In 2012 mining giant Glencore bought the remaining 66% share in Xstrata, taking over the McArthur River Mine. In 2013, the Northern Territory Government approved another $360 million expansion that would double its size and production, extending the life of the mine to 2038. Following an environmental impact study, the expansion is expected to increase production to 5.5 million tonnes per year and increase the workforce to 735 by 2020. It will extend the mine's life until 2038 and is projected to contribute $8.4 billion to the Northern Territory economy and $9.3 billion nationally.