• Rockhopper launched a non-pre-emptive placing at 70 pence per new share to raise about USD 180 million.
• Offer price implies a 4.9% discount to the 30-day volume-weighted average price of 73.58 pence.
• Proceeds earmarked for Sea Lion funding, including a 35% pro rata share of the OSX-1 acquisition.
• Bookbuild expected to stay open until no later than 7:00 a.m. BST on Aug. 28, 2026.
• Admission of the placing shares targeted for 8:00 a.m. on Sep. 2, 2026.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Rockhopper Exploration plc published the original content used to generate this news brief on August 27, 2026, and is solely responsible for the information contained therein.