15 Feb 2019 --- Bartek Ingredients Inc., specialized in malic acid, food-grade fumaric acid and maleic anhydride for food and beverage applications, has completed a 4,000 ton/year capacity increase of its malic acid production facilities. The company is planning more investments as part of a series of process and production improvements planned for this year. The capacity expansion also closely follows TorQuest Partners’ acquisition of Bartek Ingredients Inc in November 2018.