ClassNK grants Innovation Endorsement for Products & Solutions to ‘D-VESSELKEEPER January 29, 2025 International Shipping, Maritime, Trending News TOKYO : ClassNK has granted its Innovation Endorsement for Products & Solutions to ‘D-VESSELKEEPER: EEM and PHM’ developed by WinKong Marine Engineering Co., Ltd. ClassNK-registered vessels equipped with the product can be given the ‘DSS’ notations