High Quality Content by WIKIPEDIA articles! Qatalum is 50-50 joint venture aluminium smelter project between Qatar Petroleum and Norsk Hydro. It will be the largest aluminium plant ever launched. It is located in Mesaieed, Qatar. It will have a capacity in the first phase of 585,000 tonnes of primary aluminium, all to be shipped as value added aluminium casthouse products. A 1350 MW natural gas power plant will also be built to ensure a stable supply of electricity.