Ventspils, LatviaSIA VK Tranzīts is a holding company, which unites several of the largest companies of the Freeport of Ventspils: biodiesel, rapeseed oil and rapeseed cake producer SIA Bio-Venta (the largest biodiesel production complex in the Baltic states), SIA VK Terminal Services (provides a wide range of services to several port terminals: unloading of liquid ammonia, petroleum and chemical products as ...