Allen & Overy is advising companies controlled by Hong Kong tycoon Li Ka-shing, Asia’s richest man, on a proposed acquisition of London-based Eversholt Rail Group for an enterprise value of $3.75 billion.

A joint venture between Cheung Kong Infrastructure Holdings Ltd. and Cheung Kong (Holdings) Ltd. is buying the rolling stock operating company from a consortium of investors that comprises U.K. private equity funds 3i Infrastructure and STAR Capital Partners, Morgan Stanley Infrastructure Partners and their co-investor PGGM NV, the Dutch asset manager.