Intangible assets, net

Year ended December 31, 2018	Information system projects			Licenses, patents and trademarks (*)			Goodwill			Customer relationships		Total

Cost
Values at the beginning of the year		560,692			465,963			2,090,073			2,058,859		5,175,587
Translation differences		(6,153	)		(183	)		(4,137	)		-		(10,473	)
Additions		31,632			273			-			-		31,905
Transfers / Reclassifications		(5,493	)		-			-			-		(5,493	)
Disposals		(56	)		(1,482	)		-			-		(1,538	)
Values at the end of the year		580,622			464,571			2,085,936			2,058,859		5,189,988

Amortization
Accumulated at the beginning of the year		478,946			372,746			797,592			1,865,444		3,514,728
Translation differences		(5,551	)		-			-			-		(5,551	)
Amortization charge		40,635			720			-			173,537		214,892
Disposals		(46	)		-			-			-		(46	)
Accumulated at the end of the year		513,984			373,466			797,592			2,038,981		3,724,023
At December 31, 2018		66,638			91,105			1,288,344			19,878		1,465,965

Year ended December 31, 2017	Information system projects			Licenses, patents and trademarks (*)			Goodwill			Customer relationships			Total

Cost
Values at the beginning of the year		554,330			461,619			2,090,257			2,058,946			5,165,152
Translation differences		6,265			483			(184	)		(87	)		6,477
Additions		28,335			5,105			-			-			33,440
Transfers / Reclassifications		(28,371	)		(92	)		-			-			(28,463	)
Increase due to business combinations (**)		133			-			-			-			133
Disposals		-			(1,152	)		-			-			(1,152	)
Values at the end of the year		560,692			465,963			2,090,073			2,058,859			5,175,587

Amortization
Accumulated at the beginning of the year		408,373			362,292			797,592			1,734,068			3,302,325
Translation differences		5,232			-			-			-			5,232
Amortization charge		65,249			10,546			-			131,376			207,171
Transfers / Reclassifications		92			(92	)		-			-			-
Accumulated at the end of the year		478,946			372,746			797,592			1,865,444			3,514,728
At December 31, 2017		81,746			93,217			1,292,481			193,415			1,660,859

(*) Includes Proprietary Technology.

(**) Related to Garrett LLC acquisition.

The geographical allocation of goodwill for the year ended

December 31, 2018

was

$1,168.5

million for North America,

$117.1

million for South America,

$1.9

million for Europe and

$0.7

million for Middle East & Africa.

The carrying amount of goodwill allocated by CGU, as of

December 31, 2018,

was as follows:

(All amounts in million US dollar)
As of December 31, 2018	Tubes Segment						Other Segment
CGU	Maverick Acquisition		Hydril Acquisition		Other		Maverick Acquisition		Total
OCTG (USA)		225		-		-		-		225
Tamsa (Hydril and other)		-		346		19		-		365
Siderca (Hydril and other)		-		265		93		-		358
Hydril		-		309		-		-		309
Coiled Tubing		-		-		-		4		4
Confab		-		-		24		-		24
Other		-		-		3		-		3
Total		225		920		139		4		1,288