Ironic: two-thirds of the world is covered with water, and only 3% is fresh water. Even with 3%, there's still plenty of water; the problem - its availability in particular parts of the world, the scarcity of clean water, or diminishing sources of water because of climate change.
China and the Middle East are remedying this by building desalination plants. Desalination isn't cheap: it's expensive, energy-intensive; but with a growing population, the availability of drinkable water is a must.
Shanghai Electric Power Generation Group (SECPG), and Saudi Arabia’s ACWA Power International recently announced a partnership to work on power and desalination projects. The article can be read here.
The two countries also singed a deal that allows Chinese companies to explore and develop oil and gas projects.