wholly owned subsidiary of Gran Tierra Energy Inc. has signed an agreement to sell its wholly owned subsidiary, Gran Tierra North Sea Ltd., to Neo Energy for total consideration of $7.5-million (U.S.). Neo Energy is a private upstream company and a leading independent operator in the United Kingdom continental shelf.

GTNSL holds a 100-per-cent equity interest in UKCS licence P2358, which includes the Serenity discovery.

Completion of the transaction is subject to certain customary conditions precedent, including consent from the North Sea Transition Authority, in respect of the change of control of GTNSL. The transaction is expected to close some time in the third quarter of 2025.

About Gran Tierra Energy Inc.

Gran Tierra, together with its subsidiaries, is an independent international energy company currently focused on oil and natural gas exploration and production in Canada, Colombia and Ecuador. The company is currently developing its existing portfolio of assets in Canada, Colombia and Ecuador, and will continue to pursue additional new growth opportunities that would further strengthen the company's portfolio. The company's common stock trades on the NYSE American, the Toronto Stock Exchange and the London Stock Exchange under the ticker symbol GTE.

We seek Safe Harbor.