Napa, Calif.—Cyril Derreumaux is the new manager of sales and distribution for Wine Grenade, a New Zealand company that produces a micro-oxygenation system. Derreumaux previously was at Laffort where he was business development manager and prior to that he was general manager at Vivelys. Derreumaux will be responsible for supporting California winemakers and developing new channels to market for Wine Grenade’s hand held devices that replicate oak barrel maturation inside steel tanks by dispersing tiny amounts of oxygen through a moving permeable membrane.