Crypto-Blockchain Industries SA

Share Issue/Capital Change • Dec 3, 2025

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CBI continues to implement its ACE strategy during November 2025

• ● In November 2025, measured in Bitcoins, the yield from mining servers increased compared to October 2025 due to improved network efficiency
• ● In the same month, measured in USD, the annualized mining yield remained above 15% with Bitcoin at \$85,000; it was over 30% in October 2025 with Bitcoin at \$115,000
• ● CBI will be able to benefit from a potential rebound in Bitcoin as it has retained Bitcoins in its portfolio

Paris, France, December 3, 2025, at 8:00 a.m. CET (CBI, Euronext Growth Paris: FR0014007LWO - ALCBI; OTCQB: CBIPF) – CRYPTO BLOCKCHAIN INDUSTRIES ("CBI") announces that the yield of its mining servers, measured in Bitcoin for the month of November 2025, has increased compared to October 2025. Measured in USD, the annualized mining yield remains above 15% with Bitcoin at \$85,000. It was over 30% in October 2025 with Bitcoin at \$115,000. CBI has retained the Bitcoins in its portfolio in order to position itself for a potential market rebound.

Preliminary note: As of November 30, 2025, the closing price of Bitcoin was \$91,267, which was used for the end-of-month valuation (see next section). In the analyses below, a Bitcoin value of \$85,000 was used given the very recent market volatility.

In November 2025, CBI observed a gradual improvement in the return generated by its mining servers as measured in Bitcoin. This development is in line with trends observed within the industry, where mature infrastructures are able to maintain consistent performance despite the volatility inherent in the crypto-asset market. It also confirms the operational robustness of CBI's model and its ability to capitalize on a demanding and extremely volatile competitive environment.

Over the same period, measured in USD, the annualized mining yield remains above 15% with a Bitcoin price of \$85,000. It was over 30% in October 2025 with a Bitcoin price of \$115,000. The 15% annual rate is considered attractive in the sector. This level reflects the control of operating costs, the energy efficiency of the infrastructure deployed, and the continuous optimization of mining capacity.

CBI did not sell any Bitcoin during November 2025 except to pay the electricity bill for that month. This strategy, in line with industry practices, aims to maintain exposure to the Bitcoin market in

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anticipation of a potential market rebound. This retention policy reflects a long-term approach to the valuation of its digital assets.

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

CBI's crypto-asset portfolio continues to grow and is now estimated to be worth more than US\$8.8 million, excluding the valuation of the company's own tokens. This growth reflects an accumulation policy aimed at consolidating CBI's presence in the crypto-asset market

The portfolio also includes fiat currency holdings, currently earmarked for the purchase of Bitcoins and valued at their face value.

In line with the ACE (Acquire, Create, Earn) strategy, this initiative aims to provide CBI with additional leverage to accelerate its global growth. It helps to establish the company's long-term credibility within the blockchain ecosystem and strengthen its strategic presence in the North American market.

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November 30, 2025	Quantities	Unit Price	Total Valuation
Main crypto-assets and assimilated
Bitcoin (*)	41.29	\$91,267	\$3,768,414
Bitcoin (Mining rewards)	7.05	\$91,267	\$643,753
Bitcoin (fiat allocated to the purchase of BTC) (**)	4.32	\$91,267	\$393,885
Bitmain Asics & S21 servers (***)	480(***)	n/a	\$2,954,940
BNB (CEA Industries shares - Ticker BNC)	49,505	\$7.20	\$356,436
BNB	2.04	\$888.12	\$1,810
Solana	829	\$137.62	\$114,100
USDT	6,958	\$1.00	\$6,958
Other crypto-assets
COPI	20,196,709	\$0.008	\$157,171
POL	75,576	\$0.135	\$10,173
CHAIN	36,045,254	\$0.013	\$479,402
BRIL	7,340,198	\$0.013	\$98,359
ATRI	30,326,589	\$0.000	\$0
Tokens / Internal CBI Projects
CRYS	493,763,990	Token CBI	Token CBI
FAV	10,408,459,533	Token CBI	Token CBI
LIGHTS (*)	10,669,518,000	Token CBI	Token CBI
KTG (*)	26,500,000	Token CBI	Token CBI
CTS (**)	420,000,000	Token CBI	Token CBI
Total valuation (US\$)			\$8,985,400

Disclaimers

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The completion of CBI's projects, as well as their operating budget and financing plan, remain fundamentally subject to major uncertainties, and failure to achieve the underlying assumptions may have a material and adverse 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 that could have an impact on CBI's financial performance. CBI considers it useful to remember that the past performance of crypto-assets is not a guarantee of future performance. A detailed description of the risks associated with an investment in CBI securities can be found in the Company's financial reports available on CBI's website.

About CRYPTO BLOCKCHAIN INDUSTRIES SA

CRYPTO BLOCKCHAIN INDUSTRIES ("CBI") is a French company listed on Euronext Growth (compartment E2), whose objective is to build the largest possible portfolio of Bitcoins and other crypto-assets by buying them at a below-market price by applying the ACE strategy: ACQUIRE, the purchase mainly of Bitcoins on the market; CREATE, the creation of its own utility tokens in the field of the metaverse (AlphaVerse, Football at AlphaVerse) or that of digital assets backed by real goods (Gemplay, diamonds); EARN, the acquisition of Bitcoin at a reduced cost via mining operations, as part of a long-term strategic partnership with Blockchain Solutions, one of the first Bitcoin miners in the United States. To learn more, visit www.cbicorp.io and www.alphaverse.com.

Contacts

Emetteur – CBI info@cbicorp.io Listing sponsor Euronext - Atout Capital info@atoutcapital.com OTCQB sponsor - Aldebaran Global Advisors hello@aldebaran-ad