Related Party Transactions (Tables)

12 Months Ended

Dec. 31, 2017

Other than disclosed elsewhere, the Company had the following significant 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$
Services provided to:
- Xiaomi Communication		27,144		113,458		214,555		32,976
- WiFire BJ		—		—		9,726		1,495
- BJ Kingsoft		7,969		19,471		8,046		1,237
- BJ Xiaomi		275		11,689		5,555		854
- BJ Cheetah		6,712		9,478		5,128		788
- Others		4,255		2,413		3,314		509

Services provided by:
- BJ Kingsoft		—		1,045		7,775		1,195
- DCSS		—		10,883		6,424		987
- CYSD		—		—		2,979		458
- WiFire BJ		—		—		1,616		248
- Others		20,023		9,178		2,632		405

Sales of equipment and property to:
- BJ Fastweb		—		—		1,021		157

Purchases of equipment and property from:
- WNT Technology		—		—		2,629		404
- DIC		—		3,079		1,234		190
- CD Xingpu		37,101		—		—		—

Loan to:
- BJ Fastweb		—		—		20,000		3,074

Loan from:
- CD Guotao		—		3,483		—		—

Interest income from loan to:
- BJ Fastweb		—		—		210		32

Management service provided by:
- DCS		16,602		—		—		—

Related Party Balances

The Company had the following related party balances as of December 31, 2016 and 2017:


	December 31,
	2016		2017
	RMB		RMB		US$
Amounts due from related parties:
Current:
- Xiaomi Communication		22,473		39,016		5,996
- Seller of iJoy		27,748		26,137		4,017
- WiFire BJ		—		15,321		2,355
- SH Fawei		—		10,332		1,588
- SH Shibei		9,800		9,800		1,506
- BJ Kingsoft		3,864		5,663		870
- WH Fastweb		—		4,600		707
- Seller of Aipu Group		98,500		—		—
- CD Xingpu		12,466		—		—
- Others		7,764		3,387		522

		182,615		114,256		17,561

Non-current:
- BJ Fastweb		—		20,210		3,106

Amounts due to related parties:
Current:
- Seller of iJoy		38,131		39,068		6,005
- Bozhi Ruihai		—		9,358		1,438
- CYSD		—		3,618		556
- BJ Kingsoft		1,105		2,070		318
- Seller of Managed Network Entities*		47,755		—		—
- Seller of Aipu Group		30,000		—		—
- CD Guotao		3,483		—		—
- Others		1,454		1,561		240

		121,928		55,675		8,557

After the disposal of WiFire Entities, Seller of Managed Network Entities was not determined as a related party of the Company, the amount due to Seller of Managed Network Entities was reclassified into accrued expenses and other payables as of December 31, 2017.

Parent Company

Related Party Transactions

The Company had the following related party balances as of December 31, 2016 and 2017:


	December 31,
	2016		2017
	RMB		RMB		US$
Amount due from subsidiaries
- 21Vianet HK		3,037,249		4,143,269		636,809
- HongKong Fastweb Holdings Co., Ltd.		60,574		61,637		9,473
- 21V Mobile		72,361		50,453		7,754
- Ventures		27,124		25,549		3,927
- WiFire Open Network Group Ltd.		—		4,170		641
- WiFire Group Inc.		4,301		653		100
- Xi’an Holding		7,011		—		—
- Others		—		12		3

		3,208,620		4,285,743		658,707

Amount due from related parties
Current:
- Seller of iJoy		27,748		26,137		4,017
- Seller of Aipu Group		70,000		—		—

		97,748		26,137		4,017

Amount due to subsidiaries
- 21Vianet Beijing		9,713		17,595		2,704
- Others		19		18		3

		9,732		17,613		2,707


	December 31,
	2016		2017
	RMB		RMB		US$
Amount due to related parties
Current:
- Seller of iJoy		38,131		39,068		6,005
- Seller of Aipu Group		30,000		—		—

		68,131		39,068		6,005