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Chinese solar leader Tongwei plans 28bn yuan factory amid consolidation


TONGWEI, the world’s largest manufacturer of a key material for solar panels, said 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 (S$5.2 billion) in a two-phase project that will eventually have the 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 on Monday (Dec 25).


Tongwei’s shares fell as much as 0.8 per cent on Tuesday, while South Korean rival OCI Holdings dropped as much as 3 per cent.


The expansion plan comes as solar manufacturers contend with falling profitability. The Chinese market’s accelerated growth in output is not 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.


Sector recovery

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.


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

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