United States Antimony Corporation (USAC) announced the addition of Joseph A. Carrabba, age 71, as an Independent Director to its board. Mr. Carrabba is the Retired Chairman, President and Chief Executive Officer of Cliffs Natural Resources Inc., formerly Cleveland-Cliffs Inc., from May 2007 to November 2013. He also previously served as Cliffs President & CEO from 2006 to 2007 and as President and Chief Operating Officer from 2005 to 2006.

Prior to these executive positions, Mr. Carrabba previously served as President and Chief Operating Officer of Diavik Diamond Mines from 2003 to 2006. Mr. Carrabba currently resides in south Florida and serves or has previously served on the boards of several other companies including Newmont Mining and Timken Steel, as well as several TSX listed companies, AECON and NioCorp.