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FINANCIAL ASSETS AT FAIR VALUE THROUGH PROFIT OR LOSS (Details) ¥ in Thousands, $ in Thousands | Dec. 31, 2020 shares | Aug. 17, 2020 USD ($) shares | Aug. 17, 2020 CNY (¥) shares
--- | --- | --- | ---
Disclosure of financial assets [line items] |  |  |
Number of shares acquired | 120,000,000 |  |
Feishang Anthracite Resources Limited [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Number of shares acquired |  | 120,000,000 | 120,000,000
Percentage of equity interest acquired |  | 8.69% | 8.69%
Number of shares issued by Compnay |  | 9,077,166 | 9,077,166
Total price amount of transaction | ¥ |  |  | ¥ 78,288
Discount rate |  | 27.50% | 27.50%
Feishang Anthracite Resources Limited [Member] | USD [Member] |  |  |
Disclosure of financial assets [line items] |  |  |
Total price amount of transaction | $ |  | $ 11,988 |

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