Minerals exploration company Trilogy Metals’ shares soared more than 200% in premarket trading after the White House said it would take a 10% stake in the company, marking the latest investment in a private company by the U.S. government. The federal government said it is going into a partnership with Trilogy, which has mining claims in Alaska. It is part of a push to unlock supplies of copper and other critical minerals in the Ambler mining district, in the remote northeast of the state. Its $35.6 millio ...