Property and Equipment

6 Months Ended

Jun. 30, 2018

7. Property and Equipment

Property and equipment consisted of the following:


	As of
	June 30,	December 31,
	2018	2017
	$	$
Laboratory equipment	17,986	15,596
Leasehold improvements	16,272	15,298
Manufacturing equipment	15,534	15,737
Office equipment	1,718	1,597
Electronic equipment	1,260	1,244
Computer software	1,238	598
Construction in progress	53,738	26,125
Property and equipment, at cost	107,746	76,195
Less accumulated depreciation	(17,236)	(13,627)
Property and equipment, net	90,510	62,568

As of June 30, 2018 and December 31, 2017, construction in progress of $53,738 and $26,125 primarily related to the buildout of the Guangzhou manufacturing facility. In the three months ended June 30, 2018, assets totaling $971 related to the Suzhou facilities were transferred to laboratory equipment, manufacturing equipment and leasehold improvements from construction in progress. Depreciation expense for the three and six months ended June 30, 2018 was $2,099 and $4,083, respectively. Depreciation expense for the three and six months ended June 30, 2017 was $540 and $1,404, respectively.