Segment information (Tables)

12 Months Ended

Dec. 31, 2022

Segment information

Segment information

	Year ended December 31,
	2022			2021			2020
	US$’000			US$’000			US$’000
Revenue
Trading and manufacturing		9,332			9,619			9,476
Engineering		5,617			11,769			3,881
		14,949			21,388			13,357
Operating income / (loss)
Trading and manufacturing		(246	)		130			941
Engineering		590			846			(1,027	)
Unallocated corporate expenses		(230	)		(205	)		(186	)
		114			771			(272	)

	Year ended December 31,
	2022		2021		2020
	US$’000		US$’000		US$’000
Depreciation:
Trading and manufacturing		28		32		39
Engineering		5		6		10
		33		38		49
Capital expenditures, gross
Trading and manufacturing		2		1		2
Engineering		5		3		9
		7		4		11

	December 31,
	2022		2021
	US$’000		US$’000
Assets
Trading and manufacturing		13,637		7,969
Engineering		5,726		13,281
		19,363		21,250
Liabilities
Trading and manufacturing		1,300		3,428
Engineering		3,257		3,021
		4,557		6,449

Geographical analysis of revenue and assets

	Year ended December 31,
	2022		2021		2020
	US$’000		US$’000		US$’000
Revenue -
The PRC		5,878		13,217		5,072
Hong Kong		7,174		7,937		8,024
Others		1,897		234		261
		14,949		21,388		13,357

	December 31,
	2022		2021
	US$’000		US$’000
Hong Kong		8		25
The PRC		171		190
		179		215

Major suppliers and customers

	Year ended December 31,
	2022			2021			2020
Supplier A		33	%		42	%		30	%
Supplier B		21	%		13	%		10	%
Supplier C		6	%		6	%		9	%
Supplier D		5	%		6	%		6	%
Supplier E		-			5	%		5	%
Supplier F		5	%		-			-
Supplier G		5	%		-			-
Supplier H		-			-			12	%

	Year ended December 31,
	2022			2021			2020
Customer A		18	%		15	%		9	%
Customer B		9	%		-			8	%
Customer C		6	%		-			6	%