• Continued safety discipline with zero serious accidents
• Record quarterly ROM and saleable production at South Walker Creek
• Adjustment of upper end of full-year saleable production guidance
• Improved cash position and reduced net debt

Stanmore Resources Ltd reported continued strong safety performance in Q3 2025, maintaining a twelve-month rolling Serious Accident Frequency Rate of zero. The company saw record quarterly ROM coal production and saleable production at its South Walker Creek operation, supported by robust overburden removal and a strong finish to the quarter. The Poitrel mine also delivered a solid quarter, with ROM production up 10% quarter-on-quarter. While the Isaac Plains Complex continued its recovery efforts, the severe weather earlier in the year had a disproportionate impact on this site compared to others in the portfolio, leading to a revision of the full-year saleable production guidance range. Nonetheless, the company's plans are currently tracking around the mid-point of the adjusted guidance range. Stanmore reported an improvement in cash in the third quarter, reaching US$190 million as of 30 September 2025, with net debt finishing the quarter lower at US$90 million. The company maintains a robust balance sheet to continue to withstand the current softness in the metallurgical coal market.

2025 Full-Year Guidance: Saleable Production: 13.8 - 14.2 Mt FOB Cash Cost: US$85 - 90/t Capital Expenditure: US$80 - 90m