Samsung Electronics SA (Pty) Ltd imported Samsung Galaxy S7 smartphones into South Africa in October 2016. SARS initially classified the product under tariff heading 8517.62.90 as a machine for the reception, conversion and transmission of voice, images or other data, which attracted no ad valorem customs duty. Subsequently, SARS withdrew this determination, stating it had been made in error, and reclassified the product retrospectively under tariff heading 8517.12.10 as a ‘telephone for cellular networks designed for use when carried in the hand or on the person’, which attracted customs duty. Samsung unsuccessfully appealed the reclassification to the Gauteng Division of the High Court and then appealed to the Supreme Court of Appeal.