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Inventories (Tables)

12 Months Ended

Dec. 31, 2019

Classes Of Inventories [Abstract]

Summary of Inventories

	As of December 31,
	2019			2018
	US$’000			US$’000
Raw materials and supplies		19,712			25,717
Work in progress		19,118			15,598
Finished goods		50,309			46,592
		89,139			87,907
Allowance for inventories		(3,952	)		(3,982	)
Total inventories at the lower of cost and net realizable value		85,187			83,925