Installation of 4,500 new mining machines

Press release

26 February 2021

Argo Blockchain PLC

('Argo' or 'the Company')

Installation of 4,500 new mining machines

Argo Blockchain, a global leader in cryptocurrency mining (LSE: ARB), is pleased to announce that 4,500 Bitmain Antminer S19 and S19 pro miners Argo agreed to lease from Celsius Network in November 2020 have been installed on time and are now fully operational. This installation represents the final delivery of Antminers under Argo's lease with Celsius Network. The new mining hardware has added approximately 430 petahash to the Company's installed computing power and consumes approximately 15 megawatts ("MW") of electricity. This latest installation highlights the continued focus on efficiency when expanding Argo's mining operations.

Peter Wall, Chief Executive of Argo, said: "We are delighted with the addition of these machines and believe that this installation will help Argo maintain its position at the forefront of mining efficiency."

For further information please visit www.argoblockchain.com or contact:

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.

argoblockchain.com