Approvals & Certificates


Nippon Kaiji Kyokai, known as ClassNK or NK, is a ship classification society. The Society is actively engaged in a growing range of ship related activities and services aimed at contributing to promoting the protection of human life and property at sea as well as protection of the marine environment.

Foundry Approvals(Approval for castings)

- Carbon Steel Castings

- Stainless Steel Castings

- Gray Iron Castings

- Spheroidal Graphite Iron Castings