Trump's move on trade raises concerns

China voiced "grave concern" over US President Donald Trump's order for a study of whether an investigation into China's intellectual property policies and practices was warranted.

The executive memorandum Trump signed on Monday instructed US Trade Representative Robert Lighthizer to explore whether to investigate any of China's laws, policies, practices or actions that may be unreasonable or discriminatory, or may be harming US intellectual property and innovation technology.

China's Ministry of Commerce responded on Tuesday that China will take all necessary and appropriate measures to protect its commercial and trade interests if the US government wrongly accuses China over alleged theft of US technology and intellectual property.