Additional Information of Expenses by Nature (Tables)

12 Months Ended

Dec. 31, 2018


	Years Ended December 31
	2016		2017		2018
	NT$		NT$		NT$
	(In Millions)		(In Millions)		(In Millions)
a. Depreciation of property, plant and equipment
Recognized in cost of revenue	$	203,476.8	$	235,985.2	$	264,804.7
Recognized in operating expenses		16,583.1		19,746.3		23,292.3
Recognized in other operating income and expenses		25.1		64.5		27.9


	$	220,085.0	$	255,796.0	$	288,124.9

b. Amortization of intangible assets
Recognized in cost of revenue	$	2,028.5	$	2,135.5	$	2,073.5
Recognized in operating expenses		1,714.9		2,211.2		2,347.9


	$	3,743.4	$	4,346.7	$	4,421.4


c. Research and development costs expensed as incurred	$	71,207.7	$	80,732.5	$	85,895.6


	Years Ended December 31
	2016		2017		2018
	NT$		NT$		NT$
	(In Millions)		(In Millions)		(In Millions)
d. Employee benefits expenses
Post-employment benefits
Defined contribution plans	$	2,164.9	$	2,369.9	$	2,568.9
Defined benefit plans		272.2		271.5		281.8

		2,437.1		2,641.4		2,850.7
Other employee benefits		97,248.0		101,488.7		105,364.2


	$	99,685.1	$	104,130.1	$	108,214.9

Employee benefits expense summarized by function
Recognized in cost of revenue	$	58,493.5	$	61,026.1	$	63,597.7
Recognized in operating expenses		41,191.6		43,104.0		44,617.2


	$	99,685.1	$	104,130.1	$	108,214.9