The carrying amounts of each class of other intangible assets were as follows:

	December 31
	2016 (Retrospectively Adjusted)		2017
	NT$		NT$		US$ (Note 4)

Customer relationships	$	194,089	$	113,776	$	3,839
Computer software		943,527		864,331		29,161
Patents and acquired specific technology		359,227		319,402		10,776
Others		120,418		109,356		3,689

	$	1,617,261	$	1,406,865	$	47,465

For the year ended December 31, 2015

	Customer relationships			Computer software			Patents and acquired specific technology			Others			Total
	NT$			NT$			NT$			NT$			NT$

Cost

Balance at January 1, 2015	$	1,579,015		$	2,882,932		$	2,139,138		$	184,409		$	6,785,494
Additions		-			481,412			209			9,514			491,135
Disposals or derecognization		(663,379	)		(8,426	)		(1,983,914	)		(204	)		(2,655,923	)
Reclassification		-			12,360			-			-			12,360
Effect of foreign currency exchange differences		-			(29,918	)		(1,351	)		(381	)		(31,650	)

Balance at December 31, 2015	$	915,636		$	3,338,360		$	154,082		$	193,338		$	4,601,416

Accumulated amortization

Balance at January 1, 2015	$	1,077,514		$	2,084,805		$	2,118,254		$	37,050		$	5,317,623
Amortization expense		227,099			325,856			9,461			17,478			579,894
Disposals or derecognization		(663,379	)		(7,402	)		(1,983,914	)		-			(2,654,695	)
Reclassification		-			3,190			-			-			3,190
Effect of foreign currency exchange differences		-			(21,411	)		(5,415	)		137			(26,689	)

Balance at December 31, 2015	$	641,234		$	2,385,038		$	138,386		$	54,665		$	3,219,323

For the year ended December 31, 2016 (Retrospectively Adjusted)

	Customer relationships			Computer software			Patents and acquired specific technology			Others			Total
	NT$			NT$			NT$			NT$			NT$

Cost

Balance at January 1, 2016	$	915,636		$	3,338,360		$	154,082		$	193,338		$	4,601,416
Additions (Note 35)		-			372,188			301,351			1,605			675,144
Disposals or derecognization		(41,099	)		(80,537	)		(1,310	)		-			(122,946	)
Reclassification		-			-			786			-			786
Acquisitions through business combinations		41,099			-			64,380			30			105,509
Effect of foreign currency exchange differences		-			(77,782	)		(4,846	)		(2,581	)		(85,209	)

Balance at December 31, 2016	$	915,636		$	3,552,229		$	514,443		$	192,392		$	5,174,700

(continued)

	Customer relationships			Computer software			Patents and acquired specific technology			Others			Total
	NT$			NT$			NT$			NT$			NT$

Accumulated amortization

Balance at January 1, 2016	$	641,234		$	2,385,038		$	138,386		$	54,665		$	3,219,323
Amortization expense		121,412			345,836			24,154			17,421			508,823
Disposals or derecognization		(41,099	)		(58,765	)		(1,310	)		-			(101,174	)
Reclassification		-			-			786			-			786
Acquisitions through business combinations		-			-			483			23			506
Effect of foreign currency exchange differences		-			(63,407	)		(7,283	)		(135	)		(70,825	)

Balance at December 31, 2016	$	721,547		$	2,608,702		$	155,216		$	71,974		$	3,557,439

(concluded)

For the year ended December 31, 2017

	Customer relationships		Computer software			Patents and acquired specific technology			Others			Total
	NT$		NT$			NT$			NT$			NT$
Cost

Balance at January 1, 2017 (retrospectively adjusted)	$	915,636	$	3,552,229		$	514,443		$	192,392		$	5,174,700
Additions		-		265,497			-			12,328			277,825
Disposals		-		(83,595	)		(123,744	)		(4,978	)		(212,317	)
Effect of foreign currency exchange differences		-		(47,679	)		(1,213	)		(988	)		(49,880	)

Balance at December 31, 2017	$	915,636	$	3,686,452		$	389,486		$	198,754		$	5,190,328

Accumulated amortization

Balance at January 1, 2017 (retrospectively adjusted)	$	721,547	$	2,608,702		$	155,216		$	71,974		$	3,557,439
Amortization expense		80,313		316,580			43,493			17,280			457,666
Disposals		-		(72,481	)		(123,743	)		-			(196,224	)
Effect of foreign currency exchange differences		-		(30,680	)		(4,882	)		144			(35,418	)

Balance at December 31, 2017	$	801,860	$	2,822,121		$	70,084		$	89,398		$	3,783,463

	Customer relationships		Computer software			Patents and acquired specific technology			Others			Total
	US$ (Note 4)		US$ (Note 4)			US$ (Note 4)			US$ (Note 4)			US$ (Note 4)
Cost

Balance at January 1, 2017 (retrospectively adjusted)	$	30,892	$	119,846		$	17,356		$	6,491		$	174,585
Additions		-		8,957			-			416			9,373
Disposals		-		(2,820	)		(4,175	)		(168	)		(7,163	)
Effect of foreign currency exchange differences		-		(1,609	)		(41	)		(34	)		(1,684	)

Balance at December 31, 2017	$	30,892	$	124,374		$	13,140		$	6,705		$	175,111

Accumulated amortization

Balance at January 1, 2017 (retrospectively adjusted)	$	24,343	$	88,012		$	5,237		$	2,428		$	120,020
Amortization expense		2,710		10,681			1,467			583			15,441
Disposals		-		(2,445	)		(4,175	)		-			(6,620	)
Effect of foreign currency exchange differences		-		(1,035	)		(165	)		5			(1,195	)

Balance at December 31, 2017	$	27,053	$	95,213		$	2,364		$	3,016		$	127,646