- Pre-registration for new log-in system has started from June 15, 2025.
For detail information, please check the special website.
Due to maintenance, following services will be suspended on 24 Aug.(Sun);
- 0:00 to 4:30 (UTC) : NK-SHIPS、NK-PASS、e-Product、ClassNK CHEMISYS - for Designer -, ClassNK CHEMISYS - Ship in Service -
Click here if you have forgotton your password
Microsoft Edge or Google Chrome or Firefox is required to use the following ClassNK web services. The website may be inoperable or may not display properly on other browser.
- Ship in Service
- Vessel information service
- e-Application
- Online application service for surveys and audits
- NK-PASS
- Plan approval status service
- NK-SHIPS
- Comprehensive information service for ship management
- ClassNK e-Certificate
- Electronic certificate service
- PrimeShip-HULL
- User Support Site
- PrimeShip-HULL(CSR)
- User Support Site
- PrimeShip-HULL(HCSR)
- User Support Site of PrimeShip-HULL(HCSR)
- PrimeShip-HULL for Container Carriers
- User Support Site of PrimeShip-HULL for Container Carriers
- PrimeShip-HULL(PartC15)
- User Support Site of PrimeShip-HULL(PartC15)
- PrimeShip-CHEMISYS
- Integrated Database System for Chemical Products
- PrimeShip-PSC Intelligence
- PSC performance improvement support system
- ClassNK CHEMISYS - for Designer -
- Chemical products management system
- ClassNK CHEMISYS - Ship in Service -
- Chemical products management system
- TMReport
- Reporting software of thickness measurement
- e-Product
- Online application service for surveys of material and equipment
- ClassNK MRV Portal
- ClassNK MRV Portal
- Request Form
- Service request forms
- 03 Jun 2025
- Updated FAQ on Changes to Log-in System
- 16 May 2025
- Notice of change in log-in system
- 18 Jul 2025
- Website updating for “PrimeShip-HULL”
- 13 Jun 2025
- Website updating for “PrimeShip-HULL(HCSR)”
- 06 Jun 2025
- Website updating for “PrimeShip-HULL”