Orrick Herrington & Sutcliffe, Ropes & Gray and Cleary Gottlieb Steen & Hamilton have lined up to advise on the management buyout of China's largest technology outsourcing company, Pactera Technology International.

The $680.3m (£448m) deal is the latest in a string of Asian take-privates, whereby Chinese business managers are delisting their companies from US stock exchanges in tandem with private equity groups.

Nasdaq-listed Pactera said on Monday that its board of directors had received a proposal from a buyer consortium to acquire all the outstanding shares in the company that it does not own, for $7.50 (£4.95) per share.

The consortium includes New York private equity group Blackstone, Pactera chairman Chris Chen, chief executive Tiak Koon Loh and executive committee members, David Chen, Sidney Huang and Jun Su.

Acting for Pactera is Orrick, with a team led by Shanghai corporate partner Jeffrey Sun and San Francisco based M&A partner Richard Smith.

Ropes is representing the Blackstone-led buyer group consortium, with corporate partners Gary Li and Paul Boltz in Hong Kong heading up alongside the firm's managing partner David Chapin in Boston and co-head of the firm's M&A practice and Chicago office head James Lidbury. Citigroup Global Markets is acting as financial advisor to the group.

Cleary is meanwhile advising the management members of the consortium, with China-based partners W. Clayton Johnson and Ling Huang leading.

Beijing-head-quartered Pactera was incorporated in the Cayman Islands, and formed in 2012 via a merger between HiSoft Technology International and VanceInfo Technologies.

The proposal to take the company private comes just days after Chinese telecom software provider AsiaInfo-Linkage accepted a similar management buyout proposal from a consortium led by CITIC Capital Partners.

Meanwhile, the largest ever leveraged buyout in China, that of Focus Media by a Carlyle-led consortium for a price of $3.7bn (£2.4bn), also received shareholder approval last month.

According to a statement from Pactera, the transaction will be financed with a combination of equity capital from the buyer consortium and third-party debt.

The company added that its board of directors will form a special committee of independent directors to consider the buyouy proposals, which will inevitably bring a Cayman Islands law firm into the deal.