Mr. Robert Bose reports

SINTANA ENERGY INC. ANNOUNCES SEDAR FILING

Sintana Energy Inc. has filed a material change report today in respect of its previous press release dated Oct. 9, 2025, at the request of staff of the Ontario Securities Commission (OSC) in connection with an OSC staff review, in order to rectify an earlier deficiency in filing the material change report within 10 days of the Oct. 9, 2025, press release pursuant to National Instrument 51-102.

The material change report contains the disclosure previously announced pursuant to the company's original press release dated Oct. 9, 2025, both of which are available on SEDAR+.

About Sintana Energy Inc.

The company is engaged in petroleum and natural gas exploration and development activities in five large, highly prospective, onshore and offshore petroleum exploration licences in Namibia, as well as in Colombia's Magdalena basin. Sintana's exploration strategy is to acquire, explore, develop and produce superior quality assets with substantial value-added potential.

We seek Safe Harbor.