▽財団法人 日本海事協会 品質システム審査登録(Quality NK) ●05/14 21:49 14 May Beware of Fraudulent Billings Impersonating a ClassNK Staff12 May ClassNK releases “Guidelines for Safety Operation for Ammonia-Fueled Vessels”- supporting the introduction of alternative fuel vessels by covering points of attention in onboard activities -12 May ClassNK releases “Guidelines for Safety Operation for Ammonia-Fueled Vessels”- supporting the introduction of alternative fuel