31 July 2025

London BTC Company Limited

("BTC.L" or "the Company")

(BTC:L and VINZF:US)

BTC.L's North American Bitcoin Mining Operations Surpass 1,000 Miners

London, New York, July 31, 2025, London BTC Company Limited, the London Stock Exchange Main Market-listed bitcoin treasury company with active mining operations across the United States and Canada, is pleased to announce that, for the first time, it has more than 1,000 operational Application-Specific Integrated Circuit ("ASIC") Bitcoin miners operating in North America.

Increasing the Bitcoin mining fleet in North America is an integral part of the Company's stated business strategy. Bitcoin is core to our business, as a significant number of our costs are Bitcoin denominated.

Within the overall fleet, the addition of another 385 Bitcoin miners at our Megawatt hosted facility in Indiana, takes our ASIC miner fleet there to 525 operational miners, our largest operation in a single State in the USA. Along with its other miners currently hashing in Nebraska, Iowa and Texas in the USA and Goose Bay in Labrador, Canada.

As of yesterday, the Company has an operational fleet of 1,005 Bitcoin miners operating at a 94% uptime, 100% efficiency and hashing a total of 100 petahash per second ("PH/s").

Hewie Rattray, CEO of London BTC Company Limited, comments

"Crossing the 1,000 miner mark is a major operational milestone for us. Bitcoin mining is not just about production; it's also about building a Bitcoin-denominated cost base and earning native yield on our treasury. As a public company, we view mining as a strategic tool that strengthens our balance sheet, deepens our exposure to Bitcoin, and aligns us with the long-term incentives of the Bitcoin network. The Company is in a strong financial position, with no debt and holding a considerable amount of Bitcoin in treasury. Our BVI domiciled status should stand us in a good position tax wise."

The directors of London BTC Company Limited accept responsibility for this announcement.

For further information please contact:

About London BTC Company Limited

The Company's primary listing is in London (United Kingdom) on the London Stock Exchange under the ticker "BTC.L" and trades in the USA on the US OTCQB under the ticker "VINZF". The Company is building up a strategic bitcoin holding through acquiring bitcoin as a treasury and currency management tool and by adding bitcoin through its own bitcoin mining operations in North America. The Company currently has bitcoin miners installed in Multiple third-party facilities in Indiana, Iowa, Nebraska and Texas in the USA and in Labrador (Canada).

This announcement contains information which, prior to its disclosure, was inside information as stipulated under Regulation 11 of the Market Abuse (Amendment) (EU Exit) Regulations 2019/310 (as amended).