China offered Britain talks on a post-Brexit free trade deal Monday, reaching out to London as Beijing remains mired in an increasingly bitter trade war with Washington, even as a senior Chinese diplomat reiterated its door remained open for dialogue.

China has been looking for allies in its fight with the United States, initiated by the Trump administration, which says China's high-tech industries have stolen intellectual property from American firms and demanded Beijing act to buy more U.S. products to reduce a $350 billion trade surplus.

Britain has pushed a strong message to Chinese companies that it is fully open for business as it prepares to leave the European Union next year, and China is one of the countries with which Britain would like to sign a post-Brexit free trade deal.