Tertiary Minerals (TYM) investor relations material

Strategic project portfolio

• Holds 10 projects across Zambia, the US (Nevada), and Sweden, targeting copper, silver, gold, zinc, cobalt, and fluorspar in stable, mining-friendly jurisdictions.

• Employs a project generator model, leveraging joint ventures with partners like First Quantum Minerals and KoBold Metals to fund and advance exploration while preserving capital.

• JV partners have invested approximately $5 million since Q2 2024.

Key operational highlights

• Mushima North (Zambia): 1,597m drilled over two phases, with best intersections of 97m at 56 g/t Ag & 0.43% Cu, including 13m at 77 g/t Ag & 1.46% Cu; working towards a maiden mineral resource.

• Konkola West (Zambia): 4,153m drilled in two holes, funded by KoBold Metals; project advancing to Stage 2 with formation of a new JV company.

• Mukai (Zambia): Initial drilling completed; FQM conducting due diligence for potential JV advancement.

• Storuman (Sweden): Mining permit appeal ongoing; project has a JORC resource of 25 Mt @ 10.28% CaF2 and positive scoping study economics.

• US projects (Nevada): Four projects at drill-ready or early drilling stage, targeting copper, gold, and silver.

Financial and shareholder performance

• Share price increased 100% over 6 months and ~80% over 12 months.

• Two major shareholders hold a combined stake of over 10%.

• Market capitalization remains below £5 million, presenting an opportunistic entry point.