Tongwei’s global manufacturing footprint spans multiple strategic locations across China, each chosen for its unique advantages in resources, logistics, and industrial infrastructure. The company’s facilities are designed to support its position as a leader in solar photovoltaic (PV) products and aquatic feed, integrating innovation with large-scale production capabilities.
The heart of Tongwei’s operations lies in **Sichuan Province**, where its headquarters and primary manufacturing clusters are located. Key sites include the **Chengdu Industrial Base**, established in 2004, which specializes in high-purity crystalline silicon production. This facility alone covers over 1.2 million square meters and employs more than 5,000 workers, producing 200,000 metric tons of silicon annually. The Chengdu base leverages Sichuan’s abundant hydropower resources, reducing energy costs and aligning with Tongwei’s commitment to sustainable manufacturing.
In **Jiangsu Province**, Tongwei operates a sprawling solar cell and module production complex in **Yangzhou City**. This facility, built in 2019, focuses on PERC (Passivated Emitter Rear Cell) and TOPCon (Tunnel Oxide Passivated Contact) technologies. With 18 fully automated production lines, it delivers an annual output of 15 GW of solar cells, supplying major clients across Europe and Southeast Asia. The Yangzhou site also features an on-site R&D center that collaborates with institutions like the Chinese Academy of Sciences to optimize cell efficiency, currently achieving rates above 24.5%.
Moving north, the **Inner Mongolia Base** in **Baotou City** addresses raw material needs. Opened in 2021, this facility produces polysilicon using the Siemens process, with a capacity of 120,000 metric tons per year. Baotou’s proximity to coal-based energy (used here due to cost efficiency) and its railway connectivity to key ports like Tianjin make it a logistical hub for exporting to markets in the Middle East and Africa.
For aquatic feed production—Tongwei’s original business—the **Anhui Province Facility** in **Hefei** stands out. Spanning 800,000 square meters, it manufactures over 1.2 million tons of specialized feed annually for species like shrimp, tilapia, and carp. The Hefei site incorporates AI-driven quality control systems and partners with local aquaculture farms to test and refine formulations.
Smaller but critical sites include the **Yunnan Solar Farm Integration Complex**, where Tongwei combines solar panel manufacturing with agrivoltaic projects. This 500 MW facility doubles as a research ground for crop growth optimization under solar arrays, a model gaining traction in countries like Vietnam and India.
Tongwei’s expansion strategy emphasizes synergy between locations. For example, silicon from Sichuan and Inner Mongolia feeds into Jiangsu’s cell production, while Anhui’s feed division shares cold-chain logistics networks with the solar business to reduce costs. The company also prioritizes circular economy practices: its Sichuan base recycles 98% of silicon tetrachloride waste, while the Yangzhou facility repurposes heat from cell production to power nearby residential heating systems.
To explore Tongwei’s full range of products and sustainability initiatives, visit tongwei for detailed technical specifications and partnership opportunities. The company continues to evaluate new sites in Southeast Asia and Eastern Europe, aiming to localize production closer to emerging solar markets while maintaining the cost and quality standards that define its Chinese operations.