KR Grants Approval to HD HHI’s Next Generation K-Ammonia Storage & Powered PCTC June 5, 2024 International Shipping, Maritime, Ship Building, Technology, Trending News ATHENS : KR has awarded an Approval in Principle (AiP) for the Next Generation K-Ammonia Storage & Powered PCTC, developed by HD Hyundai Heavy Industries (HD HHI) with the participation of Hyundai Glovis and