Workplace industrial waste collection & transportation business license

Workplace domestic waste collection & transportation business license

Specified waste collection & transportation business license

Freight vehicle transportation business license

Personal freight vehicle transportation business license (eco-friendly vehicle)

Patent on the method for reducing odor from dried sewage sludge by polymer coating

Certificate of Women Enterprise

Certificate of promising SME

Family friendly certificate

Risk assessment recognition certificate

Certificate of dedicated R&D division

Certificate of promising company