Established in 2015, Mechanical and Marine Engineering National Exposition (MMENE UI) is an annual competition event held by the Department of Mechanical Engineering Universitas Indonesia. This year the competition will be held online with an exciting series of webinars and competitions. MMENE UI 2021 will become a platform for future leaders to develop critical, creative, innovative, and comprehensive thinking to solve sustainability problems in the engineering industry. This year's theme is the Sailing To Sustainability, and our goals are: - more than 90+ innovative solution from reputable university students in Indonesia - 800+ accumulative viewers from webinar series and grand summit event - 8+ speakers from professional and academic backgrounds to discuss sustainability in the engineering industry.