TEST REPORT Project : Leach Column WUG Location : 43, Moresby Avenue, Waihi 2610 Client : OceanaGold Contractor : Rebecca Hillyard Sampled by : Rebecca Hillyard Date sampled : 17/09/2021 Sampling method : Drill core Sample description : Core samples Sample condition Crushed Source Waihi, EG South (B3) Project No : 5-24G21.67 Depth (m) : n/a Lab Ref No : OR1378C Client Ref No : B3-SS2 Sieve Analysis Size (mm) % Passing Size (mm) % Passing Size (mm) % Passing Size (mm) % Passing 75.00 - 19.00 - 4.75 97 0.300 17 63.00 - 13.20 - 2.36 61 0.150 12 37.50 - 9.50 100 1.18 37 0.075 9 26.50 - 6.70 100 0.600 25 0.063 8 Test Method Notes NZS 4407 : 2015 Test 3.8.1 History: Fraction tested: Dispersant Used: All information supplied by Client Date tested : 02 - 04/11/2021 Sampling is not covered by IANZ Accreditation. Results apply only to sample tested. Date reported : 09/11/2021 This report may only be reproduced in full IANZ Approved Signatory Designation : Laboratory Technician (Z. Francis) Date : 09/11/2021 PF-LAB-099 (11/07/2020) Page 1 of 1 WET SIEVE ANALYSIS As received Whole Sodium hexametaphosphate w/ Sodium carbonate Sample size is less than specified in NZS4407:2015. 75.0 63.0 37.5 26.5 19.0 13.2 9.5 6.7 4.75 2.36 1.18 0.600 0.300 0.150 0.075 0.063 0 20 40 60 80 100 0.01 0.10 1.00 10.00 100.00 % Passing Particle Size (mm) Sieve Aperture Size (mm) coarse medium SILT medium fine SAND coarse medium fine GRAVEL coarse WSP New Zealand Limited Quality Management Systems Certified to ISO 9001 WSP Research & Innovation Centre Telephone +64 4 587 0600 Facsimile +64 4 587 0604 Website www.wsp.com/en-NZ 33 The Esplanade, Petone PO Box 30 845, Lower New Zealand
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