IREN delivers Horizon 1 to Microsoft, gains NVIDIA Exemplar Cloud status on GB300 NVL72

IREN delivered Horizon 1 to Microsoft and achieved NVIDIA Exemplar Cloud status on the GB300 NVL72.

Key Highlights:

• Horizon 1 has been delivered to and accepted by Microsoft under IREN’s cloud services program.
• IREN achieved NVIDIA Exemplar Cloud status following NVIDIA testing of GB300 NVL72 at Horizon 1.
• Horizon 1 is the first of four 50MW direct-to-chip liquid-cooled AI deployments for Microsoft in 2026.
• Deployment underscores IREN’s vertically integrated model enabling rapid end-to-end design, engineering and construction.
• IREN targets expansion to 480MW gross AI Cloud capacity in 2026 and 1.2GW gross in 2027.

Original SEC Filing: IREN Ltd [ IREN ] – 8-K – Aug. 13, 2026