China has blasted US tariffs on solar panel imports, filing a complaint at the World Trade Organization in the latest salvo of the trade battle between the world's two economic giants. US President Donald Trump approved steep tariffs on solar panel imports in January to protect US producers, triggering an outcry from China, South Korea and even protests from the US solar industry.
China's commerce ministry accused Washington of erecting trade barriers while subsidising its domestic industry.
"While taking protectionist measures against imported photovoltaic products, the US provided subsidies to domestically produced photovoltaics and other renewable energy products," the ministry said in a statement.
China lodged its challenge at the WTO on Tuesday, the statement said.
The US subsidies have given an unfair advantage to domestic companies and "damaged the legitimate rights and interests of China's renewable energy companies," it said.
Beijing said the US measures are suspected of violating trade rules and that it would turn to the WTO's dispute resolution mechanism to protect its interests.
Trump's tariffs were not popular with the US solar industry, which claimed the rising cost of imports would cause the loss of thousands of jobs.