The European Court of First Instance (CFI) has annulled anti-dumping duties (of 22.7 per cent) on imports of silicon originating in Russia and exported by the SUAL International group. The CFI found that the EU anti-dumping authorities made a manifest error by stating that the EU industry’s market share had decreased significantly during the period under consideration, when in fact its market share increased by 2.4 percentage points. In addition, there was a failure to take account of harmful effects caused by factors other than Russian imports, notably contraction in demand. Independent importers of silicon from other Russian suppliers can now challenge the validity of the anti-dumping duties (of 23.6 per cent) on the same grounds as in the SUAL case.