RIYADH: Saudi Arabia Refineries company plans to build the world"s largest algae farm on 1,400 hectares of land, Chairman Aiad Mohammad Mushaikh told Asharq. He said SARCO has signed an alternative energy development agreement with Christoph Global, adding that the agreement is very important for their entry into investments in this sector. The benefit that the Kingdom will gain from this project is that it will help reduce carbon emissions by a very large percentage while providing many job opportunities for Saudi youth, Meshaikh added.