HMM welcomes HMM GREEN, a 9,000 TEU methanol-powered containership March 27, 2025 International Shipping, Shipping Line, Trade, Trending News SEOUL : HMM has welcomed HMM GREEN, a 9,000 TEU methanol-powered containership, the very first of nine eco-friendly vessels ordered in 2023. This marks a major step in our fleet expansion and sustainability efforts.