Press release

18 November 2021

Argo Blockchain PLC

("Argo" or "the Company")

Argo Announces Closing of 8.75% Senior Notes due 2026 Offering

Argo Blockchain, a global leader in cryptocurrency mining (LSE: ARB; NASDAQ: ARBK), announced the closing of its SEC-registered public offering of $40.0 million aggregate principal amount of 8.75% Senior Notes due 2026 (the "Notes").

The Notes are expected to begin trading on Nasdaq under the symbol "ARBL" following the closing date of this offering.

The offering resulted in net proceeds of approximately $38.6 million after deducting underwriting discounts and commission, but before expenses and fees. The Company intends to use the net proceeds from this offering for general corporate purposes, the construction of, and purchase of mining machines for, its Texas cryptocurrency mining facility and potentially acquisitions of, or investments in, complementary businesses in the cryptocurrency and blockchain technology industries.

This press release does not constitute an offer to sell or a solicitation of an offer to buy the securities described herein, nor shall there be any sale of these securities in any state or other jurisdiction in which such an offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. The Notes may only be offered and sold under the Company's registration statement on Form F-1, as amended, which has been filed with the Securities and Exchange Commission ("SEC") and declared effective on November 12, 2021. A copy of the registration statement is available on the SEC's website at www.sec.gov. When available, copies of the prospectus related to the offering may be obtained from the offices of B. Riley Securities, Inc. at 1300 North 17th Street, Suite 1400, Arlington, VA 22209, by calling (703) 312‐9580 or by emailing [email protected].

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About Argo:

Argo Blockchain plc is a global leader in cryptocurrency mining with one of the largest and most efficient operations powered by clean energy. The Company is headquartered in London, UK and its shares are listed on the Main Market of the London Stock Exchange under the ticker: ARB and on the Nasdaq Global Select Market in the United States under the ticker: ARBK.