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RELATED PARTY BALANCES AND TRANSACTIONS (Schedule of Commercial Transactions with Related Companies) (Details) ¥ in Thousands, $ in Thousands | 12 Months Ended
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Dec. 31, 2020 USD ($) | Dec. 31, 2020 CNY (¥) | Dec. 31, 2019 CNY (¥) | Dec. 31, 2018 CNY (¥)
Disclosure of transactions between related parties [line items] |  |  |  |
CHNR's share of office rental, rates and others to Anka Consultants Limited ("Anka") | ¥ |  | ¥ 1,368 | ¥ 1,506 | ¥ 1,442
Feishang Management's share of office rental to Feishang Enterprise Group Co., Ltd. ("Feishang Enterprise") | ¥ |  | ¥ 166 | ¥ 166 | ¥ 166
USD [Member] |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |
CHNR's share of office rental, rates and others to Anka Consultants Limited ("Anka") | $ | $ 209 |  |  |
Feishang Management's share of office rental to Feishang Enterprise Group Co., Ltd. ("Feishang Enterprise") | $ | $ 25 |  |  |

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- Definition Feishang Management's share of office rental to Feishang Enterprise. + References No definition available. + Details
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Namespace Prefix: | chnr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Offical rental, rates and others. + References No definition available. + Details
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Namespace Prefix: | chnr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | srt_CurrencyAxis=currency_USD
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |