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Sales Revenue Breakdown KZ Standalone (bW) 1Q22 2Q22 3Q22 4Q22 1Q23 QoQ YOY Zinc Domestic 260 282 237 196 203 3.5% -21.9% Export 402 529 481 644 478 -25.8% 19.1% Total 662 811 718 842 681 -19.0% 3.0% Lead Domestic 89 89 78 79 76 -4.5% -14.5% Export 231 231 228 319 204 -35.9% -11.7% Total 320 320 306 398 280 -29.7% -12.4% Silver Domestic 8 7 6 8 7 -14.1% -10.5% Export 419 443 510 435 399 -8.2% -4.8% Total 427 451 516 442 407 -8.1% -4.9% Gold Domestic 181 226 212 160 145 -9.5% -20.1% Export 15 0 16 80 87 8.6% 465.8% Total 196 226 227 240 231 -3.5% 17.9% Copper Domestic 69 79 62 59 72 21.3% 4.0% Export 5 7 6 11 12 13.7% 157.3% Total 74 86 67 70 84 20.2% 13.6% Others 137 158 214 172 131 -23.7% -4.3% 14

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