[Solar PV: United Solar Holdings Commences Production at 100,000 MT Polysilicon Plant in Oman]

Published: Apr 22, 2026 18:31

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United Solar Holdings (USP) has successfully produced its first polysilicon at its new facility in Oman’s Sohar Port and Free Zone. Backed by a $1.6 billion investment, including support from the IFC and the Oman Investment Authority, the factory is on track to reach full capacity by the end of 2026. As the largest solar-grade polysilicon plant outside of China, the facility is designed to support approximately 40 GW of module production annually, providing a strategic, high-capacity source of material for international solar manufacturers.

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