BEIJING (AP) — China's government has warned Washington it will "resolutely safeguard" its interests ahead of a possible decision in an investigation into whether Beijing improperly pressures foreign companies to hand over technology.

A Commerce Ministry spokesman said Thursday the investigation ordered by President Donald Trump violates international trade standards. A decision is expected as early as this month, though U.S. officials have set no date.

Trump ordered U.S. trade officials in August to investigate whether Beijing uses market access restrictions or other tools to compel foreign companies to hand over technology.

Commerce Ministry spokesman Gao Feng says, "If the United States insists on unilateral and protectionist practices that will undermine the interests of China, we will take all necessary measures and resolutely safeguard the legitimate rights and interests of China."