Anti-dumping duty on ursodeoxycholic acid to offset dumped imports from China PR and Korea RP under reference-price mechanism. Definitive anti-dumping duty is imposed on imports of Ursodeoxycholic Acid from China PR and Korea RP, calculated as the difference between landed value and specified reference prices per unit where landed value is lower. The notification specifies tariff coverage, producer-specific and residual reference prices, unit and currency, clarifies landed value as assessable value under the Customs Act excluding certain duties, and mandates the exchange rate and relevant date for conversion. The duty is payable in Indian currency and effective for a five-year period from the provisional-duty commencement date, subject to exclusion for a specified lapse period.