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Financial risk management objectives and policies (Tables)

12 Months Ended

Dec. 31, 2017

Statement [LineItems]

Maturity Profile of Financial Assets and Liabilities Based on Contractual Undiscounted Payments

The table below summarizes the maturity profile of the Group’s financial assets and liabilities based on contractual undiscounted payments.

		One year or less				Two to five years				More than five years				Total
As at December 31, 2016		RMB’000				RMB’000				RMB’000				RMB’000
Financial assets
Trade and bills receivables			7,111,890				—				—				7,111,890
Other receivables, excluding tax recoverable			246,687				1,588				—				248,275
Cash and bank balances			4,052,957				—				—				4,052,957
Held for trading investment and derivative not designated as hedges – foreign exchange forward contract			12,181				—				—				12,181
			11,423,715				1,588				—				11,425,303
Financial liabilities
Derivative not designated as hedges – foreign exchange forward contract			140				—				—				140
Interest-bearing loans and borrowings			909,824				18,409				—				928,233
Trade and other payables (Note 28)			6,576,468				136,772				—				6,713,240
Other liabilities			43				70				—				113
			7,486,475				155,251				—				7,641,726

		One year or less				Two to five years				More than five years				Total				Total
As at December 31, 2017		RMB’000				RMB’000				RMB’000				RMB’000				US$’000
Financial assets
Trade and bills receivables			7,075,319				—				—				7,075,319				1,117,850
Other receivables, excluding tax recoverable			132,675				620				—				133,295				21,060
Cash and bank balances			6,029,207				—				—				6,029,207				952,572
Held for trading investment			24,714				—				—				24,714				3,905
			13,261,915				620				—				13,262,535				2,095,387
Financial liabilities
Interest-bearing loans and borrowings			1,624,539				27,874				—				1,652,413				261,069
Trade and other payables (Note 28)			7,328,762				156,347				—				7,485,109				1,182,594
Other liabilities			33				46				—				79				12
			8,953,334				184,267				—				9,137,601				1,443,675

Foreign currency risk [Member]

Statement [LineItems]

Exposures to Foreign Currency

The Group’s exposures to foreign currency are as follows:

		31.12.2016
		Singapore Dollar				Euro				US Dollar				Renminbi				Others
		RMB’000				RMB’000				RMB’000				RMB’000				RMB’000
Held for trading investment			12,181				—				—				—				—
Trade and other receivables			957				9,232				15,032				31,679				982
Cash and bank balances			117,763				3,841				7,247				—				—
Financial liabilities			(33,686	)			—				(104,055	)			—				—
Trade and other payables			(12,991	)			(10,763	)			(5,873	)			(1,410	)			—
Net assets/(liabilities)			84,224				2,310				(87,649	)			30,269				982

		31.12.2017
		Singapore Dollar				Euro				US Dollar				Renminbi				Others
		RMB’000				RMB’000				RMB’000				RMB’000				RMB’000
Held for trading investment			24,714				—				—				—				—
Trade and other receivables			725				—				34,727				469				—
Cash and bank balances			418,875				1,486				16,068				—				498
Financial liabilities			(14,715	)			—				—				—				—
Trade and other payables			(13,748	)			(10,857	)			(5,574	)			(35,505	)			(24	)
Net assets/(liabilities)			415,851				(9,371	)			45,221				(35,036	)			474
US$’000			65,701				(1,481	)			7,145				(5,535	)			75

Risk Sensitivity Analysis

		Profit before tax
		31.12.2016				31.12.2017				31.12.2017
		RMB’000				RMB’000				US$’000
Singapore Dollar			8,422				41,585				6,570
Euro			231				(937	)			(148	)
US Dollar			(8,765	)			4,522				714
Renminbi			3,027				(3,504	)			(554	)

Equity price risk [Member]

Statement [LineItems]

Risk Sensitivity Analysis

A 10% increase/(decrease) in the underlying prices at the reporting date would increase/(decrease) Group’s profit before tax by the following amount:

		31.12.2016				31.12.2017				31.12.2017
		RMB’000				RMB’000				US$’000
Statement of profit or loss			1,218				2,471				390

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