TYM Tertiary Minerals Plc

25 February 2025

Tertiary Minerals plc ("Tertiary" or the "Company")

Appointment of Managing Director

Tertiary Minerals plc is pleased to announce the appointment of Dr. Richard Belcher as the new Managing Director of the Company. Dr. Belcher brings a wealth of knowledge and experience in the mineral resources sector and will commence his role with the Company on 7^th March 2025, the day following the day of the Annual General Meeting.

Dr. Belcher brings over 22 years post PhD geological experience working as a contractor and consulting geologist on a variety of commodities from early stage through to resource definition, with a strong emphasis on Africa and with junior explorers. Most recently he held the position of VP Exploration with ANS Exploration Corp (a junior explorer with a focus on NE Africa and Arabia). He also held the position of Senior Consulting Geologist at Altus Strategies PLC, now Elemental Altus Royalties Corp. (a prospect generator and royalty company with a focus on West and East Africa). His extensive field experience includes significant work in Zambia and he was based in South Africa for over a decade.

Dr. Belcher has a BSc Honours (First Class) in Mineral Exploration from Cardiff University and a PhD in Geology from Stellenbosch University, South Africa. More recently he was awarded an MSc Finance (with distinction) from Leicester University. He is a Fellow of the Society of Economic Geologists (SEG) and a Chartered (CGeol) Fellow of the Geological Society of London.

Incoming Managing Director, Richard Belcher commented:

"I am thrilled to be joining Tertiary at this exciting time with a portfolio of explorations assets across both the copper and precious metal sectors in several jurisdictions and with agreements with KoBold Metals and First Quantum Minerals on two of the Zambian projects.

I look forward to leading the team and executing the Company strategy to deliver shareholder value."

The following information is disclosed pursuant to Rule 17 and Schedule Two paragraph (g) of the AIM Rules for Companies in relation to Dr. Richard William Belcher, aged 48:

Dr. Belcher currently holds 873,362 shares, representing 0.024% of the Company's issued Ordinary Share capital and also holds, 2,000,000 warrants issued at 0.1225p per share.

Further Information: