Pulp Selection Clause Samples

Pulp Selection. Atna Resources re-analyzed 652 pulps from drill-hole samples as part of a due diligence effort to confirm the presence of strong gold mineralization at depth and along strike from open pits and other hypothesized structures at the P▇▇▇▇▇ Mine. Selection of pulps was based on grade, and whether or not the mineralized intercept was contained within either the Range Front or CX fault zone. Grade ranges for samples to pull were those intervals above 0.10 oz/ton, unless the sample was internal to a mineralized intercept. The pulps came from the mine’s pulp library stored on site. Intervals pulled are listed in Appendix 13-1, Pulp Re-Assay List. Care was taken to maintain the order and status of the library. All pulps pulled for re-assay were replaced in their original boxes, in order, and the boxes restored to their original locations on the mine site. After pulling and cataloguing the pulps, Atna staff delivered the pulps to the BSi Inspectorate laboratory facility in Reno for re-bagging and insertion of blind standards and blanks. ALS Chemex Laboratories completed the analytical work.