CRYPTO BLOCKCHAIN INDUSTRIES : Mining Activity for April 2026

Mining Activity for April 2026

• In April 2026, measured in bitcoins, the performance of the servers is higher

than that of March 2026, which was impacted by the shutdown of 185 servers

located in North Dakota over a few days

• With the price of Bitcoin in the region of US$76,000, the annualized return

for April 2026 is above 11% in a bull market context

• This improved yield reinforces CBI's strategy, the objective being to return

to an annualized return of 20% thanks to the rise of Bitcoin

Paris, France, May 6, 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 April 2026, the yield of mining servers is up compared to the previous month,

which was impacted by the shutdown of 185 servers located in North Dakota over a few days.

With Bitcoin up to around US$76,000, the annualized return is just over 11%, an improvement

from the 8% recorded in March 2026 with Bitcoin at around US$70,000. This favorable context

reinforces CBI's strategy, the objective being to return to an annualized return of 20% thanks

to the rise of Bitcoin.

In April 2026, Crypto Blockchain Industries (CBI) benefited from the return of its Bitcoin mining infrastructure

to near full capacity. Measured in Bitcoin, server production has risen again compared to March 2026, thanks

to the complete normalization of the situation for the 185 servers in North Dakota that had been affected by a

power outage for a few days the previous month.

Measured in US$, the annualized return is more than 11% for a Bitcoin of around US$76,000, up from 8% in

March 2026 with a Bitcoin of around US$70,000. This return is calculated 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 of which is reduced on an annual basis. This performance reflects the ongoing

control of operating costs, the energy efficiency of the infrastructure deployed, and the effectiveness of

optimization measures implemented across mining operations. The resale price of the servers is not taken into

account in these estimates.

This favourable context reinforces CBI's strategy, the objective being to return to an annualised return of 20%

thanks to the rise in Bitcoin.

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. If this invoice is subsequently adjusted by Blockware Solutions to take

into account the actual consumption, the estimated yield is then adjusted retroactively.

1Composition of the portfolio of crypto-assets and similar assets, including mining servers

CBI's portfolio of crypto-assets and related assets recorded an upward performance compared to the previous

month, driven by the rise in the price of Bitcoin to around US$76,000 and the return to near full capacity of the

entire mining server fleet.

The portfolio remains a substantial size, guided by a sustained accumulation objective. It consists mainly of

Bitcoins received as part of mining operations, the value of which benefited from the price appreciation in April

2026, 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, a strategy that is now supported by the upward momentum of the

market.