The Chinese government announced the tariffs last week, shortly after President Trump raised tariffs on Chinese products for the second time since he took office in January. The Chinese tariffs will include a levy of 15 percent on U.S. products like chicken, wheat and corn, as well as 10 percent on products like soybeans, pork, beef and fruit.

Retaliatory tariffs imposed by China on U.S. farm products took effect Monday. The Chinese tariffs are a 15% levy on American products such as corn, wheat and chicken, and 10% on fruit, soybeans, beef and pork.

The tariffs add a new front to a trade war largely driven by Donald Trump's announcement of tariffs on Canada, Mexico and China and threats of protectionist measures on other nations.