• The U.S. has initiated anti-dumping duty investigations against import of polytetrafluoroethylene (PTFE) resin from India and China, according to the U.S. Department of Commerce.
• The probe is being started to determine whether imports of PTFE resin from China and India “are being dumped in the U.S., and a countervailing duty investigation to determine whether producers of PTFE resin in India are receiving alleged unfair subsidies.
• The department has stated that the estimated dumping margins alleged by the petitioner range from 23.4%-408.9% for China and 15.8% to 128.1% for India.
• In the anti-dumping investigations, it said the department would determine whether imports of the resin from China and India were being dumped in the American market at less than fair value.
• On the other hand, it said, in the countervailing investigation, it will determine whether Indian producers of PTFE resin are receiving unfair government subsidies.
• Countries initiate anti-dumping probes to determine if the domestic industry has been hurt by a surge in below-cost imports. As a counter-measure, they impose duties under the multilateral WTO regime.
• Anti-dumping measures are taken to ensure fair trade and provide a level-playing field to the domestic industry. They are not a measure to restrict imports or cause an unjustified increase in cost of products.

About PTFE:

• The PTFE is mostly used as a non-stick coating for utensils. 
• Polytetrafluoroethylene (PTFE) is a synthetic fluoropolymer of tetrafluoroethylene that has numerous applications. The best known brand name of PTFE-based formulas is Teflon by Chemours.
• PTFE is a fluorocarbon solid, as it is a high-molecular-weight compound consisting wholly of carbon and fluorine.
• PTFE is hydrophobic: neither water nor water-containing substances wet PTFE, as fluorocarbons demonstrate mitigated London dispersion forces due to the high electronegativity of fluorine. PTFE has one of the lowest coefficients of friction of any solid.
• PTFE is used as a non-stick coating for pans and other cookware. It is non-reactive, partly because of the strength of carbon–fluorine bonds, and so it is often used in containers and pipework for reactive and corrosive chemicals.
• Where used as a lubricant, PTFE reduces friction, wear and energy consumption of machinery. It is commonly used as a graft material in surgical interventions.
• Also, it is frequently employed as coating on catheters; this interferes with the ability of bacteria and other infectious agents to adhere to catheters and cause hospital-acquired infections.

Source:TH & Wiki