Clifford Chance (CC) and Allen & Overy (A&O) have scooped roles in Kraft Foods' purchase of part of the United Biscuits network, a deal worth $1.07bn (£600m).

CC Madrid corporate partner Jose Maria Fernandez-Daza and London corporate partner Brendan Moylan are advising Kraft. It is thought that the firm gained the role through its relationship with Philip Morris, which is also owned by New York-based Altria.

A&O is acting for United Biscuits, an existing client of the firm. A&O has acted alongside Macfarlanes on United Biscuits' purchase of Jacobs Biscuit Group in 2004. Corporate partner Susan Howard headed the team.

Ashurst, a previous adviser to Kraft, missed out on the deal due to a conflict. Ashurst and Davis Polk & Wardwell advised Kraft on its £798m sale of its sugar confectionary business to Wrigley at the end of 2004.

Under the agreement, Kraft will acquire the Spanish and Portuguese operations of United Biscuits. The Illinois-based food giant will also regain the Nabisco trademarks, including Oreo and Ritz, in the European Union, Eastern Europe, the Middle East and Africa. Kraft had sold these brands to United Biscuits in 2000. Kraft will also give up its current 25% stake in United Biscuits. The deal is expected to close in the third quarter of this year.

US firm Sutherland Asbill and Brennan tax partners Clifford Muller, J Randall Buchanan and Robert Chase worked on the tax aspects of the deal for Kraft.