NSC is a Founder-Member of the APOSHO set up in 1985 with the objective of strengthening regional co-operation. Today it has 29 national level OSH Organisations from 24 countries of the region as its members. NSC has played a leadership role and continues to actively contribute to its working (click for list of APOSHO Members).

On invitation from the Board of Directors of the Safety, Health & Environment Resource Centre International, USA, NSC has become its member as co-operating organisation. Its main mission is to service safety, health and environmental professionals in the world community.