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LOSS BEFORE TAXATION - Additional Information - (Details) - CNY (¥) ¥ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
LOSS BEFORE TAXATION
Inventory impairment provision	¥ 2,400	¥ 5,500
Depreciation and amortisation expense	¥ 6,400	¥ 6,140

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- References

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- Definition

Amount of inventory impairment provision.

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- Definition

The amount of depreciation and amortisation expense. Depreciation and amortisation are the systematic allocations of depreciable amounts of assets over their useful lives.

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