title: JCO (company)
text: # JCO (company)
  
  JCO is a Japanese nuclear fuel cycle company established in October 1979 as a wholly owned subsidiary of Sumitomo Metal Mining Co., Ltd. as Japan Nuclear Fuel Conversion Co. 日本核燃料コンバージョン (Nihon Kakunenryō Konbājon). As of 2000, stock capitalization was US$1 billion.
  
  ## Timeline
  
  * 1979 JCO was founded
  * 1980 Sumitomo Metal Mining Co., Ltd. conversion activities were handed over to JCO
  * 1983 The second factory building at Tokaimura was completed
  * 1998 The name was changed to just JCO
  * 1999 Tokaimura nuclear accident
  * 2003 Uranium conversion activities stopped
  