FINANCIAL INSTRUMENTS BY CATEGORY (Schedule of Maturity Profile of the Group's Financial Liabilities) (Details) ¥ in Thousands, $ in Thousands	Dec. 31, 2020 USD ($)	Dec. 31, 2020 CNY (¥)	Dec. 31, 2019 CNY (¥)
Disclosure of financial liabilities [line items]
Trade payables \| ¥		¥ 100	¥ 3,896
Financial liabilities in other payables and accruals \| ¥		3,029	1,600
Lease liabilities - current \| ¥		745	803
Lease liabilities - non-current \| ¥		347
Due to related companies \| ¥		9,158	5,077
Due to the Shareholder \| ¥		7,149	7,097
Financial liabilities \| ¥		20,528	18,473
USD [Member]
Disclosure of financial liabilities [line items]
Trade payables \| $	$ 15
Financial liabilities in other payables and accruals \| $	463
Lease liabilities - current \| $	114
Lease liabilities - non-current \| $	53
Due to related companies \| $	1,402
Due to the Shareholder \| $	1,095
Financial liabilities \| $	3,142
Financial liabilities at amortised cost [Member]
Disclosure of financial liabilities [line items]
Trade payables \| ¥		100	3,896
Financial liabilities in other payables and accruals \| ¥		3,029	1,600
Lease liabilities - current \| ¥		745	803
Lease liabilities - non-current \| ¥		347
Due to related companies \| ¥		9,158	5,077
Due to the Shareholder \| ¥		7,149	7,097
Financial liabilities \| ¥		¥ 20,528	¥ 18,473
Financial liabilities at amortised cost [Member] \| USD [Member]
Disclosure of financial liabilities [line items]
Trade payables \| $	15
Financial liabilities in other payables and accruals \| $	463
Lease liabilities - current \| $	114
Lease liabilities - non-current \| $	53
Due to related companies \| $	1,402
Due to the Shareholder \| $	1,095
Financial liabilities \| $	$ 3,142

Financial liabilities in other payables and accruals.

No definition available.

Name:	chnr_FinancialLiabilitiesInOtherPayablesAndAccruals
Namespace Prefix:	chnr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Lease liabilities - non-current.

+ References

No definition available.

+ Details

Name:	chnr_LeaseLiabilitiesNoncurrent
Namespace Prefix:	chnr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of current lease liabilities. [Refer: Lease liabilities]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 16
-IssueDate 2020-01-01
-Paragraph 47
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2020-en-r&anchor=para_47_b&doctype=Standard
-URIDate 2020-01-01

+ Details

Name:	ifrs-full_CurrentLeaseLiabilities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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

Name:	ifrs-full_DisclosureOfFinancialLiabilitiesLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of liabilities that are: (a) a contractual obligation: (i) to deliver cash or another financial asset to another entity; or (ii) to exchange financial assets or financial liabilities with another entity under conditions that are potentially unfavourable to the entity; or (b) a contract that will, or may be, settled in the entity’s own equity instruments and is: (i) a non-derivative for which the entity is, or may be, obliged to deliver a variable number of the entity’s own equity instruments; or (ii) a derivative that will, or may be, settled other than by the exchange of a fixed amount of cash or another financial asset for a fixed number of the entity’s own equity instruments. For this purpose, rights, options or warrants to acquire a fixed number of the entity’s own equity instruments for a fixed amount of any currency are equity instruments if the entity offers the rights, options or warrants pro rata to all of its existing owners of the same class of its own non-derivative equity instruments. Also, for those purposes the entity’s own equity instruments do not include puttable financial instruments that are classified as equity instruments in accordance with paragraphs 16A-16B of IAS 32, instruments that impose on the entity an obligation to deliver to another party a pro rata share of the net assets of the entity only on liquidation and are classified as equity instruments in accordance with paragraphs 16C-16D of IAS 32, or instruments that are contracts for the future receipt or delivery of the entity’s own equity instruments. As an exception, an instrument that meets the definition of a financial liability is classified as an equity instrument if it has all the features and meets the conditions in paragraphs 16A-16B or paragraphs 16C-16D of IAS 32. [Refer: Financial instruments, class [member]; Financial assets; Derivatives [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2020-01-01
-Paragraph 25
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2020-en-r&anchor=para_25&doctype=Standard
-URIDate 2020-01-01

+ Details

Name:	ifrs-full_FinancialLiabilities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amounts payable that the entity does not separately disclose in the same statement or note.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2020-01-01
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_55&doctype=Standard
-URIDate 2020-01-01

+ Details

Name:	ifrs-full_OtherPayables
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of payables due to related parties. [Refer: Related parties [member]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2020-01-01
-Paragraph 78
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_78&doctype=Standard
-URIDate 2020-01-01

+ Details

Name:	ifrs-full_TradeAndOtherPayablesToRelatedParties
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of payment due to suppliers for goods and services used in the entity's business.

+ References

+ Details

Name:	ifrs-full_TradeAndOtherPayablesToTradeSuppliers
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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

- Details

Name:	ifrs-full_MaturityAxis=ifrs-full_FinancialLiabilitiesAtAmortisedCostMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: