Armando Alexandri is a mining engineer by training, with more than 40 years of operational experience in the industry, primarily in Mexico, Peru, Chile, and Ecuador. He has designed, built, and operated both underground and open-pit mines, as well as processing plants, in Chihuahua, Guerrero, Guanajuato, Nuevo León, Coahuila, Sonora, Oaxaca, and other regions. He was instrumental in significantly expanding operations at the Bolivar Mine in Chihuahua, at Impact Silver's operations in the State of Mexico, at the Nukay (Los Filos) operation in Guerrero, at the Tahuehueto project in Durango, and at Campo Morado in Guerrero. He has served as Chief Operating Officer for several companies, including Gold Resource Corporation, where he was crucial in turning around the Don David Gold mine, and Luca Mining Corporation, where he is credited with turning around the Tahuehueto project and the Campo Morado mine and returning them to profitability. Armando also served as the President of the American Institute of Mining Engineers (Mexico) from 1999 to 2000, among other leadership roles.