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PROPERTY, PLANT AND EQUIPMENT, NET (Tables)
12 Months Ended
Dec. 31, 2025
PROPERTY, PLANT AND EQUIPMENT, NET  
Schedule of property, plant and equipment, net

As at December 31, 

2024

2025

2025

  ​ ​ ​

RMB

  ​ ​ ​

RMB

  ​ ​ ​

US$

Buildings

 

798,097

823,243

117,722

Medical equipment

 

865,416

877,850

125,531

Electronic and office equipment

 

55,202

49,128

7,025

Motor vehicles

 

2,649

2,754

394

Leasehold improvement and building improvements

 

77,683

77,894

11,139

Construction in progress

 

2,307,336

2,392,265

342,089

Total

 

4,106,383

4,223,134

603,900

Less: accumulated depreciation

 

(394,273)

(490,684)

(70,167)

Impairment charges

 

(7,785)

(7,785)

(1,113)

 

3,704,325

3,724,665

532,620