The aging analysis of trade receivables that are neither individually nor collectively considered to be impaired are as follows:
| As of December 31, | ||||||||||||
| 2016 | 2017 | 2017 | ||||||||||
| RMB’000 | RMB’000 | US$’000 | ||||||||||
|
Neither past due nor impaired |
438,751 | 587,510 | 90,299 | |||||||||
|
Past due but not impaired |
||||||||||||
|
Less than 1 month past due |
— | — | — | |||||||||
|
1 to 3 months past due |
— | — | — | |||||||||
|
|
|
|
|
|
|
|||||||
| 438,751 | 587,510 | 90,299 | ||||||||||
|
|
|
|
|
|
|
|||||||