Unit: NT$ thousands

Item	2013	2014	Change	% of Change
Net Sales	136,055,954	213,062,916	77,006,962	56.60
Operating Costs	76,250,370	109,194,295	32,943,925	43.20
Gross Profit	59,805,584	103,868,621	44,063,037	73.68
Operating Expenses	34,561,864	56,627,311	22,065,447	63.84
Operating Income	25,243,720	47,241,310	21,997,590	87.14
Non-Operating Income and Expenses	4,303,102	5,108,645	805,543	18.72
Net Income before Income Tax	29,546,822	52,349,955	22,803,133	77.18
Income Tax Expense	2,062,172	5,950,882	3,888,710	188.57
Net Income	27,484,650	46,399,073	18,914,423	68.82
Other Comprehensive Income, net of tax	4,253,825	7,268,758	3,014,933	70.88
Total Comprehensive Income	31,738,475	53,667,831	21,929,356	69.09
Net Income Attributable to Owners of the Parent	27,515,052	46,397,892	18,882,840	68.63
Total Comprehensive Income Attributable to Owners of the Parent	31,760,633	53,627,479	21,866,846	68.85

Explanation for changes that exceed 20% and reached NT$10 million in the past two years:

Increase in net sales: Mainly due to increase in market demand.
Increase in operating costs: Mainly due to increase in operating costs associated with higher sales.
Increase in gross profit and operating income: Mainly due to increasing shipment from higher ASP products.
Increase in operating expenses: Mainly due to increase in R&D expenses.
Increase in net income before income tax, net income and net income attributable to owners of the parent: Mainly due to revenue growth.
Increase in income tax expenses: Mainly due to increase in net income.
Increase in other comprehensive income: Mainly due to foreign exchange rate movement.
Increase in total comprehensive income and total comprehensive income attributable to owners of the parent: Mainly due to increase net income and other comprehensive income.

Unit: NT$ thousands

Item	2013	2014	Change	% of Change
Net Sales	96,230,064	136,265,018	40,034,954	41.60
Operating Costs	54,894,385	67,990,658	13,096,273	23.86
Gross Profit	41,335,679	68,274,360	26,938,681	65.17
Unrealized (Realized) Gross Profit on Sales	(59,028)	59,028	118,056	N/A
Net Gross Profit	41,276,651	68,333,388	27,056,737	65.55
Operating Expenses	22,464,159	34,466,211	12,002,052	53.43
Operating Income	18,812,492	33,867,177	15,054,685	80.02
Non-Operating Income and Expenses	10,395,013	16,233,126	5,838,113	56.16
Net Income before Income Tax	29,207,505	50,100,303	20,892,798	71.53
Income Tax Expense	1,692,453	3,702,411	2,009,958	118.76
Net Income	27,515,052	46,397,892	18,882,840	68.63
Other Comprehensive Income, net of tax	4,245,581	7,229,587	2,984,006	70.28
Total Comprehensive Income	31,760,633	53,627,479	21,866,846	68.85

Explanation for changes that exceed 20% and reached NT$10 million in the past two years:

Increase in net sales: Mainly due to increase in market demand.
Increase in operating costs: Mainly due to increase in operating costs associated with higher sales.
Increase in realized gross profit on sales: Mainly because the intercompany sales last year was sold to a third party this year.
Increase in gross profit and operating income: Mainly due to increasing shipment from higher ASP products.
Increase in operating expenses: Mainly due to increase in R&D expenses
Increase in non-operating income and expenses: Mainly due to increase in net income from investments using equity method.
Increase in net income before income tax and net income: Mainly due to revenue growth.
Increase in income tax expense: Mainly due to revenue growth.
Increase in other comprehensive income: Mainly due to foreign exchange rate movement.
Increase in total comprehensive income: Mainly contributed by revenue growth and increase in other comprehensive income.