New Delhi, April 1 -- The Centre has announced a one-time customs duty concession, allowing companies in special economic zones (SEZs) to sell goods in the domestic market at reduced rates of 6.5% to 15%, to help exporters make use of unused capacity amid uncertain global demand.

The relief has been granted under Section 25(1) of the Customs Act, 1962, and will come into effect from 1 April, remaining valid until 31 March 2027, according to a 31 March notification from the finance ministry.

Specified goods manufactured by SEZ units and cleared to the domestic tariff area (DTA) will attract concessional basic customs duty rates as per the detailed tariff tables, with exemption from the portion of duty exceeding the notified rates, subjec...