With the rapid development of nanotechnology, nanomaterials are now widely used across many fields. At present, the most commonly used nano-materials for industrial purposes in Europe are silicon dioxide, titanium dioxide, carbon nanotubes, carbon black, and etc. According to scientific studies, the toxicity of nano-form substances and their impact on the human environment may differ from traditional substances. Therefore, since 2012, ECHA has established a Nano Expert Panel (ECHA-NMEG) to study and formulate the registration requirements and scientific as well as technical guidelines for nanomaterials under EU REACH regulations. In December 2018, the European Commission issued a REACH Regulation Amendment (Commission Regulation (EU) 2018/1881), which proposed new regulatory requirements for nanomaterials to ensure that enterprises can provide enough information for the safe use of nanomaterials. The amendment will officially be implemented on January 1, 2020. This means enterprises which have completed registration of nanomaterials will have to update their dossiers…