Who is the largest provider of asbestos to the US?

As of my last update, the largest provider of asbestos to the U.S. was historically the Canadian company Quebec Asbestos Corporation, which operated extensive mines in Canada. However, due to health concerns and regulatory changes, asbestos use has significantly declined in the U.S. since the late 20th century. Currently, the use of asbestos is heavily restricted, and only a small amount is imported, primarily from countries like Russia.