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Korea Hydro & Nuclear Power (KHNP) announced Thursday it has ended construction contract negotiations with the Daewoo E&C and Doosan Enerbility consortium for the Czech Dukovany nuclear power project, citing disagreements over construction costs. The project is valued at 27 trillion won (about $20.23 billion). KHNP will terminate the joint cooperation agreement and begin procedures to select a new constructor. The news sent Daewoo E&C and Doosan Enerbility shares tumbling, according to Business Korea. Yonhap and the Korea Times also reported the breakdown, with Chosun Ilbo noting the cost disagreements as the cause.