10.

Earnings per share

Basic earnings per share amounts are calculated by dividing the profit for the year attributable to ordinary equity holders of the parent by the weighted average number of ordinary shares outstanding during the year.

Diluted earnings per share amounts are calculated by dividing the profit attributable to ordinary equity holders of the parent by the weighted average number of ordinary shares outstanding during the year plus the weighted average number of ordinary shares that would be issued on conversion of all the dilutive potential ordinary shares into ordinary shares.

Basic earnings per share

The calculation of basic earnings per share is based on:


	31.12.2015		31.12.2016		31.12.2017		31.12.2017
	RMB’000		RMB’000		RMB’000		US$’000
Profit attributable to ordinary equity holders of the parent		341,108		515,737		953,922		150,713

Weighted average number of ordinary shares		38,712,282		40,016,808		40,764,569		40,764,569

Diluted earnings per share

The weighted average number of ordinary shares adjusted for the effect of unissued ordinary shares under the Share Option Scheme is determined as follows:


	31.12.2015		31.12.2016		31.12.2017
Weighted average number of shares issued, used in the calculation of basic earnings per share		38,712,282		40,016,808		40,764,569
Diluted effect of share options		—		—		—

Weighted average number of ordinary shares adjusted for effect of dilution		38,712,282		40,016,808		40,764,569

In 2017, 470,000 (2016: 530,000; 2015: 570,000) share options granted to employees under the existing employee share option plan have not been included in the calculation of diluted earnings per share because they are anti-dilutive.