Mr. Robert Bose reports

RESULTS OF AGM AND MANAGEMENT UPDATE PRESENTATION

At Sintana Energy Inc.'s annual and special meeting of shareholders held on Aug. 6, 2026, at 17 State St., fourth floor, New York, N.Y., United States, all resolutions put to shareholders were duly passed.

Following the meeting, Robert Bose, chief executive officer, and Eytan Uliel, president, provided a management update presentation, which is available on Sintana Energy's website.

Mr. Bose, chief executive officer of Sintana, said: "We are grateful for the ongoing support of our shareholders as we look forward to the next 12 months, where multiple high-impact catalysts are upcoming across our portfolio. We anticipate the next period will be an exciting and extremely busy one for our company."

Voting details

As at Aug. 6, 2026, being the record date for the meeting, there were 560,432,493 common shares of the company issued and outstanding, with no shares held in treasury, resulting in total voting rights of 560,432,493. The number of votes cast for and against each resolution and the number of votes withheld were as follows.

The full text of each resolution is available in the notice of the meeting and management information circular published on June 30, 2026, available on the company's website.

The board notes the votes in relation to Resolution No. 3, regarding approval of the company's new equity compensation plan. Whilst this resolution was passed as required by a majority of shareholders, a significant minority of shareholders were opposed to this resolution. Accordingly, the board will seek to engage with shareholders as required under the QCA Corporate Governance Code, with a view to further considering its future approach on this matter.

About Sintana Energy Inc.

Sintana Energy is an Atlantic Margin-focused oil and gas company, holding interests in a diverse portfolio of high-impact assets that spans the Southern Atlantic conjugate margin. The company's current portfolio is strategically positioned in the emerging frontier geographies of Namibia, Uruguay and Angola, with additional legacy assets in Colombia and the Bahamas. Led by an experienced team, Sintana Energy is partnered with major industry players and benefits from significant carry support on key licences across multiple jurisdictions. Sintana Energy is listed on the TSX Venture Exchange in Canada under the symbol SEI, in the United Kingdom on the London Stock Exchange (Alternative Investment Market) under the symbol SEI and in the United States on the OTCQX under the symbol SEUSF.