1 Chemicals used in oil and gas production and operation services, namely, drill-in fluids, completion fluids, and well fraction fluids; chemical additives and fluids used in oil field servicing industry; chemicals used as deicers; chemicals used in agriculture namely for soil amendment and plant nutrients; chemicals used in dust suppression in the agriculture and mining industries as well as the maintenance of roadways and unpaved surfaces industry; chemicals used in food processing namely nutrient preservatives; chemicals used in processing in the oil and gas and specialty chemicals industries; dehumidifying preparations for industrial use.