On 23 April 2013, the Eurasian Economic Commission of the Customs Union of Russia, Belarus and Kazakhstan announced a temporary waiver of import duties on terephthalic acid and its salts to be in force between 1 May 2013 and 30 April 2014. In 2016, the waiver was extended until 1 January 2016. Three further extensions, in 2016, 2018 and 2020 respectively, extended the waiver until 1 January 2018, 2020 and 2022, respectively. The goods under question are subject to a statutory import duty of 5%.