Extractive Projects / Proyectos extractivos

- Iron oxide - Inversiones Los Pinares (part of EMCO Group), Inversiones Ecotek (part of EMCO Group)

- Gold, Silver - (1998-2006), (2006-2017), (2017-present), Entre Mares de Guatemala, S.A. (subsidiary of Goldcorp Inc. and later Bluestone Resources Inc.), Elevar Resources (formerly Entre Mares de Guatemala)

- Gold, Zinc - (2000-2002), (2002-2013), (2013-2019), Minerales Torogoz

- Silver, Gold, Lead, Zinc - (2019- ), (2010-2019), (2006-2010), (1998-2006), Minera San Rafael, S.A. (MINERASA) (subsidiary of Tahoe Resources Inc.), Entre Mares de Guatemala, S.A. (subsidiary of Goldcorp Inc. and later Bluestone Resources Inc.)

- Gold - (2006-2009), (2009-2019), (2019- ), Desarrollo Minero de Nicaragua S.A. (DESMINIC S.A.)

- Gold, Silver - (2000-2002), (2002-2009), (2009-2019), (2019-present ), Montana Exploradora de Guatemala, S.A. (1996-present)

- Gold, Silver - (2010-2015), Minera Zalamera S.A. de C.V (2009-2010), Minera Hochschild Mexico

- Gold - (1995-2005), (2005-2010), Minerales Entre Mares de Honduras, S.A.