Investments in affiliates (Tables)

12 Months Ended

Dec. 31, 2023

Investments in affiliates

Investments in affiliates

	December 31,
	2023			2022
Zhejiang Tianlan Environmental Protection Technology Co. Ltd.
Interest held		19.4	%		19.4	%
	US$’000			US$’000
Long-term investment, at cost, less impairment		5,540			5,540
Share of undistributed profits		4,316			2,711
		9,856			8,251

Summary of the financial information of the affiliates

	December 31,
	2023			2022
Balance Sheet:	US$’000			US$’000
Current assets		51,683			54,228
Non-current assets		10,909			13,167
Total assets		62,592			67,395
Total liabilities		(26,374	)		(38,582	)
Total shareholders’ equity		36,218			28,813

	Year ended December 31,
	2023		2022
Operating results:	US$’000		US$’000
Net sales		38,530		59,983
Operating income		337		1,175
Net income		9,978		2,346