Chinese solar firm Tongwei plans US$4bil factory


Tongwei’s new plant is designed to benefit from low raw material costs and will start to serve the market in 2026. — Bloomberg

HONG KONG: Tongwei Co, the world’s largest manufacturer of a key material for solar panels, says it will build a massive new factory in northern China just as the industry struggles with a price war and a looming wave of consolidation.

Tongwei has agreed with local authorities in Ordos, Inner Mongolia, to invest 28 billion yuan in a two-phase project that will eventually have a capacity to produce 500,000 tonnes of industrial silicon and 400,000 tonnes of polysilicon annually, the Chengdu, Sichuan-based company said in a stock exchange filing.

Tongwei’s shares fell as much as 0.8%, while South Korean rival OCI Holdings Co dropped as much as 3%.

The expansion plan comes as solar manufacturers contend with falling profitability. The Chinese market’s accelerated growth in output isn’t being matched by demand, and a polysilicon maker in Inner Mongolia stopped production last week in a possible sign of the effects of severe overcapacity.

Tongwei’s new plant is designed to benefit from low raw material costs and will start to serve the market in 2026, once the sector has recovered from the current round of consolidation, the company said in a separate statement.

Global polysilicon production capacity was 1.1 million tonnes as of late March, according to data compiled by BloombergNEF, while another 2.6 million tonnes of manufacturing capacity had been announced or started construction.

The first phase of Tongwei’s project will deliver about half of its planned capacity by the end of December 2025, according to the filing. The timing of the second phase will depend on market conditions. The facility will be funded from the company’s existing capital and via loans from financial institutions, it said.

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China’s solar sector has entered the worst part of a phase of consolidation that will see the number of manufacturers dwindle over the next 12 to 18 months, one of the top executives at GCL Technology Holdings Ltd, a polysilicon maker, said. About a quarter of polysilicon makers could be forced out of business, he said. — Bloomberg

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