Mr. Tellechea is an Investment Advisory Committee member to Arias Resource Capital GP II Ltd. He has extensive experience in international mining, serving as the current interim CEO of Largo Inc. and having served as president and chief executive officer of Sierra Metals Inc. Mr. Tellechea is also a member of the Board of Largo Inc.

Prior to Sierra Metals, Mr. Tellechea was president and chief executive officer of Asarco LLC (2003 to 2005), he served as the managing director of finance and administration for Asarco’s parent, Grupo Mexico (1994 to 2003), and also served as Asarco’s chief financial officer and vice-president of finance for Southern Copper Corp.