Preference shares, convertible loan and warrants (Tables)

12 Months Ended

Dec. 31, 2018

Preference shares, convertible loan and warrants [Abstract]

Schedule of reconciliation of fair value measurement series preference shares

	Series A Preference Shares			Series B Preference Shares			Series C Preference Shares			Series D Preference Shares			Total
	US$’000			US$’000			US$’000			US$’000			US$’000
At 1 January  2017		14,366			20,401			40,315			48,386			123,468
Change in fair value		(7,668	)		(11,792	)		(25,756	)		(24,847	)		(70,063	)
Translation difference		415			564			1,049			1,421			3,449
At 31 December 2017		7,113			9,173			15,608			24,960			56,854
Change in fair value of convertible preference shares		1,659			2,140			3,574			(5,305	)		2,068
Preference shares converted into ordinary shares on 19 December 2018		(8,618	)		(11,113	)		(18,842	)		(19,341	)		(57,914	)
Translation difference		(154	)		(200	)		(340	)		(314	)		(1,008	)
At 31 December 2018		–			–			–			–			–