TRADE AND BILL PAYABLES - TRADE AND BILLS PAYABLE (Details) - CNY (¥) ¥ in Thousands	Dec. 31, 2021	Dec. 31, 2020
TRADE PAYABLES [abstract]
Trade payables (a)	¥ 2,812,710	¥ 2,073,922
Bills payable (b)	300,000	0
Trade and bills payable	¥ 3,112,710	¥ 2,073,922

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

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2021-01-01
-Paragraph 78
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_78&doctype=Standard
-URIDate 2021-03-24

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