Quantitative disclosures fair value measurement hierarchy for assets (liabilities) as of December 31, 2017:

		Fair value measurement using
	Date of valuation	Total			Quoted prices in active markets		Significant observable inputs			Significant unobservable inputs
					(Level 1)		(Level 2)			(Level 3)
		US$’000			US$’000		US$’000			US$’000
Fair value information:
Available-for-sale financial assets (Note 11.1)
Unquoted equity shares
Thai Metal Processing Co., Ltd.	December 31, 2017		2,747			—		—			2,747
Other current financial assets (liabilities) - derivatives (Note 11.1)
Foreign exchange forward contract	December 31, 2017		(139	)		—		(139	)		—
Assets for which fair values are disclosed:
Investment properties (Note 17)
Land	December 31, 2017		9,548			—		—			9,548
Office buildings	December 31, 2017		1,303			—		—			1,303

Quantitative disclosures fair value measurement hierarchy for assets (liabilities) as of December 31, 2016:

		Fair value measurement using
	Date of valuation	Total		Quoted prices in active markets (Level 1)		Significant observable inputs (Level 2)		Significant unobservable inputs (Level 3)
		US$’000		US$’000		US$’000		US$’000
Fair value information:
Available-for-sale financial assets (Note 11.1)
Unquoted equity shares
Thai Metal Processing Co., Ltd.	December 31, 2016		2,765		—		—		2,765
Other current financial assets (liabilities) - derivatives (Note 11.1)
Foreign exchange forward contract	December 31, 2016		187		—		187		—
Assets for which fair values are disclosed:
Investment properties (Note 17)
Land	December 31, 2016		8,851		—		—		8,851
Office buildings	December 31, 2016		924		—		—		924