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INVENTORIES - Amount of inventories recognized as an expense and included in profit or loss (Details) - CNY (¥) ¥ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
INVENTORIES |  |  |
Carrying amount of inventories sold | ¥ 211,292 | ¥ 303,021 | ¥ 443,382
Write down of inventories (reversal of inventory provision) | (2,301) | (56,766) | 55,973
Cost of sales | ¥ 208,991 | ¥ 246,255 | ¥ 499,355

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- Definition The amount of expense recognised related to the write-down of inventories to net realisable value. + References No definition available. + Details
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- Definition The carrying amount of inventories sold. + References No definition available. + Details
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- References No definition available. + Details
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- Definition The amount of costs relating to expenses directly or indirectly attributed to the goods or services sold, which may include, but are not limited to, costs previously included in the measurement of inventory that has now been sold, unallocated production overheads and abnormal amounts of production costs of inventories. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 99 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_99&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 103 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_103&doctype=Standard -URIDate 2020-01-01 + Details
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