Additional Information of Expenses by Nature (Tables)

12 Months Ended

Dec. 31, 2017


	Years Ended December 31
	2015		2016		2017
	NT$		NT$		NT$
	(In Millions)		(In Millions)		(In Millions)
a. Depreciation of property, plant and equipment
Recognized in cost of revenue	$	204,126.2	$	203,476.8	$	235,985.2
Recognized in operating expenses		15,152.2		16,583.1		19,746.3
Recognized in other operating income and expenses		25.0		25.1		64.5


	$	219,303.4	$	220,085.0	$	255,796.0

b. Amortization of intangible assets
Recognized in cost of revenue	$	1,642.1	$	2,028.5	$	2,135.5
Recognized in operating expenses		1,560.1		1,714.9		2,211.2


	$	3,202.2	$	3,743.4	$	4,346.7


	Years Ended December 31
	2015		2016		2017
	NT$		NT$		NT$
	(In Millions)		(In Millions)		(In Millions)
c. Research and development expenses	$	65,544.6	$	71,207.7	$	80,732.5

d. Employee benefits expenses
Post-employment benefits
Defined contribution plans	$	2,002.6	$	2,164.9	$	2,369.9
Defined benefit plans		278.9		272.2		271.5

		2,281.5		2,437.1		2,641.4
Other employee benefits		88,929.4		97,248.0		101,488.7


	$	91,210.9	$	99,685.1	$	104,130.1


Employee benefits expense summarized by function
Recognized in cost of revenue	$	52,983.2	$	58,493.5	$	61,026.1
Recognized in operating expenses		38,227.7		41,191.6		43,104.0


	$	91,210.9	$	99,685.1	$	104,130.1