XML 126 R115.htm IDEA: XBRL DOCUMENT v3.25.1
Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail)
¥ in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2024
CNY (¥)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
CNY (¥)
Dec. 31, 2022
CNY (¥)
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance ¥ 3,553,601      
Charge for the year 462,588 $ 64,483 ¥ 508,726 ¥ 516,276
Ending balance 3,418,243 476,490 3,553,601  
Cost [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance 9,820,928   9,794,919  
Additions 352,829   178,876  
Disposal of subsidiary     (107,785)  
Disposals (16,213)   (30,811)  
Write-off (5,996)   (13,764)  
Translation difference 5,455   (507)  
Ending balance 10,157,003   9,820,928 9,794,919
Accumulated depreciation, amortization and impairment [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance (6,267,327)   (5,799,175)  
Charge for the year 483,266   527,556  
Disposal of subsidiary     66,674  
Disposals 15,523   24,922  
Write-off 5,764   12,033  
Impairment loss 7,332   44,667  
Translation difference 2,122   (442)  
Ending balance (6,738,760)   (6,267,327) (5,799,175)
Freehold land [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance 14,592      
Ending balance 14,689 2,048 14,592  
Freehold land [member] | Cost [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance 15,056   14,654  
Translation difference 123   402  
Ending balance 15,179   15,056 14,654
Freehold land [member] | Accumulated depreciation, amortization and impairment [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance (464)   (477)  
Translation difference 26   (13)  
Ending balance (490)   (464) (477)
Buildings and improvements [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance 1,401,655      
Ending balance 1,322,267 184,319 1,401,655  
Buildings and improvements [member] | Cost [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance 2,568,485   2,610,784  
Additions 550   2,903  
Disposal of subsidiary     (80,585)  
Transfers 9,055   38,506  
Write-off (195)   (2,890)  
Translation difference 2,862   (233)  
Ending balance 2,580,757   2,568,485 2,610,784
Buildings and improvements [member] | Accumulated depreciation, amortization and impairment [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance (1,166,830)   (1,111,128)  
Charge for the year 90,890   92,919  
Disposal of subsidiary     44,274  
Write-off 62   2,068  
Impairment loss     9,162  
Translation difference 832   (37)  
Ending balance (1,258,490)   (1,166,830) (1,111,128)
Construction in progress [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance 239,114      
Ending balance 289,177 40,310 239,114  
Construction in progress [member] | Cost [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance 253,735   348,769  
Additions 315,019   149,846  
Transfers (264,976)   (244,741)  
Write-off (203)      
Translation difference 20   (139)  
Ending balance 303,595   253,735 348,769
Construction in progress [member] | Accumulated depreciation, amortization and impairment [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance (14,621)   (14,060)  
Write-off 203      
Impairment loss     561  
Ending balance (14,418)   (14,621) (14,060)
Plant and machinery [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance 1,829,082      
Ending balance 1,729,300 241,058 1,829,082  
Plant and machinery [member] | Cost [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance 6,655,861   6,471,846  
Additions 23,613   18,676  
Disposal of subsidiary     (21,632)  
Disposals (13,275)   (7,000)  
Transfers 251,609   201,642  
Write-off (815)   (7,474)  
Translation difference 1,277   (197)  
Ending balance 6,918,270   6,655,861 6,471,846
Plant and machinery [member] | Accumulated depreciation, amortization and impairment [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance (4,826,779)   (4,419,261)  
Charge for the year 368,070   402,554  
Disposal of subsidiary     17,225  
Disposals 12,794   5,456  
Write-off 771   6,681  
Impairment loss 7,332   34,458  
Translation difference 354   (132)  
Ending balance (5,188,970)   (4,826,779) (4,419,261)
Office furniture, fittings and equipment [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance 41,417      
Ending balance 38,720 5,397 41,417  
Office furniture, fittings and equipment [member] | Cost [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance 234,144   232,329  
Additions 12,734   7,151  
Disposal of subsidiary     (5,568)  
Disposals (666)   (772)  
Transfers 3,865   4,593  
Write-off (4,521)   (3,229)  
Translation difference 1,110   (360)  
Ending balance 246,666   234,144 232,329
Office furniture, fittings and equipment [member] | Accumulated depreciation, amortization and impairment [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance (192,727)   (179,987)  
Charge for the year 19,439   21,568  
Disposal of subsidiary     5,175  
Disposals 610   687  
Write-off 4,479   3,123  
Impairment loss     438  
Translation difference 869   (281)  
Ending balance (207,946)   (192,727) (179,987)
Motor and transport vehicles [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance 27,741      
Ending balance 24,090 $ 3,358 27,741  
Motor and transport vehicles [member] | Cost [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance 93,647   116,537  
Additions 913   300  
Disposals (2,272)   (23,039)  
Transfers 447      
Write-off (262)   (171)  
Translation difference 63   20  
Ending balance 92,536   93,647 116,537
Motor and transport vehicles [member] | Accumulated depreciation, amortization and impairment [member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Beginning balance (65,906)   (74,262)  
Charge for the year 4,867   10,515  
Disposals 2,119   18,779  
Write-off 249   161  
Impairment loss     48  
Translation difference 41   21  
Ending balance ¥ (68,446)   ¥ (65,906) ¥ (74,262)