Cornish Metals: ADMISSION TO TRADING OF US$210 MILLION SENIOR SECURED BONDS ON NORDIC ABM

ADMISSION TO TRADING OF US$210 MILLION SENIOR SECURED BONDS ON NORDIC ABM

5 August 2026

Reference is made to the announcement made by Cornish Metals plc (AIM: TIN) (“Cornish Metals” or the “Company”) on 7 May 2026 regarding the successful placement of US$210 million of six-year, senior secured bonds carrying a coupon of 13.5 per cent. per annum (the “Bonds”).

Euronext Oslo Børs has approved the admission to trading of the Bonds on Nordic ABM. The first day of trading in the Bonds on Nordic ABM will be today, 5 August 2026.

ABOUT CORNISH METALS

Cornish Metals is a mineral exploration and development company that is advancing the South Crofty critical mineral project towards production. South Crofty:

is a historical underground tin mine located in Cornwall, United Kingdom and benefits from existing mine infrastructure including multiple shafts that can be used for future operations;is the highest grade known tin Mineral Resource not in production with significant near-mine and regional Mineral Resource potential;is permitted to commence underground mining (valid to 2071), construct a new processing facility and for all necessary site infrastructure;is expected to produce approximately 4,700 tonnes of tin-in-concentrate annually in the first five years of full production at lowest-quartile all-in sustaining costs over an initial 14-year mine life;will be a low environmental impact underground mine with zero surface tailings;would be potentially the first primary producer of tin in Europe or North America. Tin is a Critical Mineral as defined by the UK, American, and Canadian governments as it is used in almost all electronic devices and electrical infrastructure. Approximately two-thirds of the tin mined today comes from China, Myanmar and Indonesia;benefits from strong local community, regional and national government support with a growing team of skilled people, local to Cornwall, and could generate over 300 direct jobs;is an opportunity for a secure domestic supply of tin in the UK supporting a low carbon economy.

ENDS

Engage with us directly at our investor hub. Sign up at: https://investors.cornishmetals.com/link/r6w9kP

For additional information please contact:

Cornish Metals	Fawzi HananoEmily Allhusen	[email protected]@cornishmetals.comTel: +44 1209 715 777
SP Angel Corporate Finance LLP(Nominated Adviser)	Charlie BouveratAdam CowlEwan Leggat	Tel: +44 203 470 0470
Berenberg(Joint Broker)	Jennifer LeeIvan Briechle	Tel: +44 20 3753 3040
Peel Hunt(Joint Broker)	Ross AllisterDavid McKeown	Tel: +44 20 7418 8900
BlytheRay(Financial PR)	Tim BlytheMegan RaySaid Izagaren	[email protected]: +44 207 138 3204