Ralph de Haan is a partner at MarineFifty, an investment platform driving the decarbonisation of the maritime sector. Building on the success of SkiesFifty, MarineFifty backs emerging technologies and business models that enable cleaner shipping and sustainable marine infrastructure.Before joining MarineFifty, Ralph was Vice President Business Development Power Europe & Infrastructure at Saudi Arabia’s Public Investment Fund (PIF), where he played a leading role in defining the Kingdom’s green hydrogen strategy and shaping international partnerships to support it. He led the development of projects aimed at turning Saudi Arabia into a global supplier of clean energy.Earlier, Ralph headed the business development department for green hydrogen and synthetic fuels at ENOWA, the energy company in NEOM. He also held senior roles at SABIC and Kemgo, where he worked across global supply chains, commercial strategy, and digital transformation in the chemical sector.With two decades of international experience, Ralph is committed to advancing clean technologies that not only serve climate goals but also make sense for industry at scale.