v3.26.1
PROPERTY, EQUIPMENT AND SOFTWARE, NET
12 Months Ended
Dec. 31, 2025
PROPERTY, EQUIPMENT AND SOFTWARE, NET  
PROPERTY, EQUIPMENT AND SOFTWARE, NET

4. PROPERTY, EQUIPMENT AND SOFTWARE, NET

Property, equipment and software consisted of the following:

As of December 31, 

  ​ ​ ​

2024

  ​ ​ ​

2025

US$

US$

Machinery and laboratory equipment

5,116,503

 

5,232,597

Leasehold improvements

1,030,798

 

1,054,204

Electronic equipment

1,793,132

 

1,818,366

Furniture and tools

49,085

 

50,035

Vehicles

77,767

 

43,635

Software

358,952

 

364,586

Total property, equipment and software

8,426,237

 

8,563,423

Less: accumulated depreciation and amortization

(7,300,848)

 

(7,846,049)

Net book value

1,125,389

 

717,374

Depreciation and amortization expenses recognized for the years ended December 31, 2023, 2024 and 2025 were US$980,053, US$722,950 and US$438,864 respectively.