• Lingbao Gold to acquire 50% strategic interest in Simberi Gold Project for A$370 million
• Kumul Mineral Holdings to acquire 20% interest for A$100 million
• St Barbara fully funded for its share of Simberi Expansion Project

St Barbara Limited ('St Barbara') has signed agreements with Lingbao Gold Group ('Lingbao') and Kumul Mineral Holdings Ltd ('Kumul') to fund the Simberi Expansion Project. Under the agreements, Lingbao will pay A$370 million in cash to acquire a 50% interest in St Barbara Mining Pty Ltd ('SBML'), a wholly owned subsidiary of St Barbara which will own 80% of the Simberi Gold Project. Concurrently, Kumul will acquire a 20% interest in the Simberi Gold Project for A$100 million, with SBML retaining the remaining 80% interest. The transaction values the Simberi Gold Project at A$800 million, representing a 31% premium to St Barbara's current market capitalization. The agreements will fully fund St Barbara's share of the expected capital costs for the Simberi Expansion Project, significantly de-risking the development and accelerating the timeline to a final investment decision and expanded production. The strategic partnership with Lingbao, a major Chinese gold producer, and the participation of Kumul, demonstrating PNG government support, further de-risk the project. St Barbara will receive A$370 million in cash from the transaction, which will be used to fund its share of the Simberi Expansion and to advance its Atlantic assets in Canada.

Lingbao's attributable gold production for 2025 is projected to be approximately 200,000 ounces, excluding the gold produced by its smelter.