STO Group Was Set In 2007 And Is A Sino-Germany-Group With Three Branch Companies. These Are:
 

STO Engineering GmbH	Technical Support And Sale
Jinan STO Machinery Co.,Ltd	Producer And Sale
STO Mexico S De RL De CV	Service And Sale

Herbert Gerlach, CEO , Has Been Working In The Transformer Industry For More Than 30 Years And Is Therefore Quite Familiar With These Machines. Thus State-Of-The-Art Products Are Ensured Continously.

Furthermore Yanchao Lee, Chief Engineer, Has Gained Experience In The Transformer Industry For Even More Than 40 Years.  He Is Responsible For The Machines Design, The Production And The Technology.  Compounding The Competitive Price Due To The Production In China With The German Know-How Which Leads To Outstanding Quality, Allows The STO Group To Be A Leading Supplier In The Transformer And Generator Sector. STO-Products Are High In Number All Over The Big Cities In The World Such As Mexico, Italy, Germany, Indonesia, Hungary, USA and so on.