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 Bear Creek Mining Corporation is committed to achieving a highly professional exploration and project development process that is sensitive to local economic and environmental concerns. As a responsible organization, our principal objective is to maximize long-term benefits to shareholders while minimizing any adverse environmental impacts from operations, and providing a safe and healthy workplace. Our extensive experience in Peru has allowed us to develop strong relationships within communities, which have broadened our knowledge of complex social and environmental issues related to exploration and project development. Bear Creek is dedicated to integrating all health, safety, environmental, and social considerations into all aspects of management and decision-making and positively contributing to future generations in Peru.
Bear Creek Mining Corporation -- Sampling and Assay Procedure, Quality Control
Sampling Procedure
Surface samples -- Bear Creek personnel collect all surface samples, including rock, soil and stream sediment samples. Respective samples are collected and immediately bagged, numbered and sealed. Sample bags are normally transported to Bear Creek's Lima office by Bear Creek vehicles where ALS Chemex is called and picks up the samples for delivery to their laboratory for preparation and assay. On occasion the samples are shipped directly to ALS Chemex (Lima laboratory) by local bus transport.
Drill samples -- Rock cores are taken from the drill hole and put in boxes marked with hole number and depth information by the drill contractor. The core is washed, measured, marked for sample intervals and photographed. A geologist then logs the core by noting sample quality, rock type, alteration, veining, sulfide content and other pertinent information that may influence mineralization. Support staff then saw the core in half lengthwise or halves the core with a manual splitter and places half of the core for each marked sample interval in a bag labeled with the sample number, and the bag is sealed immediately. Sample bags are transported directly to ALS Chemex (Lima laboratory) by local bus transport or to Bear Creek's Lima office by Bear Creek vehicles where ALS Chemex is called and picks up the samples for delivery to their laboratory for preparation and assay.
Assay Procedure/Quality Control
Bear Creek has implemented a quality control program to ensure regulatory "best practices" in lithogeochemical sampling and analysis of drill and surface samples. All samples are shipped in security sealed bags to ALS Chemex Labs in Lima, Peru. ALS Chemex is an ISO 9001:2000-registered laboratory and is preparing for ISO 17025 certification.
Drill core and surface rock samples are dried and crushed to -10 mesh size (70 percent smaller than 2mm) then a 250 gram split is pulverized to --200 mesh (85% smaller than 75 microns). Soil and stream sediment samples are dried and sieved to --80 mesh. All procedures are completed at ALS Chemex's Lima laboratory
All samples are routinely assayed by conventional fire-assay methods for gold at the Lima lab and for 34 elements through digestion in an aqua regia acid solution followed by Inductively Coupled Plasma-Atomic Emission Spectroscopy ("ICP-AES") analysis.
Bear Creek has separately purchased its own standards, which are inserted "blind" to the lab in the sample sequence. Bear Creek knows the values that should be returned for these standard samples, but the lab does not, and the standards act as an outside test of the lab's accuracy of analysis. Field duplicates are also used in the QC program as precision checks at ALS Chemex located in Lima, Peru and Vancouver, BC.
Andrew Swarthout, Bear Creek's President and CEO oversees all exploration programs and is Bear Creek's Qualified Person ("QP") for this purpose as required under NI 43-101. David Volkert, Bear Creek's Vice President of Exploration directly manages the field programs and reports directly to Andrew Swarthout.
NI 43-101 DISCLOSURE
Bear Creek Mining Corporation's (BCMC) exploration work is supervised by Andrew Swarthout, a Certified Professional Geologist with the AIPG (No. 10691), a director, executive and employee of BCMC and a Qualified Person as defined in NI 43-101. Mr. Swarthout has verified that the assay results presented herein have been accurately summarized from the official assay certificates provided to BCMC. BCMC follows the Exploration Best Practices Guidelines adopted by The Toronto Stock Exchange. Sample integrity is maintained throughout the process, and quality control and quality assurance measures are being implemented. Samples are assayed by ALS Chemex, an ISO 9002 certified laboratory independent of BCMC.
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