l         1993  Company founded

l         1996  Set up US sales office

l         1997  Started shipping transducers for mobile phones and selling products to Motorola

l         2000  Established sales office in Europe and started mass production of miniature receivers

l         2001  Established sales office in HongKong

l         2002  Mass production of multi-function devices, polyphonic speakers and

                ECM microphones. Established R&D center in Nanjing              

l         2003  Began manufacturing headsets

l         2004  Mass production of racetrack receivers and speakers

l         2005  Qualified by mass-production for Sony-Ericsson, became a listed company on the Stock           Exchange of Hong kong in August

l         2006  Mass production of SMD microphones and pancake vibrators 　　

l         2007  Mass Production of MEMS microphones, linear vibrators and SMD vibrators