v3.26.1
Cash and Cash Equivalents and Short-term Investments
6 Months Ended
Jun. 30, 2026
Cash and Cash Equivalents and Short-term Investments  
Cash and Cash Equivalents and Short-term Investments

3.  Cash and Cash Equivalents and Short-term Investments

June 30, 

December 31,

  ​ ​ ​

2026

  ​ ​ ​

2025

(in US$000)

Cash and Cash Equivalents

Cash at bank and on hand

65,408

57,317

Bank deposits maturing in three months or less

41,149

14,013

106,557

71,330

Short-term Investments

Bank deposits maturing over three months (note)

1,268,260

1,295,945

1,374,817

1,367,275

Note: The maturities for short-term investments ranged from 92 to 185 days and 91 to 186 days for the six months ended June 30, 2026 and the year ended December 31, 2025 respectively.

Certain cash and bank balances denominated in Renminbi (“RMB”), US dollar (“US$”) and UK Pound Sterling (“£”) were deposited with banks in the PRC. The conversion of these balances into foreign currencies is subject to the rules and regulations of foreign exchange control promulgated by the PRC government. Cash and cash equivalents and short-term investments were denominated in the following currencies:

  ​ ​ ​

June 30,

  ​ ​ ​

December 31,

2026

2025

(in US$000)

US$

1,326,744

1,327,608

RMB

46,466

37,997

Hong Kong dollar (“HK$”)

1,303

1,456

£

268

193

Others

36

21

1,374,817

1,367,275