Bond Exchange

Press Release

12 December 2025

Argo Blockchain plc

("Argo" or "the Company")

Updates Regarding Full Redemption and Mandatory Exchange of 8.75% Senior Notes due 2026 

The Company announces that on the morning of Friday, December 12, 2025, the Company completed its previously announced ratio change of its ordinary shares ("Shares") to American Depositary Share ("ADSs"), to adjust the ratio from 10:1 to 2,160:1, so that one ADS will represent 2,160 Shares.

Also on the morning of Friday, December 12, 2025, Nasdaq announced on NasdaqTrader.com that the effective date for the Company's previously announced redemption and exchange of its 8.75% senior notes due 2026 (CUSIP: 040126 203) will be December 15, 2025, and that the redemption rate will be 0.835001875 American Depositary Receipts (evidencing ADSs of the Company) per $25.00 in principal amount of Notes (plus accrued and unpaid interest). This redemption rate is expressed on a post-adjustment basis, after giving effect to the ratio change described above. 

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 About Argo:

Argo Blockchain plc (NASDAQ: ARBK) is a blockchain technology company focused on large-scale cryptocurrency mining. With a mining facility in Quebec and offices in the US, Canada, and the UK, Argo's global, sustainable operations are predominantly powered by renewable energy. In 2021, Argo became the first climate positive cryptocurrency mining company, and a signatory to the Crypto Climate Accord. For more information, visit www.argoblockchain.com.

Forward looking statements

This announcement contains "forward-looking statements," which can be identified by words like "may," "will," "likely," "should," "expect," "anticipate," "future," "plan," "believe," "intend," "goal," "seek," "estimate," "project," "continue" and similar expressions. Forward-looking statements are neither historical facts nor assurances of future performance. Instead, they are based only on the Company's current beliefs, expectations and assumptions regarding the future of its business, future plans and strategies, projections, anticipated events and trends, the economy and other future conditions. Because forward-looking statements relate to the future, they are subject to inherent uncertainties, risks and changes in circumstances that are difficult to predict and many of which are outside of the Company's control. The information in this announcement about the Company's anticipated redemption and mandatory exchange of its 2026 Notes are forward-looking statements. Therefore, you should not rely on any of these forward-looking statements. Important factors that could cause the Company's actual results and financial condition to differ materially from those indicated in the forward-looking statements include market conditions; the Company's ability to implement the Restructuring Plan on the expected timeline or at all; the ability to retain the Company's listing on Nasdaq; operational, financial, regulatory, tax and legal risks; assumptions underlying revenue, EBITDA and valuation estimates; and the principal risks and uncertainties described in the risk factors set forth in the Company's Annual Report and Financial Statements and Form 20-F for the year ended 31 December 2024.