Bitcoin Mining Activity for the Month of September 2026 and Start of the Share Repurchase Program

08 Oct 2026 08:00 CEST

Bitcoin Mining Activity for the Month of September 2026 and Start of the Share Repurchase Program

• The annualized mining yield for September 2026 is above 16% given Bitcoin's rebound above US$80,000
• A minimum of 25% of mining profits are allocated to the CBI share buyback program which starts on October 12, 2026 at a maximum price of €1 per share
• The maximum amount of the share buyback program is €1 million

Paris, France, October 8, 2026, at 8:00 a.m. CET (CBI, Euronext Growth Paris: FR0014007LWO – ALCBI; OTCQB: CBIPF) – CRYPTO BLOCKCHAIN INDUSTRIES ("CBI") announces that, for the month of September 2026, the annualized mining yield is above 16% given Bitcoin's rebound above US$80,000. At least 25% of mining profits are allocated to the share buyback program which starts on October 12, 2026 at a maximum price of $1 per CBI share.

Mining activity

Measured in US dollars, the annualized return for August 2026 is more than 16%, given Bitcoin's rise above US$80,000. This yield is insufficient and the objective remains to return, thanks to the rise in Bitcoin, to 20% per year.

Measured in Bitcoins, the return for the month is lower than the return of August 2026, again due to limitations in access to the power grid due to occasional restrictions. In September 2026, a technical problem prevented the operation of 150 S21+ servers at the Missouri site and it is likely that these servers will have to be relocated. CBI does not pay electricity for these servers, but they do not generate Bitcoins.

This return is calculated only on a cash basis, by relating the gross margin generated by the activity (Bitcoins received during the month minus the monthly electricity bill) to the amount invested in the servers, all brought back on an annual basis. Accounting depreciations, as well as the resale price of the servers, are not taken into account in these estimates.

This profitability is likely to increase or decrease depending on various criteria, including the purchase price of the servers, the price of Bitcoin which directly influences the value of the commissions received, the cost of electricity, as well as the difficulty rate of the Bitcoin network which measures the complexity of mining a block. These annualized return figures are estimated for a given month, based on a preliminary electricity bill established by Blockware Solutions. In the event that this invoice is subsequently adjusted by Blockware Solutions to take into account the actual consumption, the estimated return is then adjusted retroactively.

Start on October 12, 2026 of the CBI share buyback program on the market at a maximum price of €1 per CBI share

This decision was approved by the Combined Annual General Meeting of September 24, 2026.

This program will start on October 12, 2026 and will be carried out on the market at a maximum price of €1 per CBI share.

The volume will be at least equal to 25% of the profits generated by Bitcoin mining, up to a limit of €1 million.

The programme runs until 31 March 2027. It may be suspended depending on the negative windows linked to the publication of the financial statements as of 30 September 2026.

CBI is issuing a separate statement today detailing the terms and conditions of the program.

Composition of the portfolio of crypto-assets and similar assets, including mining servers

CBI's portfolio of crypto-assets and related assets (see Table) is up from the previous month, given Bitcoin's rise above US$80,000.

BNB Standard Corporation Industries shares rebounded significantly, with a net asset value of around $9.

The portfolio remains large and consists mainly of Bitcoins received in mining operations, the value of which rose during the month, in addition to assets directly related to the production infrastructure, in particular mining servers. It also includes fiat currency reserves that the group plans to deploy in accordance with its capital allocation policy. Tokens created by CBI itself are not subject to an accounting valuation.

It should be remembered that some listed crypto-assets are held for periods of more than twelve months, as part of a long-term investment strategy.

CBI's portfolio of crypto-assets and related assets

Disclaimers

The implementation of CBI's projects, as well as their operating budget and financing plan, remain fundamentally subject to significant uncertainties. Failure to comply with the underlying assumptions could have a material and negative impact on the value of CBI's assets and liabilities. In addition, investing in crypto-assets involves risks related in particular to their intrinsic volatility, which may affect CBI's financial performance. CBI reminds investors that the past performance of crypto-assets is not a guarantee of their future performance. A detailed description of the risks associated with an investment in CBI's securities is available in the Company's financial reports on its website www.cbicorp.io.

CBI shares have a very high volatility. It is not suitable for investors who are not able to bear the loss of their entire investment or large fluctuations in the value of their portfolio.

About CRYPTO BLOCKCHAIN INDUSTRIES SA

CRYPTO BLOCKCHAIN INDUSTRIES ("CBI") is a French company listed on Euronext Growth (compartment E2) and OTC, whose objective is to build the largest possible portfolio of Bitcoins and other crypto-assets by acquiring them at below-market prices via the ACE strategy: buy mainly Bitcoins on the market (ACQUIRE), develop utility tokens and proprietary digital assets that can be sold in exchange for Bitcoins (CREATE – development currently paused), and acquire Bitcoins at a reduced cost through mining operations (EARN) as part of a long-term strategic partnership with Blockware Solutions, a provider specializing in the infrastructure and hosting of Bitcoin mining operations in the United States. For more information, visit www.cbicorp.io.

Contacts

Transmitter – CBI – info@cbicorp.io

Listing sponsor Euronext - Atout Capital - info@atoutcapital.com

OTC Listing Sponsor - Aldebaran Global Advisors - hello@aldebaran-advisors.com

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