The 20 foot container which had 16,000 litres of ethanol, amounting to Rs.1,680,000 had been imported by a company based in Ratmalana from Thailand on February 05.
However, the consignment was declared as Calcium Hypochlorite Granular to the customs, bank and shipping agents, he said.
The illegal consignment, stocked in 80 barrels, would have evaded a payment of Rs. 5,808,000 if gone undetected, he added.