Gum arabic, a vital ingredient used in everything from Coca-Cola to M&M's sweets, is increasingly being trafficked from rebel-held areas of war-torn Sudan, traders and industry sources say, complicating Western companies' efforts to insulate their supply chains from the conflict.
Sudan produces around 80 percent of the world's gum arabic, a natural substance harvested from acacia trees that's widely used to mix, stabilise and thicken ingredients in mass-market products including L'Oreal lipsticks and Nestle petfood.
