Anti dumping duty imposed on imports of specified phosphorous compounds, with definitive duties tied to origin and producer/exporter details. Definitive anti dumping duty is imposed on imports of Phosphorus Pentachloride (PCL5) and Trimethyl Phosphite (TMP) originating in or exported from the People's Republic of China, with duties specified by tariff sub heading and by named producer/exporter combinations. Duties apply for five years from the relevant trigger dates, are payable in Indian currency, and conversion from the stated currency is to follow the exchange rate notified under the Customs Act with the bill of entry date as the relevant date.