The Eastern Siberia–Pacific Ocean oil pipeline (ESPO pipeline, Russian: Нефтепровод "Восточная Сибирь - Тихий океан" (ВСТО)) is a pipeline system for exporting Russian crude oil to the Asia-Pacific markets (Japan, China and Korea). The pipeline is built and operated by Russian pipeline company Transneft. The 4,857-kilometre (3,018 mi) pipeline is being laid by the route of Taishet-Kazachinskoye-Skovorodino-Kozmino. On 29 May 2003, Russia and China signed an agreement on construction of the pipeline. Construction of the pipeline started in April 2006. The first stage of the pipeline was completely laid in May 2009 and the whole first stage was reversed in December 2009.