Taxes levied on steel producers from Oman and the United Arab Emirates vary from 5.6 to 11.7 per cent, but an exporter from India, Zenith Birla Company, has to pay an anti-dumping tax of 48 per cent.
DOC says that these taxes will affect exports from four countries, estimated at nearly $200 million in 2011 alone.
In March, the DOC imposed an anti-subsidy duty of 286 per cent on steel pipes imported from India, and 0-8.1 per cent on steel pipes imported from three other countries.
New Delhi has lodged a lawsuit with the World Trade Organization (WTO).
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