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ORGANIZATION AND PRINCIPAL ACTIVITIES (Details) ¥ in Thousands, $ in Thousands | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2022 USD ($) | Jun. 30, 2023 USD ($) | Jun. 30, 2023 CNY (¥) | Dec. 31, 2022 CNY (¥) | Dec. 31, 2021 CNY (¥)
IfrsStatementLineItems [Line Items] |  |  |  |  |
Nominal value of issued common/ registered share capital | $ 65,351 | $ 62,146 | ¥ 450,782 | ¥ 450,782 | ¥ 450,782
China Coal Mining Investment Limited China Coal [Member] |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |
Name of subsidiary | China Coal Mining Investment Limited (“China Coal”) |  |  |  |
Place of incorporation/registration and operations | Hong Kong |  |  |  |
Percentage of equity attributable to the Company - Direct | 100.00% |  |  |  |
Principal activities | Investment holding |  |  |  |
F M H Corporate Services Inc [Member] |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |
Name of subsidiary | FMH Corporate Services Inc. |  |  |  |
Place of incorporation/registration and operations | United States |  |  |  |
Percentage of equity attributable to the Company - Direct | 100.00% |  |  |  |
Principal activities | Dormant |  |  |  |
Feishang Dayun Coal Mining Limited [Member] |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |
Name of subsidiary | Feishang Dayun Coal Mining Limited |  |  |  |
Place of incorporation/registration and operations | Hong Kong |  |  |  |
Principal activities | Investment holding |  |  |  |
Percentage of equity attributable to the Company - Indirect | 100.00% |  |  |  |
Feishang Mining Holdings Limited [Member] |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |
Name of subsidiary | Feishang Mining Holdings Limited |  |  |  |
Place of incorporation/registration and operations | BVI |  |  |  |
Percentage of equity attributable to the Company - Direct | 100.00% |  |  |  |
Principal activities | Investment holding |  |  |  |
Feishang Yongfu Mining Limited [Member] |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |
Name of subsidiary | Feishang Yongfu Mining Limited |  |  |  |
Place of incorporation/registration and operations | Hong Kong |  |  |  |
Principal activities | Investment holding |  |  |  |
Percentage of equity attributable to the Company - Indirect | 100.00% |  |  |  |
Newhold Investments Limited [Member] |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |
Name of subsidiary | Newhold Investments Limited |  |  |  |
Place of incorporation/registration and operations | BVI |  |  |  |
Percentage of equity attributable to the Company - Direct | 100.00% |  |  |  |
Principal activities | Investment holding |  |  |  |
Pineboom Investments Limited [Member] |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |
Name of subsidiary | Pineboom Investments Limited |  |  |  |
Place of incorporation/registration and operations | BVI |  |  |  |
Percentage of equity attributable to the Company - Direct | 100.00% |  |  |  |
Principal activities | Investment holding |  |  |  |
Shenzhen Feishang Managementand Consulting Co Limited Feishang Management [Member] |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |
Name of subsidiary | Shenzhen Feishang Management and Consulting Co., Limited (“Feishang Management”) |  |  |  |
Place of incorporation/registration and operations | PRC/Mainland China |  |  |  |
Principal activities | Provision of management and consulting services to other companies in the Group |  |  |  |
Percentage of equity attributable to the Company - Indirect | 100.00% |  |  |  |
Nominal value of issued common/ registered share capital |  |  |  | 10,000 |
Silver Moon Technologies Limited [Member] |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |
Name of subsidiary | Silver Moon Technologies Limited |  |  |  |
Place of incorporation/registration and operations | BVI |  |  |  |
Percentage of equity attributable to the Company - Direct | 80.00% |  |  |  |
Principal activities | Dormant |  |  |  |
Sunwide Capital Limited [Member] |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |
Name of subsidiary | Sunwide Capital Limited |  |  |  |
Place of incorporation/registration and operations | BVI |  |  |  |
Percentage of equity attributable to the Company - Direct | 100.00% |  |  |  |
Principal activities | Dormant |  |  |  |
Yangpu Shuanghu Industrial Development Co Limited [Member] |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |
Name of subsidiary | Yangpu Shuanghu Industrial Development Co., Limited |  |  |  |
Place of incorporation/registration and operations | PRC/Mainland China |  |  |  |
