6.Should the definitive countervailing duties imposed by Article 1 of Commission Implementing Regulation (EU) 2018/1690note be modified or removed, the duties specified in paragraph 2 [or in Annexes I and II] will be increased by the same proportion limited to the actual dumping margin found or the injury margin found as appropriate per company and from the entry into force of this Regulation.In cases where the countervailing duty has been subtracted from the anti-dumping duty for certain exporting producers, refund requests under Article 21 of Regulation (EU) 2016/1037 shall also trigger the assessment of the dumping margin for that exporting producer prevailing during the refund investigation period. The amount to be reimbursed to the applicant for refund cannot exceed the difference between the duty collected and the combined countervailing and anti-dumping duty established in the refund investigation.