| Assets | — | — |
| Current assets | — | — |
| Cash and cash equivalents | 326,929.04a | 318,495.05a |
| Trade receivables | — | — |
| Related parties | 10,827.96a | 18,043.83a |
| Third parties | 191,864.08a | 273,863.36a |
| Other receivables - third parties | 134.48a | 137.84a |
| Inventories | 23,133.83a | 40,366.73a |
| Prepaid taxes | 121,349.75a | 90,589.34a |
| Advances and prepaid expenses | 31,822.91a | 100,478.04a |
| Total current assets | 706,062.06a | 841,974.18a |
| Non-current assets | — | — |
| Other receivables - third parties | 536.98a | 739.65a |
| Restricted funds | 24,660.17a | 20,623.11a |
| Deferred tax assets | 6,417.42a | 8,502.94a |
| Property and equipment - net | 109,889.24a | 103,927.93a |
| Right-of-use assets - net | 2,235.23a | 2,563.3a |
| Exploration and evaluation assets | 451.23a | 473.07a |
| Mine properties - net | 308,953.54a | 256,746.09a |
| Goodwill - net | 17,206.17a | 24,391.36a |
| Intangible asset - software - net | 17.09a | 17.86a |
| Other non-current assets | 63,142.77a | 52,082.77a |
| Total non-current assets | 533,509.83a | 470,068.06a |
| Total assets | 1,239,571.89a | 1,312,042.25a |
| Liabilities | — | — |
| Current liabilities | — | — |
| Short-term bank loans | 242,060.17a | 251,786.57a |
| Trade payables | — | — |
| Related parties | 55,633.96a | 51,792.49a |
| Third parties | 192,359.67a | 285,889.33a |
| Other payables | — | — |
| Related parties | 8.95a | 9.38a |
| Third parties | 380.55a | 211.17a |
| Taxes payable | 4,547.12a | 8,334.31a |
| Accrued expenses | 16,345.8a | 16,438.33a |
| Advances from customers - third parties | 8.54a | 8.95a |
| Current portion of long-term liabilities | — | — |
| Bank loan | 10,000a | 0a |
| Lease liabilities | 240.26a | 907.07a |
| Total current liabilities | 521,585.01a | 615,377.61a |
| Non-current liabilities | — | — |
| Employee benefits liability | 4,157.11a | 3,839.18a |
| Deferred tax liabilities | 15,752.25a | 23,026.17a |
| Long-term liabilities - net of current portion | — | — |
| Bank loan | 30,000a | 0a |
| Lease liabilities | 326.6a | 429.18a |
| Provision for reclamation and mine closure | 6,530.23a | 6,160.73a |
| Other non-current liabilities | 92.81a | 97.3a |
| Total non-current liabilities | 56,858.99a | 33,552.55a |
| Total liabilities | 578,444a | 648,930.16a |
| Equity | — | — |
| Equity attributable to owners of the parent company | — | — |
| Capital stock | 65,065.96a | 65,065.96a |
| Additional paid-in capital - net | 229,019.2a | 229,019.2a |
| Difference arising from transactions with non-controlling interests | 1,228.95a | 1,228.95a |
| Retained earnings | — | — |
| Appropriated | 7,516.29a | 6,516.29a |
| Unappropriated | 427,408.73a | 429,602.52a |
| Other equity component | -78,080.12a | -77,682.51a |
| Total | 652,159.01a | 653,750.41a |
| Non-controlling interests | 8,968.88a | 9,361.67a |
| Total equity | 661,127.89a | 663,112.09a |
| Total liabilities and equity | 1,239,571.89a | 1,312,042.25a |