In December 2009, Emirates Nuclear Energy Corporation (ENEC) awarded a coalition led by Korea Electric Power Corporation (KEPCO) a $20 billion bid to build the first nuclear power plant in the UAE. Barakah was chosen as the site to build four nuclear reactors successively, with the first scheduled to start supplying electricity in 2017. Construction of the first reactor begun in 2012. While currently complete, operation of the reactor has been delayed to 2019/ 2020 to complete operator training up to international standards. Uranium concentrates will be supplied by the four major nuclear energy and mining companies (Areva, Rio Tinto, Uranium One, Tenex), potentially driving uranium exploration and mining in the region. Waste disposal options include "regional cooperation", which, due to repressive political atmosphere and opacity, coupled with UAE financial resources, risk externalising nuclear waste management and environmental impacts to other countries. Furthermore, due to UAE involvement in the military campaign in Yemen, there is an increased security risk to the nuclear plants due to possible military attacks. Indeed, in 2017, Houthi rebels claimed to have targeted the Barakah plant with missile. A claim that was denied by the UAE.