2022 – AN UPDATED TECHNICAL REPORT ON THE PIMENTON MINE AND ITS TAILINGS POND GOLD POTENTIAL REGION 5, CHILE FOR MINERA TIL TIL SpA, A WHOLLY OWNED SUBSIDIARY OF CERRO GRANDE MINING CORPORATION 2016 – An updated technical report on the pimenton mine, the surrounding pimenton property, and the nearby tordillo property in central chile for compania minera pimenton 2013 – Technical Report on the Pimenton Mine, the surrounding Pimenton Property in Central Chile (Dec 17, 2013) WGM Technical Review of the Pimenton Properties in Central Chile for South American Gold and Copper Company Limited 2010 Audit of Resources Reserves in Pimenton Mine 2009 Audit of Resources Reserves in Pimenton Mine. Observations Regarding the Changes of the Pimenton Mine Project Technical Report (June 2002) 2008 Central_Porphyry_Copper_Program_Pimenton_Proyect_Anglo_American 2008 Audit of Resources Reserves in Pimenton Mine. Observations Regarding the Changes of the Pimenton Mine Project Technical Report (June 2002) RIO TINTO Executive Summary Presentation (presentation is in english). June 6th, 2006. RIO TINTO Informe Final Rio TInto (Spanish geological summary). June 6th, 2006. Tech Report March 2005 Original Pimenton Technical Report Vol1 Original Pimenton Technical Report Vol2