Quarterly Activities/Appendix 5B Cash Flow Report

• Significant gold-in-soil discovery at Rochefort Prospect, Abbotts North Project
• Completed oversubscribed renounceable entitlement offer, raising $1.84 million
• Board and management changes to strengthen corporate governance and focus on gold and copper exploration

Premier1 Lithium Limited (ASX:PLC) is pleased to provide an update on its activities for the quarter ended 31 December 2025. The key highlights include a significant gold-in-soil discovery at the Rochefort Prospect within the Abbotts North Project in Western Australia, where the anomaly grew to span 350m by 350m with peak values up to 30ppb Au. This built on previous high-grade rock chip results and confirmed the prospect's potential for substantial gold mineralization. The company also completed an oversubscribed renounceable entitlement offer, raising approximately $1.84 million (before costs), followed by a top-up placement of $331,000 to accommodate excess demand. The funds will be used to advance drilling at the Yalgoo and Abbotts North Projects, as well as for geophysical and heritage surveys, and general working capital. During the quarter, Premier1 also implemented a number of board and management changes to strengthen its corporate governance and focus on gold and copper exploration, including the appointments of experienced mining executives Dale Hanna and Simon Phillips as new Non-Executive Directors.