The takeover of SAB by the owner of Budweiser and Stella Artois will create a brewing behemoth and the deal is drawing the scrutiny of competition authorities around the world. AB InBev has already agreed a $12bn deal to sell SAB’s 58pc stake the American MillerCoors venture to Molson Coors to ward off the attentions of the US regulator, and the disposal of the London-listed stake in the Chinese Snow lager business is also considered highly likely.