Feasibility Study and Technical Report - Pretivm

As assay certificates were received, the data was imported directly to the QA/QCdatabase and the analytical results for the duplicate pairs, standards, and blanks werereviewed prior to sending database exports to Pretivm personnel. QA/QC data wasdocumented regularly in order to maintain communications in this regard.A master database for the Project was compiled to include all data from the Project inorder to improve data transferability. This master database was compiled from multiplesource databases including:• The pre-2011 Brucejack database compiled by Silver Standard, which includeddata from 2009 and 2010. This database source was a relational databasesystem suited for exploration and mining data management.• The historic Brucejack database including all data for drillholes drilled prior to2009. This database was compiled and verified by Silver Standard following theinitial database compilation and analytical QA/QC results and verification byGeoSpark.• The 2011 and 2012 Pretivm relational database, compiled by GeoSpark forPretivm as previously described.The master Brucejack database was provided to Snowden and the database was thenfurther reviewed for any potentially problematic data.The master database was, at the time of this report, regularly updated and maintained byGeoSpark. All new data was imported from camp database exports and original assaycertificates provided. Original assay certificates were reviewed for QA/QC as they werereceived, and the original data, provided by Pretivm, was checked for potentiallyproblematic data. The database was reviewed to ensure that the data remainedfunctional for use by eliminating down hole interval overlaps and records beyond end ofhole depths, and addressing any data entry issues related to the down hole attributecodes, etc. The sampling table was also updated wherever QA/QC measures revealeddata entry issues related to the sample identities or details. For example, there weresome issues where the wrong standard identity was entered and the analytical resultsreturned clearly revealed the correct standard identity. Updates to sample identitieswere tracked within the database.11.3.3 2012 QA/QCThe QA/QC analytical results for the Project are quantitatively sufficient to representprecision, accuracy, and bias.ALS of Vancouver, BC, reported the primary sample analytical results for the drillholesidentified as SU-289 to SU-585.Secondary check samples analyses were analyzed by SGS Canada of Vancouver, BC.Pretium Resources Inc. 11-5 1291990200-REP-R0012-02Feasibility Study and Technical Report on the BrucejackProject, Stewart, BC