15.

RELATED PARTY TRANSACTIONS

a) Principal related parties


Name of related parties		Relationship with the Group
Tencent and its subsidiaries (“Tencent Group”)		Entities controlled by a shareholder of the Group
Kingsoft and its subsidiaries (“Kingsoft Group”)		Entities controlled by a shareholder of the Group
Matrix Partners China IV Hong Kong Limited (“Matrix Partners”)		Entities controlled by a director of the Group
Xiaomi and its subsidiaries (“Xiaomi Group”)		Entities controlled by a director of the Group
Beijing OrionStar Technology Co., Ltd. (“Beijing OrionStar”)		Entities controlled by a director of the Group
Baomi Technology		Former equity investees (note 3)

b) In addition to the transactions detailed elsewhere in these financial statements, the Group had the following material related party transactions for the years ended December 31, 2015, 2016 and 2017:


			For the years ended December 31,
			2015		2016		2017
			RMB		RMB		RMB		US$
*Corporate, technical support and leasing services received from:*	(i	)
Kingsoft Group				7,588		26,613		28,596		4,395
Tencent Group				—		—		17,399		2,674
*Licensing fees paid to:*	(ii	)
Kingsoft Group				9,129		12,162		8,435		1,296
*Promotion services received from:*	(iii	)
Kingsoft Group				28,231		22,599		8,142		1,251
Tencent Group				41,599		39,069		30,695		4,718
Xiaomi Group				47,826		59,377		61,042		9,382
*Promotion services provided to:*	(iv	)
Tencent Group				293,510		153,650		58,669		9,017
*Technical support services provided to:*	(v	)
Beijing OrionStar				—		—		10,920		1,678
*Capital injection provided to:*
Beijing OrionStar (note 4)				—		—		264,768		40,694
*Capital injection received from:*
Matrix Partners (note 19)				—		—		151,419		23,273
*Sales of products to:*
Baomi Technology	(vi	)		12,701		—		—		—

(i)	In 2015, 2016 and 2017, the Group entered into agreements with Kingsoft Group and Tencent Group, pursuant to which these entities provided services including corporate, technology support and leasing services to the Group.

(ii)

On January 1, 2009, Kingsoft Japan entered into an exclusive licensing agreement with Kingsoft Group, pursuant to which Kingsoft Group granted Kingsoft Japan the exclusive right to use certain office software within Japan and to sub-license such software to original equipment manufacturers in Japan solely for their self-use and sale of products and services.

(iii)

In 2015, 2016 and 2017, the Group entered into agreements with Kingsoft Group, Tencent Group and Xiaomi Group for promotion services ranging from one to two years.

(iv)	In 2015, 2016 and 2017, the Group entered into a series of agreements with Tencent Group to provide online advertising services.

(v)	In 2017, the Group entered into a series of agreements with Beijing OrionStar to provide technical support services.

(vi)	In 2015, the Group entered into a series of agreements with Baomi Technology to sell purifiers.

c) The balances between the Group and its related parties as of December 31, 2016 and 2017 are listed below:

(1) Amount due from related parties


	As of December 31,
	2016		2017
	RMB		RMB		US$
Kingsoft Group		15,262		16,227		2,494
Xiaomi Group		7,694		13,395		2,059
Tencent Group		14,412		11,598		1,782
Other related parties (i)		6,910		18,048		2,775

Total		44,278		59,268		9,110

(2) Amount due to related parties


	As of December 31,
	2016		2017
	RMB		RMB		US$
Kingsoft Group		26,247		16,146		2,482
Xiaomi Group		11,638		26,072		4,007
Tencent Group		26,421		36,591		5,624
Other related parties (i)		6,861		3,001		461

Total		71,167		81,810		12,574

All the balances with related parties as of December 31, 2016 and 2017 were unsecured and repayable on demand. Nil and RMB8,282 allowance for doubtful accounts was recognized for the amount due from related parties for the years ended December 31, 2015 and 2016. RMB7,312 (US$1,124) allowance for doubtful accounts was reversed for the amount due from related parties for the years ended December 31, 2017.

(i)	The balances mainly represent services received from or provided to the Group’s equity investees and entities controlled by a director of the Group in the ordinary course of business.