On 7 March 2013, the Commission adopted a Regulation adding two substances (Titanium silicon carbide powder of a purity by weight of 99 % or more, and Morpholino phosphorodiamidate oligomers (morpholino oligonucleotides)) on the list of biological or chemical substances that benefit from relief of customs duty when imported for non-commercial purposes under the EU’s duty relief regulation. The Commission considered that there is currently no equivalent production within the customs territory of the EU while concluding that these two substances should benefit from duty relief. At the same time, one substance – Decamethonium bromide (INN) – has been removed from the list.