UPDATE 1-Delta Air Lines, trust offer to raise Aeromexico stake to up to 49 pct
November 18, 2015 at 18:40 PM EST
Nov 18 (Reuters) - Delta Air Lines Inc said Wednesday it intends to buy up to an additional 32 percent of Grupo Aeromexico SAB de CV, in what could be a nearly $600 million cash deal that strengthens its grip on a fast-growing market.