(Reuters) -Chinese battery companies CATL and Gotion High Tech should be added immediately to a U.S. import ban list, a group of Republican lawmakers said, alleging their supply chains use forced labour, the Wall Street Journal reported.

The lawmakers called for CATL and Gotion, which have ties to Ford and Volkswagen, respectively, to be added to what is known as the entity list under the Uyghur Forced Labor Prevention Act, the report said on Thursday.

The entity list restricts the import of goods tied to what the U.S. government has characterised as an ongoing genocide of minorities in China's Xinjiang region. Beijing denies any abuses.

Any allegation that Gotion "uses or is related to forced labor is baseless and absolutely false", the company said in an emailed statement to Reuters, adding that the selection of partners is based on "strict review mechanisms and evaluation criteria".

Volkswagen Group China has no evidence of human rights violations in connection with its business activities in China, a company spokesperson told Reuters in an emailed statement on Friday.

Volkswagen is also investigating these allegations immediately, "as we have done it in the past", the spokesperson added.

Volkswagen China Investment Co holds 26% of shares in Gotion, and the latter is not nominated for any U.S. projects or import business into the country, the Volkswagen spokesperson said.

CATL said in a statement that the allegations against it were "groundless and completely false", and that it was in compliance with applicable laws and regulations.

Business relations with some suppliers which were cited, it said, "ceased long ago".

Ford did not immediately respond to a Reuters request for comment.