The affected companies did not immediately respond to requests for comment.
The companies were added to the Entity List under the Uighur Forced Labor Prevention Act, which restricts imports linked to what the U.S. government calls the ongoing genocide of minorities in China’s western Xinjiang region.
The list now includes more than 70 entities linked to products such as cotton clothing, car parts, vinyl flooring and solar panels.
The list identifies those who collaborate with the government of the Xinjiang Uyghur Autonomous Region to recruit and transport out of the region Uyghurs, Kazakhs, Kyrgyz or members of other persecuted groups, and those who source material from the region or from people collaborating with the Xinjiang government.
U.S. officials say Chinese authorities have set up labor camps for Uighurs and other Muslim minority groups in Xinjiang. Beijing denies any abuses.