HOCH-1 Production Testing Update- Stable Gas Flow

• Stable gas flow of 2.7 million cubic feet per day recorded
• Testing of up to eight gas reservoirs in the Hall and Base Hall formations
• Zone 1 Basin Floor Fan sand body shows potential for commercial production

ADX Energy Ltd (ASX:ADX) has successfully completed the initial phase of production testing for its HOCH-1 shallow gas exploration well in Upper Austria. The well, which was drilled, cased, and completed on May 15, 2026, encountered up to eight gas reservoirs within the Hall and Base Hall formations. The first phase of testing, focusing on the upper Hall formation, recorded a stable gas flow rate of 2.7 million cubic feet per day over an 11-hour period, with a stable flowing well head pressure of 870 psi. The well has been shut in to record a pressure build-up over approximately two weeks to determine the connected gas volume of the test Zone 1 Basin Floor Fan sand body. ADX is the operator and holds a 50% economic interest in the HOCH prospect. Two additional gas prospects are fully permitted for drilling in 2026.