The Chinese government in recent weeks expanded its ban on exports of a handful of minerals found in critical military and energy technologies in America. The move puts a spotlight on America's domestic mineral supplies, many of which are locked in years-long federal permitting and regulatory reviews.

One such case is a project located at an abandoned gold mine in the heart of Idaho. That mine contains some of the nation's largest known deposits of the rare mineral antimony, which is among those affected by China's export restrictions. But after a staggering 14 years, the federal government has yet to give the Idaho project a green light to begin production.

Perpetua Resources, the developer of the Stibnite gold mine in Valley County, Idaho, first initiated study, engineering, and community engagement on the project in 2010. Since then, it has faced mountains of permit filings and lengthy environmental reviews conducted by at least five separate federal agencies.