Update on Block 8 Well Tests.

The information contained within this announcement is deemed to constitute inside information as stipulated under the retained EU law version of the Market Abuse Regulation (EU) No. 596/2014 (the "UK MAR") which is part of UK law by virtue of the European Union (Withdrawal) Act 2018. The information is disclosed in accordance with the Company's obligations under Article 17 of the UK MAR. Upon the publication of this announcement, this inside information is now considered to be in the public domain.

Caspian Sunrise PLC

("Caspian Sunrise" or the "Company" and together with its subsidiaries, the "Group")

Update on Block 8 Well Tests

Introduction

The Board of Caspian Sunrise is pleased to update the market with operational progress at the Block 8 Contract Area.

Background

As previously announced the Group is nearing the end of the process to acquire the Block 8 Contract Area, which extends over 2,823 sq km and is approximately 160 km from the BNG Contract Area.

The licence for the Sholkara structure on the Block 8 Contract Area was renewed in Q4 2024, which has allowed the resumption of drilling and testing of the two deep wells previously drilled.

Deep Well P1 was drilled to a depth of 3,434 meters and Deep Well P2 drilled to a depth of 3,415 meters.

Testing

Test production from Deep Well P2 has increased to approximately 876 bopd using a 4mm choke.

At Deep Well P1, the well has been perforated across an interval of 3 meters from a depth of 3,391 meters in preparation for testing to commence.

Contacts:

This announcement has been posted to:

www.caspiansunrise.com/investors

Qualified Person

Mr. Sunjin Chang, a member of the Society of Petroleum Engineers, has reviewed and approved the technical disclosures in this announcement.

The person responsible for arranging the release of this announcement on behalf of the Company is Clive Carver, Chairman of the Company.

This announcement has been posted to:

www.caspiansunrise.com/investors