Orrick, Herrington & Sutcliffe, Skadden, Arps, Slate, Meagher & Flom, Paul, Weiss, Rifkind, Wharton & Garrison and Sullivan & Cromwell have scored key advisory roles in JD.com and Tencent Holdings Ltd’s $1.55 billion investment in Chinese auto information website operator Bitauto Holdings Ltd.

Orrick is acting as the leading legal adviser to JD.com, led by Shanghai- and Beijing-based corporate partner Jie (Jeffrey) Sun, Hong Kong-based head of  M&A and private equity practice Maurice Hoo, corporate of counsel Connie Cheung, and Shanghai-based corporate associate Lu (Echo) Wang.

Skadden is representing Bitauto, while Paul Weiss is the counsel for Tencent on the transaction.

Sullivan & Cromwell, meanwhile, is representing Credit Suisse Securities (USA) LLC (CS) which is the financial adviser to Bitauto. The team is being led by Hong Kong corporate partner Michael DeSombre with support from partner Kay Ian Ng and associate Ching-Yang Lin.

JD.com, China's No. 2 e-commerce company after Alibaba Group Holding Ltd, will invest $400 million in cash and about $750 million in resources in Bitauto, whose sites offer sales data and other information on new and used vehicles in addition to customer reviews. Tencent will pay $150 million for its shares.

Tencent and JD.com are expected to buy YiXin Capital series A preferred shares for $150 million and $100 million, respectively.

JD.com and Tencent will hold 25 percent and 3.3 percent of Bitauto's outstanding shares, respectively after the deal closes in the first half of 2015. JD.com will also get one seat on Bitauto's board. The two companies will hold 17.7 percent and 26.6 percent of YiXin Capital, respectively.

“The three companies will work together to provide enhanced online automotive transaction services to car buyers across China," Bitauto said.