The RoHS Directives(2002/95/EC) was issued in Feb, 2003. RoHS directive is Restricting of use of certain Hazardous Substances in electrical and electronic equipment. The aim of RoHS directive is ban and/or strongly reduce the application of hazardous substances Maximum allowable impurity levels of restricted substances open. The restricted substances are Mercury, Cadmium, Lead, Cr6+, PBB, PBDE. Effective date of RoHS legislation was since July 1st, 2006. RoHS Directives is an trade barrier in export company. one of special features in mobile industry has a short lifecycle. Design company has received the pressure that develope lead time should be shorten by customer. in order to meet RoHS requirements, we should prepare RoHS related activity in initial develope phase. I will show you mobile phone development procedure for RoHS in initial develope phase.