TRADE RECEIVABLES (Tables)

12 Months Ended

Dec. 31, 2020

TRADE RECEIVABLES [abstract]

Schedule of trade receivables

	2019	2020
	RMB’000	RMB’000
Trade receivables	4,563,219	3,782,381
Including: receivables from related parties	3,477,558	2,955,797
Less: Provision for impairment of receivables	(61,135)	(60,704)
	4,502,084	3,721,677

Schedule of aging analysis of the outstanding trade receivables

	2019	2020
	RMB’000	RMB’000
Within 1 year	3,558,842	2,773,713
Over 1 year but within 2 years	747,600	653,062
Over 2 years but within 3 years	172,482	306,410
Over 3 years	84,295	49,196
	4,563,219	3,782,381

Schedule of movements on provision for impairment of trade receivables

	2018	2019	2020
	RMB’000	RMB’000	RMB’000
At December 31	6,203	61,212	61,135
Change of accounting policy	60,704	-	-
At January 1	66,907	61,212	61,135
Reversal of impairment loss provision	(5,689)	-	(358)
Written-off	(6)	(77)	(73)
At December 31	61,212	61,135	60,704