BEIJING, July 5 (Xinhua) -- China's additional tariffs on some import products from the United States will be implemented immediately after the new U.S. tariffs take effect, the country's customs authority said Thursday.

In response to the U.S. announcement to impose additional duties on Chinese imports, the Customs Tariff Commission of the State Council decided in mid-June that additional tariffs for 545 items worth about 34 billion U.S. dollars, including agricultural products, vehicles and aquatic products, will be effective from July 6, 2018.

China will not implement additional tariffs ahead of the United States' tariff move, an official of the Customs Tariff Commission of the State Council said Wednesday.