In July 2026, Rokmaster Resources signed an option to acquire 100% of the Cristal Project which consists of 3 Mensuras (exploitation licenses) totalling 9 km² in the Western Andes region of Northern Chile. Located ~10kms south of the border with Peru within the Huayillas Quadrangle Cristal is situated ~72kms (1:15mins) via highway 135 from the Chilean coastal city of Arica. Cristal benefits from excellent local infrastructure including rail access through the Puquios rail station and nearby hydro power. Cristal is characterized as an exploration project which doesn't require drill permits and enjoys unrestricted access as the surface rights are held by the Chilean government.
The Cristal Project, located in a favourable geological region, is situated near the intersection of the prolific NW-trending Incapuquio Fault and the NS-trending West Fissure Fault Zone, a highly prospective regional structural corridor associated with large copper deposits in Chile and Peru. Several strands of the west fissure fault zone, believed related to mineralization at several copper deposits in northern Chile, trend through the Cristal Project area. 10kms south of the Cristal Project lies the Rio Lluta Property and the Quebrada Palmani porphyry copper target which provides potentially valid evidence for deep-seated copper mineralization underlying the Cristal Project. Of note, within the Rio Lluta Project, on the east side of the Quebrada Palmani target, is a famous outcrop known as the "Red Wall". Though not part of the current Cristal property, both the Rio Lluta Project and the Red Wall provide significant evidence for copper mineralization in the region.
Further south of the Cristal Project, approximately 150kms, is the Mocha porphyry copper deposit, the last recognized deposit going north in Chile which is dominated by younger volcanic cover rocks possibly providing evidence of a buried porphyry deposit at Cristal. Additional evidence of a potential blind porphyry copper deposit at the Cristal Project is seen in the results of exploration activities at the "Expanded" Cristal Project and adjacent properties by the likes of BHP Billiton, Rio Tinto, Peregrine Metals, Princeton Metals, and others betweeen 1990-2014. From 2012-2014, BHP spent >$2M in exploration activities consisting of Airborne Geophysical Surverys and 1,626m of drilling covering all the expanded Cristal Project.
The findings of the exploration activities include: (a) Princeton Mining in 1993 drilling its Rio Lluta Project (10kms south of Cristal) and intersecting a distal portion of a porphyry system with the best porphyry potential interpreted to be north in the area of the Cristal project; (b) drilling by Rio Tinto from 1997-1998 at its nearby Lamancha Property returning .42% copper over 3.0m exhibiting incipient chalcocite and strong phyllic to potassic alteration; (c) in 2012 BHP conducted airborne geophysical surveys (magnetic, gravity, electromagnetic) at the expanded Cristal Property showing a circular, donut-shaped anomaly 3kms in diameter, exhibiting a weak mag-high in the centre surrounded by a mag-low, and interpreted to potentially be a response to a buried porphyry copper deposit; (d) BHP interpretation of electromagnetic data suggests a NW-trending topographic ridge underlying younger volcanic cover rocks ~600m deep; (e) 1,626m of drilling by BHP in 2013 confimed EM data of a buried ridge ~600m below surface.