Hochschild Mining plc is engaged in mining, processing and sale of silver and gold. It has approximately three operating mines (Arcata, Pallancata and Inmaculada) located in southern Peru and approximately one operating mine (San Jose) located in Argentina. Its segments include Arcata, Pallancata, San Jose, Inmaculada, Exploration and Other. Arcata and San Jose business units are engaged in the sale of gold, silver, dore and concentrate. Pallancata business unit is engaged in the sale of concentrate. Inmaculada business unit is engaged in the sale of gold, silver and dore. The Exploration segment explores and evaluates areas of interest in brownfield and greenfield sites to extend the life-of-mine of existing operations and to assess the feasibility of new mines. The Other segment includes Empresa de Transmision Callalli S.A.C., a power transmission company; HMX, S.A. de C.V., a service company in Mexico, and Empresa de Transmision Aymaraes S.A.C., a power transmission company.