The proposed increase in the duty on heat exchange units, classifiable under tariff subheading 8419.40, from free of customs duty to 15% ad valorem (the WTO's bound rate). The application was lodged by GEA Aircooled Systems (Pty) Ltd who offered numerous reasons for the application including that engineering project contractors are increasingly sourcing the product from Asian countries which offers bargain prices because of government subsidies, funding packages etc.