These duties were imposed as these products -- isopropyl alcohol, sulphur black, cellophane transparent film, thermoplastic polyurethane, unframed glass mirror -- were exported to India from China at below normal prices.

In five separate notifications, the Central Board of Indirect Taxes and Customs, Department of Revenue, said that the duty imposed "shall be levied for a period of five years".

The government has imposed the $ 82 per tonne and $ 217 per tonne duty on different Chinese firms on isopropyl alcohol, which has medical and industrial uses. It is also used as an antiseptic for skin and instrumentation, and hand sanitiser.

On imports of sulphur black, whose total imports in 2023-24 was $ 4.3 million, a duty of up to $ 389 per tonne has been imposed. It is used for dyeing textile, paper and leather.

Similarly, import of thermoplastic polyurethane, which has applications in automotive, medical and electronics industries, will now attract anti-dumping duty in the range of $ 0.93 per kg to $ 1.58 per kg.

The anti-dumping duty of cellophane transparent film, used as a packing material, has been kept at $ 1.34 per kg. In 2023-24, the total imports of the product stood at about $ 60 million.