About the PAK Lithium Project
The PAK Lithium Project is a fully integrated critical minerals initiative in Ontario, developing a high-grade, large scale lithium resource. Operated as a joint venture between Frontier (92.5%) and Mitsubishi Corporation (7.5%), the project is advancing in parallel with a mine and mill, north of Red Lake, Ontario and a downstream lithium conversion facility in Thunder Bay, Ontario, which are both key to supporting a secure domestic lithium supply for the clean energy transition. A 2025 Mine and Mill Feasibility Study (FS), prepared by DRA Global Limited and entitled National Instrument 43-101 Technical Report FS PAK Lithium Project, Mine and Mill, outlines a 31-year Project life with an after-tax net present value of $932 million at an 8% discount rate and an after-tax internal rate of return of 17.9%.These results have been disclosed in the Company’s press release dated May 28, 2025, and the accompanying technical report was filed on SEDAR+ (www.sedarplus.ca) on July 9, 2025.