Puteaux, May 9, 2025 – The Blockchain Group (ISIN: FR0011053636, ticker: ALTBG), listed on Euronext Growth Paris and recognized as Europe’s first Bitcoin Treasury Company with subsidiaries specializing in Data Intelligence, AI, and decentralized technology consulting and development, is advancing its Bitcoin Treasury Company strategy. On May 7, 2025, the Company’s Board of Directors approved a capital increase of €9, 888, 036. 63 at a subscription price of €1. 0932 per share. This move aims to reinforce the Company’s Bitcoin accumulation efforts while further developing its subsidiaries’ operational activities. Details of the strategy, focused on increasing the company’s bitcoin holdings per fully diluted share over time, were provided in a presentation available on the Company’s website since April 30, 2025: https://www. theblockchain-group. com/investor/news-financial-information/. The capital increase is conducted in accordance with Article L. 411-2 1° of the French Monetary and Financial Code, based on the delegated authority granted by shareholders at the February 21, 2025 meeting (3rd resolution). It involves issuing 9, 045, 039 new ordinary shares without shareholders’ preemptive rights, priced at €1. 0932 per share including a premium. This premium represents approximately 61. 69% above the weighted average of ALTBG’s last twenty closing prices prior to the Board’s decision, resulting in a total subscription amount of €9, 888, 036. 63.

The waiver of preemptive rights was granted to specified participants as per defined proportions. Proceeds from this capital increase will bolster the Company’s core objective of Bitcoin accumulation while supporting ongoing subsidiary development. Post-increase, The Blockchain Group’s share capital totals €4, 097, 179. 52, divided into 102, 429, 488 ordinary shares of €0. 04 nominal value each (excluding the exercise of outstanding 2025-01 Share Subscription Warrants – “BSA 2025-01”). Due to recent share price volatility, the set price represents a 16. 99% discount relative to the closing price on May 9, 2025. The settlement and delivery of the new shares and their admission to trading on Euronext Growth Paris are anticipated upon final completion of the capital increase. Per Article 211-3 of the French Financial Markets Authority (AMF) General Regulation, this issuance does not require an AMF-approved prospectus. The capital increase’s effect on the Company’s share capital distribution has been calculated, including all convertible bonds (“OCA”) issued March 4, 2025, and full exercise of the 2025-01 warrants granted April 11, 2025, reflecting the fully diluted basis as of May 9, 2025. The equity per share calculations consider the Company’s equity as of December 31, 2024, adjusted for proceeds from OCA Tranche 1 and warrant exercises. * * * Disclaimer This press release is neither an offer to sell nor a solicitation to purchase securities in any jurisdiction. It must not be considered an offer, solicitation, or sale where such actions are unlawful without proper registration or certification under local laws.