Supporting Technical Assessments

Waihi North Project Preliminary Site Investigation (Ground Contamination) Williamson Water & Land Advisory Limited Location Product Quantity Unit Sodium cyanide emplura (106437) 500 g Sodium isobutyl xanthates 500 g Stablcal standard, 20 ntu (2660149) 1 L 381-line dulux super enamel high gloss 350 g 3m silicone lubricant 500 g Co contact cleaner (aerosol) (post june 2010) 2,000 g Cpc 400 aerosol (nz) 400 g Crc (nz) 2003, 2004, 2005 2.26 (aerosol) 360 g Dy-mark engineers layout ink los all colours 700 g Plasti-kote aerosol fluorescent colour range (product obsolete) 350 g Wd-40 aerosol 300 g Mechanical workshop Acetylene 30 Kg Automotive liquefied petroleum gas 10 Kg Bostik 2402 solvent based adhesive (product obsolete) 4 L BP diesel 50 L Chemlok 205 500 mL Mill Solutrix 11 13,000 Kg RO plant Caustic soda - liquid (46%-50%) (nz) 200 L Yard - A Solutrix 11 2,600 L Tmt15 (product obsolete) 1,100 L Leaching plant Buffer ph 10.0 colour coded blue 600 mL Hydrogen peroxide aseptic packaging grades 20 L Liquid oxygen 30,000 L Potassium permanganate 2 L Rhodamine b (c.i. 45170) for microscopy (107599) 1 L Silver nitrate for analysis emsure acs, iso, reag. ph eur (101512) 2 L Lime dosing plant high calcium hydrated lime 8,000 Kg High calcium quicklime 80 T Water Treatment Plant Carbon dioxide, liquid (nz) 20,000 L Copper sulphate pentahydrate 1,000 Kg Ferric chloride solution 40% 21,000 L High calcium hydrated lime 100,000 Kg Hyprox 600 (nz) 36,860 L Solutrix 11 1,300 Kg Tmt15 (product obsolete) 1,000 L

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