United States President Donald Trump has told investors that his policies would never change.

Trump made this statement on Friday in a post on social media.

This is as global stock markets tumbled for a second day following his announced tariff plan and China's retaliatory measures.

β€œTo the many investors coming into the United States and investing massive amounts of money, my policies will never change. This is a great time to get rich, richer than ever before,” he wrote.

DAILY POST reports that Trump, on Wednesday announced that China would be hit with a 34% tariff, on top of the 20% he imposed earlier this year, bringing the total new levies to 54%.