The United States will prohibit imports from two companies in China that are accused of using the forced labor of Uyghurs in the country’s Xinjiang region.

The Department of Homeland Security announced on Wednesday that it added Changzhou Guanghui Food Ingredients and Baowu Group Xinjiang Bayi Iron and Steel, companies that manufacture artificial sweeteners and steel, to the Uyghur Forced Labor Prevention Act Entity List. This legislation made it U.S. policy to operate under the belief that the majority of, if not all, goods from Xinjiang are made through the use of forced labor of Uyghurs, a minority ethnic group in China.