Iris Energy Limited announced the acquisition of 1.6 EH/s of Bitmain T21 miners to increase self-mining capacity to 10 EH/s. The Company's 80MW data center expansion at Childress remains on track to be progressively delivered from January 2024 through to Second Quarter 2024, supporting the increase in operating hashrate from 5.6 EH/s to 10 EH/s". 80MW expansion at Childress is on track, supporting the increase in operating Hashrate from 5.6 E H/s to 10 EH /s. Improved overall fleet efficiency from 29.5 J/TH to 24.8 J/TH. The Company's 80MW Data center expansion at Childress remains On track to be progressively delivered fromJanuary 2024 through to Second Quarter 2024.

The Company's 80MW expansion at Childress remains on Track to be progressively delivered from January 2022 through to second quarter 2024, supporting the increase in operational hashrate from 5. 6 EH/s to 10EH/s. Iris Energy's 80MW data center expansion in Childress remains on track to been progressively delivered from January 2024 through the second quarter 2024, supporting the increased in operating hashrate from 5.,6 EH/s to10 EH/s. Iris Energy is acquiring 8,380 new-generation T21 miners from Bitmain Technologies Delaware Limited for a purchase price of $14/TH purchase price of $22.3 million, payable in progressive instalments). The Company's 80 MW data center expansion at Childress continues on track to be progressively delivery from January 2024 through to second quarter 2024, supported the increase in operating hash rate from 5.6 EH /s. Iris Energy's ability to obtain additional capital on commercially reasonable terms and in a timely manner to meet capital needs and facilitate its expansion plans; the terms of any future financing or any refinancing, restructuring or modification to the terms of any future financing, which could require Iris Energy to comply with onerous covenants or restrictions, and its ability to service its debt obligations; These and the terms of any future financing may be incorporated by reference into the Company's capital needs and facilitate its expansion plan; the terms of any future funding or any refinancing, restructuring and modification to the terms of any potential financing, which could require Iris energy to comply with onerous co covenants or restrictions, and the ability to service its debt obligations. These and will be deemed to be incorporated by reference into the registration statements on Form S-8 (File No.

333-261320, 333-265949, 333-269201 and 333-273071) of Iris Energy Limited and to be a part thereof from the date on which this report is filed to the extent not superseded by documents or reports subsequently filed or furnished.