Supporting Technical Assessments

GHD | Oceana Gold New Zealand Ltd. | 12552081 | Waihi North Project F-3 TSF1A 137 3,208,000 181 16,829,023 138 3,431,000 181.5 17,022,128 139 3,658,000 182 17,215,977 140 3,891,000 182.5 17,410,571 141 4,128,000 183 17,605,911 142 4,370,000 183.5 17,801,999 143 4,616,000 184 17,998,836 144 4,866,000 184.5 18,196,424 145 5,120,000 185 18,394,764 146 5,379,000 185.5 18,593,858 147 5,641,000 186 18,793,707 148 5,908,000 186.5 18,994,312 149 6,178,000 187 19,195,675 150 6,451,000 187.5 19,397,798 151 6,728,000 188 19,600,681 152 7,008,000 188.5 19,804,326 153 7,291,000 189 20,008,735 154 7,579,000 189.5 20,213,909 155 7,869,000 190 20,419,849 156 8,163,000 190.5 20,626,556 157 8,462,000 191 20,834,028 158 8,764,000 191.5 21,042,251 159 9,070,000 192 21,251,187 160 9,382,000 Table 4 TSF2 Height Storage Table TSF2 Column 1 Column 2 Elevation (mRL) Volume (m3) Elevation (mRL) Volume (m3) 148.4 0 154.6 958,487 148.5 2.1 154.7 985,563 148.6 123 154.8 1,012,776 148.7 557 154.9 1,040,138 148.8 1,867 155 1,067,657 148.9 3,681 155.1 1,095,358 149 6,014 155.2 1,123,257 149.1 8,872 155.3 1,151,359 149.2 12,234 155.4 1,179,712 149.3 16,067 155.5 1,208,360 149.4 20,307 155.6 1,237,368

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