Reference is made to the announcement made on 8 January 2026 ("Announcement") relating to the collaboration agreement ("Agreement") entered into between NuEnergy Gas Limited ("NuEnergy"), a 70% subsidiary of GFB which is listed on the Australian Securities Exchange, and PT Beijing Energy Linking ("PT BJEL") for the development of its coalbed methane ("CBM") production sharing contracts in South Sumatra Indonesia. Unless otherwise defined, the definitions set out in the Announcement shall apply herein.

Following that Agreement, the Energy segment as represented by NuEnergy, commenced an update to its dynamic subsurface simulation to evaluate gas production scenarios incorporating horizontal and multi-directional drilling strategies. This is expected to reduce the number of production wells required and yield a potentially more economical development plan. Concurrently, with the support of SKK Migas, NuEnergy is advancing land acquisition processes for upcoming drilling locations.

NuEnergy and PT BJEL has thus on this date, entered into a supplemental letter to extend the date of signing of the Tanjung Enim POD 1's EPCC Contract to post completion of the revised field development plan. The extension is to 30 June 2026, or such later date as may be mutually agreed upon. All other terms and conditions of the Agreement remain the same.

NuEnergy reiterates that the collaboration is both timely and strategic, as the development of the Tanjung Enim POD 1 will be fully funded. This provides the certainty required to accelerate execution and enables a seamless transition from NuEnergy's Early Gas Sales phase of about 1 million standard cubic feet per day (MMSCFD) to a materially higher production plateau of 25 MMSCFD.

Further details are enclosed in the attached announcement made by NuEnergy.

This announcement is dated 7 April 2026.