PVTIME – Solar polysilicon manufacturer United Solar Holding has secured over $900 million in funding for its polysilicon facility in Oman. With this financing finalised, the company’s 100,000-tonne polysilicon plant is set to commence production in the first quarter of 2026. Once operating at full capacity, the facility will produce enough polysilicon annually to support the manufacture of around 40GW of solar modules, according to United Solar.
Sam Zhang, founder and chairman of United Solar, described this as a transformative milestone for the company and the global solar industry. With backing from the Oman Investment Authority (OIA) and the International Finance Corporation (IFC), he explained that the firm is developing essential infrastructure to bolster the global solar supply chain and ensure that manufacturers have dependable access to top-quality, traceable polysilicon that meets the world’s strictest standards. Zhang, also known as Zhang Longgen, previously served as CFO at JinkoSolar and vice chairman at Daqo.
The total investment in the 100,000-tonne polysilicon plant is $1.6 billion. Prior to this latest funding round, the World Bank provided $250 million in financing in August 2025. Meanwhile, Future Fund Oman (FFO), which is Oman’s sovereign wealth fund and United Solar’s largest shareholder, injected 60 million Omani rials (approximately $155 million) in October 2024. FFO’s total investment in the company now approaches $260 million. Additionally, Oman Arab Bank has signed a $220 million (around RMB 1.413 billion) financing agreement with United Solar.
Construction of the plant began in March 2024 and is expected to be completed in time for its operational launch this quarter, marking the end of nearly two years of development and commissioning of the facility.
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