• GSN is honored to start providing Cleaning Services for Amazon in Beijing for all its office sites. The overall team size is over 60 staff.

 
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 FINANCE & 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. 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
 
● Co-head of the COC for Cleaning & Gardening 
● Holding a Bachelor degree in Communication
● Worked  in government section
● In China over 14 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
 

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

 

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"They entrusted us to manage their properties"