1.Free member : 1 year free , and is no longer available later.

2.PREMIUM MEMBER : USD800 /Year ( RMB5000/Year )

3.VIP MEMBER: USD4000/Year ( RMB26800/Year )

 

For details ,please contact :

 

Member service ： service@chemdata.com ( premium member )

Member service ： VIP@chemdata.com ( VIP member )

 

Skype: chemdata

Call us : 0086-182-48-438-168 Mr. Mike