Principal activities | Investment holding |  |  |  |
Percentage of equity attributable to the Company - Indirect | 100.00% |  |  |  |
Nominal value of issued common/ registered share capital |  |  |  | 1,000 |
Yunnan Feishang Mining Co Limited [Member] |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |
Name of subsidiary | Yunnan Feishang Mining Co., Limited |  |  |  |
Place of incorporation/registration and operations | PRC/Mainland China |  |  |  |
Principal activities | Investment holding |  |  |  |
Percentage of equity attributable to the Company - Indirect | 100.00% |  |  |  |
Nominal value of issued common/ registered share capital |  |  |  | 50,000 |
Bayannaoer City Feishang Mining Company Limited [Member] |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |
Name of subsidiary | Bayannaoer City Feishang Mining Company Limited |  |  |  |
Place of incorporation/registration and operations | PRC/Mainland China |  |  |  |
Principal activities | Exploration and development of lead mines |  |  |  |
Percentage of equity attributable to the Company - Indirect | 100.00% |  |  |  |
Nominal value of issued common/ registered share capital |  |  |  | 59,480 |
Precise Space Time Technology Limited P S T Technology [Member] |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |
Name of subsidiary | Precise Space-Time Technology Limited (“PST Technology”) |  |  |  |
Place of incorporation/registration and operations | Hong Kong |  |  |  |
Percentage of equity attributable to the Company - Direct | 100.00% |  |  |  |
Principal activities | Investment holding |  |  |  |
Nominal value of issued common/ registered share capital |  |  |  | 10 |
Shenzhen New Precise Space Time Technology Co Limited Shenzhen New P S T [Member] |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |
Name of subsidiary | Shenzhen New Precise Space-Time Technology Co., Limited (“Shenzhen New PST”) |  |  |  |
Place of incorporation/registration and operations | PRC/Mainland China |  |  |  |
Principal activities | Investment holding |  |  |  |
Percentage of equity attributable to the Company - Indirect | 100.00% |  |  |  |
Nominal value of issued common/ registered share capital |  |  |  | 800 |
Shenzhen Qianhai Feishang Environmental Investment Co Limited Shenzhen Qianhai [Member] |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |
Name of subsidiary | Shenzhen Qianhai Feishang Environmental Investment Co., Limited (“Shenzhen Qianhai”) |  |  |  |
Place of incorporation/registration and operations | PRC/Mainland China |  |  |  |
Principal activities | Investment holding |  |  |  |
Percentage of equity attributable to the Company - Indirect | 100.00% |  |  |  |
Nominal value of issued common/ registered share capital |  |  |  | 100,000 |
Shanghai Onway Environmental Development Co Limited Shanghai Onway [Member] |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |
Name of subsidiary | Shanghai Onway Environmental Development Co., Limited (“Shanghai Onway”) |  |  |  |
Place of incorporation/registration and operations | PRC/Mainland China |  |  |  |
Principal activities | Provision of construction services, maintenance services and sales of equipment related to wastewater treatment |  |  |  |
Percentage of equity attributable to the Company - Indirect | 51.00% |  |  |  |
Nominal value of issued common/ registered share capital |  |  |  | 20,408 |
Zhejiang Xinyu Environmental Technology Co Limited [Member] |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |
Name of subsidiary | Zhejiang Xinyu Environmental Technology Co., Limited |  |  |  |
Place of incorporation/registration and operations | PRC/Mainland China |  |  |  |
Principal activities | Provision of construction service, maintenance service and sale of equipment related to wastewater treatment |  |  |  |
Percentage of equity attributable to the Company - Indirect | 51.00% |  |  |  |
Nominal value of issued common/ registered share capital |  |  |  | 20,000 |
Shaoguan Angrui Environmental Technology Development Co Limited Shaoguan Angrui [Member] |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |
Name of subsidiary | Shaoguan Angrui Environmental Technology Development Co., Limited (“Shaoguan Angrui”) |  |  |  |
Place of incorporation/registration and operations | PRC/Mainland China |  |  |  |
Principal activities | Wastewater and refuse treatment under the service concession agreement |  |  |  |
Percentage of equity attributable to the Company - Indirect | 28.00% |  |  |  |
Nominal value of issued common/ registered share capital |  |  |  | ¥ 26,682 |

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