It's been a year since Jean-Guillaume Prats made the switch from Bordeaux winemaker at Chateau Cos d'Estournel to head up Moet Hennessy's still and sparkling wine division, Estates & Wines. In the role, the 44-year-old is spearheading the launch of the group's sparkling Chandon brands in India and China, while eyeing future opportunities in Africa. just-drinks' deputy editor, James Wilmore, tackled Prats about his vision for the unit.