It will be the only active graphite mine in the United States. Titan is in the process of building a "demonstration plant" before going into a full mining operation. The company currently mines zinc.

As a result, the entire supply chain − from mining to final use in products − stretches across continents. Meeting the U.S. demand for rare earth elements and other critical minerals from operations ...

There are as many as 500,000 abandoned mines in the U.S. — far outnumbering those that are still active, according to the federal Mine Safety and Health Administration. Penn State trustees vote ...

the only active rare earth mine in the United States.Credit...Steve Marcus/Reuters Today the only active rare earth mine in the United States is in Mountain Pass, Calif. Its operator, MP Materials ...

a time when the western US was volcanically active. The US team believes that it wouldn’t be a huge stretch to have existing coal mines worked a little harder, with any extra material being ...