Former nuclear fuel processor JCO Co. opened its plant in Tokai, Ibaraki Prefecture, to the media Tuesday for the first time since the worst nuclear accident in Japan's history took place there in 1999.
Operations at the plant, located some 120 km northeast of Tokyo, have been suspended since the accident on Sept. 30, 1999.
Workers at the uranium processing plant triggered a nuclear fission chain reaction when they poured too much uranium solution into a processing tank after mixing it in metal buckets.