In 2016, a Chinese court ruled in favour of the 3M Company against Changzhou Huawei Advanced Material Co Ltd, which sought to file an application to register the “3N” trademark. The court ruled that despite the dissimilarities in products and pricing, the mark 3N is confusingly similar to the trademark 3M, and awarded the 3M Company RMB3.5 million as damages.

ℹ️ Source: https://www.mondaq.com/southafrica/trademark/486460/chinese-court-sends-3n-packing