The International Trade Commission has paved the way for the Trump administration to impose steep tariffs on solar panel makers in southeast Asia, with duties hitting as high as 3,500%, in the United States’s latest effort to increase pressure on China. 

The trade group, which is responsible for establishing the legal basis for anti-dumping tariffs, issued an “affirmative determination” on Tuesday morning that four countries in southeast Asia have been receiving subsidies from China to dump products into the global market, hurting domestic solar panel makers.