The announcement came after Bloomberg reported last Thursday that Walmart had asked some Chinese suppliers, including makers of kitchenware and clothing, to lower prices by as much as 10% for each round of U.S. tariffs.

“If this is true, it is unreasonable for Walmart to require Chinese suppliers to bear all tariffs, which will disrupt fair competition and foreign trade order,” the report said, according to a CNBC translation of the Chinese.

Walmart’s reported move “may create the risk of supply chain disruption and harm the interests of Chinese and American companies and American consumers,” it added, warning of further actions if the company fails to correct its course.