The development, revealed by the Korean ambassador to China in his weekly news briefing, marks a further step in a growing trade row between China and other markets over clean-energy products.

According to the Korean embassy, a notice from Mofcom states that it has started to carry out inquiries into claims of dumping of Korean polysilicon into China.

The ambassador advised that after accepting such a case, discussions usually take around one month before a decision is made on whether to start a formal investigation.

“The