What United Solar Polysilicon does

United Solar Polysilicon (FZC) SPC, a subsidiary of United Solar Holding Inc., is a private polysilicon manufacturer operating one of the world's largest and most technologically advanced single-site polysilicon plants in the Sohar Freezone, North Al Batinah Governorate, Oman. The company was registered in May 2023, commenced commercial operations on February 5, 2026, and has assembled a $1.6 billion greenfield facility with planned annual production capacity of 100,000 metric tons of ultra-high purity polysilicon (up to 99.9999999% / 9N purity), sufficient to support approximately 40 GW of downstream solar module manufacturing. Core technology combines Chemical Vapor Deposition (CVD), distillation and adsorption purification, fluidized bed reactor (FBR) hydrochlorination, an original large-rod multi-core furnace architecture, 90% argon and hydrogen recovery systems, zero-liquid-discharge water recycling, and end-to-end AI-driven automation with IoT-enabled monitoring.

The company's revenue model is B2B manufacturing of commodity-grade polysilicon sold under long-term offtake agreements to large-scale solar module manufacturers, with the only publicly disclosed customer being Waaree Solar Americas, which simultaneously made a $30 million strategic equity investment alongside its offtake commitment. The company does not publicly disclose pricing; its go-to-market emphasizes geopolitical diversification away from China (which produces over 90% of global polysilicon), full FEOC compliance for U.S. and allied markets, traceability, and cost parity with established Asian producers. Future Fund Oman (Oman Investment Authority) is the largest shareholder with approximately $260 million invested, and the broader capital stack includes the IFC ($480M), Sohar International Bank, Oman Arab Bank, Bank Dhofar, OPEC Fund, IDG Capital, and EWTP Arabia Capital. The company is expanding downstream into solar power generation via a 700 MW joint venture with OQ Alternative Energy.

Name

United Solar Polysilicon

Legal name

United Solar Polysilicon (FZC) SPC

Website

https://unitedsolarholding.com

Company type

Private

Founded year

2023

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

United Solar Polysilicon is a private Oman-based manufacturer of ultra-high purity (9N) polysilicon for the solar PV industry, operating a $1.6 billion, 100,000-ton-per-year facility in Sohar Freezone that supplies large-scale solar module manufacturers under long-term offtake agreements, with FEOC-compliant positioning for U.S. and allied markets.

Ownership category

akta.pro rank

Product category

Solar Polysilicon Manufacturing

NAICS

Solar Electric Power Generation (221114)

akta.pro primary industry

Solar PV Module Manufacturing (Cells, Modules, Thin-Film) (EUAMABAD)

Keywords

• Solar polysilicon manufacturing
• Photovoltaic supply chain
• High-purity silicon production
• Solar PV materials
• Clean energy manufacturing

Headquarters

HQ city

Sohar

HQ country

Oman

HQ region

Middle East

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Operations, Infrastructure, Technology or R&D, Personnel, Supply Chain, Marketing or Sales

Revenue model

1. Polysilicon Sales: Production and sale of ultra-high purity polysilicon for solar PV industry. The facility produces 100,000 metric tons annually, sufficient to support approximately 40 GW of solar module production. Expected annual production value of $2 billion.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

United Solar Polysilicon operates one of the world's most technologically advanced polysilicon manufacturing facilities in the Sohar Freezone, Oman, producing ultra-high purity polysilicon (up to 99.9999999% / 9N purity) at an annual capacity of 100,000 metric tons — sufficient to support approximately 40 GW of solar module production annually. The company also offers wash-free monocrystalline silicon pieces (PIMM) in small (5–60 mm) and large (40–150 mm) formats for direct use in photovoltaic cell production, and is co-developing a 700 MW photovoltaic power station with OQ Alternative Energy.

Product overview

United Solar Polysilicon operates a single-product core manufacturing platform focused on ultra-high purity polysilicon (up to 99.9999999% purity) at its Sohar Freezone facility in Oman, with an annual production capacity of 100,000 metric tons — sufficient to support approximately 40 GW of solar module production. The polysilicon is offered as finished product as well as in processed wash-free monocrystalline forms (Monocrystalline Small Pieces, 5–60 mm; Monocrystalline Large Pieces, 40–150 mm) suitable for direct use in photovoltaic cell production. The company also has a strategic partnership to jointly develop a 700 MW photovoltaic power station, representing an adjacent expansion into downstream power generation.

