Anti-dumping duty extension for Caustic Soda from Chinese Taipei; duties on other origins allowed to lapse. The Central Government amends Notification No.79/2011-Customs to extend anti-dumping duty on Caustic Soda from Chinese Taipei for one year and to allow duties on Thailand and Norway to lapse; it substitutes the Table entry for serial number 6 in column (5) with 'Any country other than attracting anti-dumping duty' and inserts a paragraph stating that duties on the subject goods at serial numbers 4, 5 and 6 shall remain in force up to and inclusive of 22nd August, 2017 unless revoked earlier.