Asahi, Japan’s largest brewer, best known for its Super Dry lager, said it was in exclusive talks about buying SABMiller’s Grolsch, Meantime and Peroni brands for €2.6 billion. SABMiller, the world’s second-biggest brewer, is merging with the biggest, Anheuser-Busch InBev; the two are selling some assets to assuage antitrust concerns.