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Investor Presentaiton

NRA, Japan Nuclear Regulation Authority New Regulatory Requirements: Measures against Extreme Natural Phenomena ■ In order to prevent common cause failure, it is required to take measures against volcano eruption, tornadoes and forest fire, postulating severe conditions. ■ Example: Review Guide for Impacts of Phenomena ■ Assess the possibility that "severe volcanic phenomena which design cannot cope with" reach to the site during the plant life. Even if the possibility is small, it is required to conduct monitoring and develop policy on reactor shutdown, fuel unloading, etc. when volcanic unrest is identified. IAEA SSG-21 "Volcanic Hazards in Site Evaluation” gave us valuable inputs. 10 Radius 160 km 白山 A FREE NPP Pyroclastic flows at Mayon Volcano Philippines, 1984 http://en.wikipedia.org/wiki/File:Pyroclastic_flows_at_Mayon_Volcano.jpg
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