Restriction of Hazardous Substances has prohibited the use of four heavy metals including lead, cadmium, mercury, and hexavalent chromium and two brominated flame retardants such as PBB and PBDE in electronic and electrical equipment since July 2006. The European Union revised Directive 2011/65/EU on March 31, 2015, and issued Directive (EU) 2015/863, which pointed out that the four plasticizers of DEHP, BBP, DBP and DIBP were added to the list. In short, the 10 controlled substances regulated by RoHS 2.0 are Pb, Cd, Hg, Cr6+, PBBs, PBDEs, DEHP, BBP, DBP, DIBP.