Closing of Fundraise

TORONTO, ON / ACCESS Newswire / May 28, 2026 / Sintana Energy Inc. (TSXV:SEI)(AIM:SEI)(OTCQX:SEUSF) ("Sintana" or the "Company") is pleased to announce that, further to its announcements of 15 May 2026 ("Proposed Offering of Common Shares"), 18 May 2026 ("Result of Fundraise") and 26 May 2026 ("TSX-V Approval and PDMR Dealing"), the final condition, being Admission, has now been satisfied and as such the Fundraise has now closed. Pursuant to the Fundraise, the Company issued an aggregate of 38,001,253 New Common Shares at 22.5 pence per New Common Share on AIM and C$0.41 per New Common Share on the TSXV, to raise aggregate gross proceeds of US$11.5 million (£8.6 million, C$15.6 million).