Mineros Aluvial S.A.S. BIC mines the Tertiary gravel plain gold placer deposits in the paleochannels of the alluvial valley of the Nechí River, in El Bagre, Colombia by removing the overburden and excavating the gold-bearing sand and gravel using large floating dredges and gravity separation. Following extraction of the gold, Mineros progressively reclaims, restores, and ensures the impacted lands are available for use as small holdings, for beekeeping, crops or pisciculture. Alternatively they are reforested or developed into wetlands.
Hemco Mineros Nicaragua S.A. operates two underground mines (Panama and Pioneer) in the municipality of Bonanza, in the North Caribbean Coast Autonomous Region (RACCN) in Nicaragua, which is part of the Nicaraguan Mining Triangle, located in the municipalities of Bonanza, Siuna and Rosita. The mining method is a mixture of tracked and mechanized mining with the resultant mineralized material processed at the Hemco Plant, the Vesmisa Plant and La Curva Plant.