In a negative preliminary ruling, the US International Trade Commission said it had found no reasonable indication that those imports hurt domestic industries.
PET resin is used to manufacture transparent, lightweight and shatter-proof bottles.
Imposition of anti-dumping duties requires final affirmative determinations both from the department of commerce on dumping and from the USITC on injury to the US industry.
Dumping is the import of goods at a price below the home-market or a third-country price or below the cost of production.
A dumping margin represents how much the fair-value price exceeds the dumped price.