16 As at 31 December 2021, the ageing analysis of trade payables, based on invoice date is as follows: 2021 RMB'000 2020 RMB'000 Within 1 month 1 to 3 months 3 to 6 months 6 to 12 months Over 12 months 202,950 59,079 25,057 9,282 32,310 118,069 30,931 4,979 10,101 28,...