HCM - ISO 9001:2015

HCM - Information Security Managerment System - ISO/IEC 27001:2013

HCM - Occupational health and safety management system - ISO45001:2018

HN - ISO 9001:2015

HN - Information Security Managerment System - ISO/IEC 27001:2013

HN - Occupational health and safety management system

Obayashi Vietnam Capability Certificate 2022

Obayashi Vietnam Capability Certificate 2022