“Unprecedented… I don’t know what the word is, but it’s bad,” says trade expert Deborah Elms.

Other experts say no US company has ever done anything like this before.

But Trump did do something similar in June when he approved the takeover of US Steel by Japan’s Nippon Steel. That included a so-called “golden share”, a rare practice in which the government takes a stake in a business.

In this case, the White House has not said how the agreement will be implemented - such as where this money would go, or how it would be used.