Golden-based Golden Minerals Co. (OTCQB: AUMN and TSX: AUMN) has sold its wholly-owned Mexican subsidiary, Minera de Cordilleras, S. de R.L. de C.V. to a privately held Mexican company for consideration of US $600,000. The sale agreement was signed on April 1. Upon consummation of the transaction, Minera Cordilleras held net operating losses, inflation-adjusted capital…