Anti-dumping duty on Sodium Hydroxide imposed; provisional per tonne rates set to offset dumped imports from specified origins. Imposition of anti-dumping duty on Sodium Hydroxide under tariff headings 2815 11 and 2815 12 00 based on preliminary findings of dumping, material injury and causal link. The duty is set as the difference between specified foreign currency amounts per metric tonne (varying by origin/export combinations) and the landed value of imports, payable in Indian currency. The measure is provisional, identifies scope by origin, exporter and producer, and prescribes the published government exchange rate and bill of entry date for currency conversion; landed value is defined by reference to assessable value under the Customs Act.