Minter Ellison and Johnson Winter & Slattery have the lead roles on Hong Kong tycoon Li Ka-shing’s $2.2 proposed billion acquisition of Australian natural gas distributor Envestra Ltd.

A group of companies controlled by Li, including Cheung Kong (Holdings) Ltd., Cheung Kong Infrastructure Holdings Ltd. and Power Assets Holdings Ltd., trumped an earlier $1.8 billion offer for the outstanding 83 percent of Envestra’s shares made by Australia’s APA Group.