Intangible assets, net

12 Months Ended

Mar. 31, 2018

15. Intangible assets, net

	As of March 31,
	2017			2018
	(in millions of RMB)
Trade names, trademarks and domain names		8,100			14,198
User base and customer relationships		4,169			13,510
Licensed copyrights		6,087			9,182
Non-compete agreements (i)		5,915			7,820
Developed technology and patents		4,793			5,463
Others		32			225

		29,096			50,398
Less: accumulated amortization and impairment		(14,988	)		(22,933	)

Net book value		14,108			27,465


	(i)	In April 2017, the Company entered into a non-compete agreement with a former management member of Youku (Note 4(g)), with a fair value of RMB2,528 million. As of March 31, 2018, the remaining amortization period of such non-compete agreement was two years.

Amortization expenses recognized for the years ended March 31, 2016, 2017 and 2018 amounted to RMB3,278 million, RMB9,008 million and RMB13,231 million, respectively.

The estimated aggregate amortization expenses for each of the five succeeding fiscal years and thereafter are as follows:

	Amounts
	(in millions of RMB)
For the year ending March 31,
2019		6,764
2020		3,408
2021		1,962
2022		1,513
2023		1,391
Thereafter		12,427

		27,465