China National Chemical Engineering & Construction Corporation Seven (CC7), a subsidiary of state-owned China National Chemical Engineering Company, has signed FEED and EPC contracts with Hyphen Hydrogen Energy for what will be the world’s largest green ammonia facility. The agreement, witnessed by China Chemical Chairman Mo Dingge and Hyphen CEO Marco Raffinetti, covers the 3GW renewable-powered project in Namibia designed to produce 2.4 million tonnes of ammonia per year.