China appears to have quietly rolled back retaliatory tariffs of 125% on some semiconductors made in the United States, according to details provided to CNN on Friday by three import agencies in the southern technology hub of Shenzhen.

Levies on certain U.S.-made microchips have been dropped, importers say. Meanwhile, China denied President Trump’s claims that talks to reduce tariffs are happening.

A Ministry of Commerce taskforce is collecting lists of items that could be exempted from tariffs and is asking companies to submit their own requests, according to a source who spoke on condition of anonymity.