Differentiator

Problem solved

Functional benefit

Products and services

• United Solar Polysilicon Ultra-high purity polysilicon (up to 99.9999999% / 9N purity) produced at the Sohar Freezone facility with an annual production capacity of 100,000 metric tons, supporting approximately 40 GW of solar module production annually. Manufactured using advanced Chemical Vapor Deposition (CVD) and distillation+adsorption purification technologies. Sold B2B to large solar module manufacturers through long-term offtake agreements.
• Monocrystalline Small Pieces (PIMM) Wash-free monocrystalline silicon material with linear dimensions between 5–60 mm, designed for direct use in photovoltaic cell production processes, reducing costs and increasing efficiency. Targeted at solar cell manufacturers.
• Monocrystalline Large Pieces (PIMM) Wash-free monocrystalline silicon material with linear dimensions between 40–150 mm, offering a flawless surface free of abnormalities and non-silicon contaminants, ready for direct furnace use in solar cell manufacturing. Targeted at solar cell manufacturers.
• 700MW Photovoltaic Power Station A 700-megawatt photovoltaic power station being jointly developed with OQ Alternative Energy in Oman, representing a strategic expansion into downstream solar power generation alongside the company's polysilicon production operations. Targeted at the Omani energy market.

Quantifiable outcome

• 40 GW of solar module production supported annually
• +3 more outcomes

Named customers1 record

Segments2 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

Four partnerships are on record, tiered major and supporting.

• OQ Alternative EnergymajorStrategic or Co-development Partner · 12 May 2025Strategic partnership to jointly develop a 700-megawatt photovoltaic power station in Oman. This landmark project marks a significant milestone in the region's transition to sustainable energy and supports Oman's national renewable energy goals.
• Carbon Block (Beijing) Technology Co., Ltd.supportingStrategic or Co-development Partner · 27 November 2024Strategic partnership for carbon footprint management project. Carbon Block provides technical support to help United Solar build a comprehensive carbon management system, enabling precise monitoring and optimization of carbon emissions from production processes.
• Shuangliang HydrogensupportingTechnology or IntegrationChinese equipment supplier providing key production technology for the polysilicon facility, linking PV supply chains across Europe, Africa, and Asia.
• JA SolarsupportingStrategic or Co-development PartnerJA Solar is developing a six-gigawatt solar cell manufacturing complex in SOHAR Port and Free Zone with $442 million investment. Part of the broader solar manufacturing ecosystem at Sohar alongside United Solar's polysilicon facility.

Scale indicators10 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• GCL Technology Holdings: GCL Tech is one of the world's largest polysilicon and silicon wafer producers, headquartered in China. It competes directly with United Solar across the polysilicon value chain and is a major Chinese incumbent the company is positioning against.
• Daqo New Energy: Daqo is a major Chinese high-purity polysilicon producer with large-scale manufacturing operations. It is a direct competitor supplying solar-grade polysilicon to global module manufacturers, the same customer base United Solar is targeting.
• REC Silicon: REC Silicon is a Norway-headquartered polysilicon producer with U.S. (Washington state) manufacturing assets. It is the most direct non-Chinese competitor and is competing for the same FEOC-compliant customer base United Solar is targeting.
• Tokuyama: Tokuyama is a Japanese chemical company producing high-purity polycrystalline silicon for semiconductor and solar applications. Comparable non-Chinese polysilicon producer with similar customer and regulatory positioning.
• Hemlock Semiconductor: Hemlock Semiconductor is a U.S.-based polysilicon producer serving both semiconductor and solar markets. It is a directly comparable Western polysilicon producer competing for the same FEOC-aligned customer base.
• Wacker Chemie: Wacker Chemie is a German chemical company producing high-purity polysilicon for both semiconductor and solar applications from European facilities. Like United Solar, it serves Western customers seeking non-Chinese, traceable polysilicon supply.
• Tongwei: Tongwei is the world's largest polysilicon producer, with multi-hundred-thousand-tonne capacity and integrated solar cell/module operations in China. It is the most direct head-to-head competitor for United Solar in merchant solar-grade polysilicon and sets the global cost benchmark United Solar must meet.
• Xinte Energy: Xinte Energy is a leading Chinese polysilicon producer with significant production capacity and a vertically integrated solar supply chain presence. Direct peer competing for tier-1 module manufacturer offtake agreements.
• OCI Global: OCI Global operated polysilicon production in Malaysia and previously the U.S. (sold to Hanwha). It is a comparable non-Chinese merchant polysilicon producer and a relevant reference point for United Solar's go-to-market strategy.

Broad incumbents

• LONGi Green Energy: LONGi is the world's largest solar wafer and module manufacturer, headquartered in China. As a major downstream buyer of polysilicon, it is both a potential customer and a vertically integrated competitor whose captive polysilicon sourcing affects United Solar's addressable market.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Customer concentration

• Facebookfacebook.com/unitedsolarholding
• LinkedInlinkedin.com/company/united-solar-polysilicon-fzc-spc

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds14 records

Investors13 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about United Solar Polysilicon