Cleary Gottlieb Steen & Hamilton and Allen & Overy are among the law firms advising on the £400 million ($510 million) sale of spirits producer Loch Lomond.

Loch Lomond produces several spirit brands, including Glen's vodka and High Commissioner whisky.

It is being sold by private equity firm Exponent to Hong Kong-based investment fund Hillhouse Capital.

U.S. firm Cleary Gottlieb is advising Hillhouse Capital on the acquisition, with its team led by London M&A partner Mike Preston, with finance partner David Billington also advising.

Shepherd Wedderburn advised alongside Cleary, with the Scottish firm's food and drink head George Frier leading its team advising on due diligence matters. Environment partner Patricia Hawthorn, real estate partner Judith Stephenson and technology and IP partner Joanna Thompson are also advising.

Allen & Overy fielded a team advising Exponent, led by corporate private equity partner Gordon Milne, who has a longstanding relationship with the company.

Milne advised Exponent on its joint-purchase agreement to buy PhotoBox for about £400 million ($510 million) in 2015.

Last year, U.S. duo Sullivan & Cromwell and Cooley advised when drinks giant Diageo sold its $550 million (£426m) portfolio of brands to US spirits company Sazerac.

Diageo, which owns brands including Guinness, Smirnoff vodka and Johnnie Walker whisky, has a longstanding relationship with Sullivan. The firm advised on the company's £456.5 million ($582 million) joint venture with Dutch distiller Ketel One in 2008, and a U.S. regulatory investigation in 2011 that settled for £13 million ($144 million). Cooley advised Sazerac.