tokens: Cooperating exporting producers not sampled during the investigation and a sampled exporting producer not granted individual treatment were made subject to a rate of anti-dumping duty , calculated in accordance with Article 9 ( 6 ) of the basic regulation ( now Article 9 ( 6 ) of Regulation 2016 / 1036 ) , as the weighted average margin of dumping established for the parties in the sample , namely 30.6% .