v3.26.1
Property And Equipment, Net (Tables)
12 Months Ended
Dec. 31, 2025
Property, Plant and Equipment [Abstract]  
Summary of property and equipment
Property and equipment consist of the following:
 
    
As of December 31,
 
    
2024
    
2025
 
    
RMB
    
RMB
    
US$
 
Machinery and laboratory equipment
     272,231        273,051        39,045  
Vehicles
     1,572        1,572        224  
Furniture and tools
     14,660        14,189        2,029  
Electronic equipment
     52,203        44,895        6,420  
Leasehold improvements
     187,225        187,028        26,744  
Construction in progress
     634        634        91  
  
 
 
    
 
 
    
 
 
 
    
528,525
    
521,369
    
74,553
 
Accumulated depreciation
     (448,194      (457,973      (65,488
Accumulated impairment
     (33,179      (32,297      (4,618
  
 
 
    
 
 
    
 
 
 
Total
  
 
47,152
 
  
 
31,099
 
  
 
4,447