TRADE RECEIVABLES (Tables)

12 Months Ended

Dec. 31, 2021

TRADE RECEIVABLES [abstract]

Schedule of trade receivables

	2020			2021
	RMB’000			RMB’000
Trade receivables		3,782,381			4,419,925
Including: receivables from related parties		2,955,797			3,664,894
Less: Provision for impairment of receivables		(60,704	)		(23,751	)
		3,721,677			4,396,174

Schedule of aging analysis of the outstanding trade receivables

	2020		2021
	RMB’000		RMB’000
Within 1 year		2,773,713		3,655,942
Over 1 year but within 2 years		653,062		762,258
Over 2 years but within 3 years		306,410		1,725
Over 3 years		49,196		—
		3,782,381		4,419,925

Schedule of movements on provision for impairment of trade receivables

Movements on the provision for impairment of trade receivables are as follows:

	2019			2020			2021
	RMB’000			RMB’000			RMB’000
At December 31		61,212			61,135			60,704
Reversal of impairment loss provision		—			(358	)		(36,953	)
Written-off		(77	)		(73	)		—
At December 31		61,135			60,704			23,751