• GSN is honored to start providing Cleaning Services for Yamaha in Hanghzou. Yamaha is a leading musical instrument producer.

 
DR. ANDREAS ERMANN 
FOUNDER & MANAGING DIRECTOR 
 
 
● Holding a PhD in Economics
● Former consultant for McKinsey & Company Zurich
● In China for over 25 years
 

 

 

 

 

 
MR. BENOÎT SASSIN
HEAD OF ADMINISTRATION
 
 
● Head of the COC for Technical Services
● Holding a Master degree in Engineering
● Rich experience in construction
● In China for over 10 years
 

 
Mr. Nimrod Abarbanel
GENERAL MANAGER shanghAI
 
 
● Co-head of the COC for Security & Fire Safety 
● Holding an MBA degree
● Strong security work background
● In China over 12 years
 

 

 
Mr. ARMIN LIEBLER
GENERAL MANAGER Beijing
 
 
● Head of the COC for Security & Fire Safety
● Professional education in Security & Safety Management
● In China for over 8 years

 

 
Mr. JOACHIM CORSTIAANS
DIRECTOR OF OPERATIONS SUZHOU
 
 
● Over 13 years of experience in facility management
● Professional interpreter in Chinese languages
● Living and working in China for 20 years
 

 
Mr. Kevin han
Director of Operations shenyanG
 
● Head of the COC for Cleaning & Gardening Services
● Holding a Bachelor degree in Security Management
● Rich experience in project and property management
 

 

 

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"They entrusted us to manage their properties"