Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2017

The earnings and weighted average number of ordinary shares outstanding in the computation of earnings per share were as follows:

Net profit for the year

	For the Year Ended December 31
	2015			2016 (Retrospectively Adjusted)			2017
	NT$			NT$			NT$			US$ (Note 4)

Profit for the year attributable to owners of the Company	$	19,732,148		$	21,324,423		$	22,819,119		$	769,876
Effect of potentially dilutive ordinary shares:
Employee share options issued by subsidiaries		-			(374,359	)		(813,627	)		(27,450	)
Investments in associates		(210,126	)		(494,388	)		(367,687	)		(12,405	)
Convertible bonds		901,187			(1,165,506	)		93,781			3,164

Earnings used in the computation of diluted earnings per share	$	20,423,209		$	19,290,170		$	21,731,586		$	733,185

Weighted average number of ordinary shares outstanding (in thousand shares):

	For the Year Ended December 31
	2015		2016		2017

Weighted average number of ordinary shares in computation of basic earnings per share		7,652,773		7,662,870		8,160,887
Effect of potentially dilutive ordinary shares:
Convertible bonds		455,671		515,295		124,911
Employee share options		86,994		59,218		39,868
Employees’ compensation		54,626		46,746		43,574

Weighted average number of ordinary shares in computation of diluted earnings per share		8,250,064		8,284,129		8,369,240