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REVENUE FROM CONTRACTS WITH CUSTOMERS (Details) ¥ in Thousands, $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2023 USD ($) | Jun. 30, 2023 CNY (¥) | Jun. 30, 2022 CNY (¥) | Dec. 31, 2022 USD ($) | Dec. 31, 2022 CNY (¥) | Dec. 31, 2021 CNY (¥) | Dec. 31, 2020 CNY (¥)
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |
Revenue from contracts with a customer | $ 1,684 | ¥ 12,216 | ¥ 16,072 | $ 2,944 | ¥ 20,306 | ¥ 18,735 | ¥ 42,498
Mainland China [Member] | Geographic Market [Member] |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |
Revenue from contracts with a customer | 1,684 | 12,216 | 16,072 |  |  |  |
Type Of Goods Or Services [Member] |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |
Revenue from contracts with a customer | 1,684 | 12,216 | 16,072 |  |  |  |
Type Of Goods Or Services [Member] | Construction Contract Revenue [Member] |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |
Revenue from contracts with a customer | 1,198 | 8,690 | 12,639 |  |  |  |
Type Of Goods Or Services [Member] | Operation And Maintenance Services [Member] |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |
Revenue from contracts with a customer | 56 | 405 |  |  |  |  |
Type Of Goods Or Services [Member] | Operation Service Concession Arrangements [Member] |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |
Revenue from contracts with a customer | 430 | 3,121 | 3,433 |  |  |  |
Timing Of Revenue Recognition [Member] |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |
Revenue from contracts with a customer | 1,684 | 12,216 | 16,072 |  |  |  |
Timing Of Revenue Recognition [Member] | Goods or services transferred over time [member] |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |
Revenue from contracts with a customer | $ 1,684 | ¥ 12,216 | ¥ 16,072 |  |  |  |
Wastewater Treatment [Member] |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |
Sales of copper ores |  |  |  |  |  |  |
Construction contract revenue |  |  |  |  | 14,633 | 12,203 | 7,665
Sales of wastewater treatment equipment |  |  |  |  | 161 |  |
Operation and maintenance services |  |  |  |  |  | 183 | 3,561
Operation services of service concession arrangement |  |  |  |  | 5,512 | 5,953 | 2,295
Construction services of service concession arrangement |  |  |  |  |  | 396 | 22,110
Revenue from contracts with a customer |  |  |  |  | 20,306 | 18,735 | 35,631
Mainland China |  |  |  |  | 20,306 | 18,735 | 35,631
At a point in time |  |  |  |  | 161 |  |
Over time |  |  |  |  | 20,145 | 18,735 | 35,631
Total revenue from contracts with customers |  |  |  |  | 20,306 | 18,735 | 35,631
Exploration And Mining [Member] |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |
Sales of copper ores |  |  |  |  |  |  | 6,867
Construction contract revenue |  |  |  |  |  |  |
Sales of wastewater treatment equipment |  |  |  |  |  |  |
Operation and maintenance services |  |  |  |  |  |  |
Operation services of service concession arrangement |  |  |  |  |  |  |
Construction services of service concession arrangement |  |  |  |  |  |  |
Revenue from contracts with a customer |  |  |  |  |  |  | 6,867
Mainland China |  |  |  |  |  |  | 6,867
At a point in time |  |  |  |  |  |  | 6,867
Over time |  |  |  |  |  |  |
Total revenue from contracts with customers |  |  |  |  |  |  | 6,867
Total [Member] |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |
Sales of copper ores |  |  |  |  |  |  | 6,867
Construction contract revenue |  |  |  |  | 14,633 | 12,203 | 7,665
Sales of wastewater treatment equipment |  |  |  | 23 | 161 |  |
Operation and maintenance services |  |  |  | 2,122 |  | 183 | 3,561
Operation services of service concession arrangement |  |  |  | 799 | 5,512 | 5,953 | 2,295
Construction services of service concession arrangement |  |  |  |  |  | 396 | 22,110
Revenue from contracts with a customer |  |  |  | 2,944 | 20,306 | 18,735 | 42,498
Mainland China |  |  |  | 2,944 | 20,306 | 18,735 | 42,498
At a point in time |  |  |  | 23 | 161 |  | 6,867
Over time |  |  |  | 2,921 | 20,145 | 18,735 | 35,631
Total revenue from contracts with customers |  |  |  | $ 2,944 | ¥ 20,306 | ¥ 18,735 | ¥ 42,498

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