The appellant, Progress Office Machines CC, imported paper products into South Africa. Although definitive anti-dumping duties were imposed by Government Notice R685 on 28 May 1999 with purported retrospective effect to 27 November 1998, the appellant imported consignments during 2004 and was later assessed by SARS for anti-dumping duties and VAT. The dispute centred on whether the five-year lifespan of the definitive anti-dumping duty expired on 27 November 2003 (five years from the retrospective date) or on 28 May 2004 (five years from the publication date of the notice).