Safeguard duty on acetylene black imposed, with phased rates and specified exemptions for certain licences and developing countries. The central government imposes safeguard duty on Acetylene Black (including conductive carbons) under section 8B of the Customs Tariff Act, with phased duty rates for a two year period and specified maximums per metric tonne. Exemptions are provided for imports under defined Advance Licences contingent on exclusive use to meet export obligations or replenishment, and for imports from developing countries notified under section 8B(6)(a) except China, the Philippines, Singapore and South Africa.