Korea began a decontamination process Tuesday as it prepares to dismantle the country's first commercial Kori-1 nuclear reactor, the country's state-run energy firm said. This marks the first time ...

The energy ministry estimated that decommissioning the Kori-1 reactor, the oldest reactor in Ulsan that was shut down in June, will cost 719.4 billion won. It will take over 15 years to dismantle ...