Investor Presentaiton

Can ALPS treated water be safely discharged into the sea? ➤ Liquid radioactive waste is discharged into the sea at various nuclear facilities around the world based on the common international understanding of safety. Canada Darlington NPP Liquid About 100 TBq UK Sizewell B NPP Liquid About 23 TBq Steam UK⚫Sellafield reprocessing facility About 0.7 TBq (in 2020) Steam Liquid About 186 TBq About 38 TBq (in 2020) ROK ⚫Wolseong NPP Liquid About 71 TBq Steam About 92 TBq (in 2021) Canada Bruce A,B NPP Liquid Steam About 1094 TBq About 793 TBq (in 2019) Steam About 223 TBq (in 2019) UK⚫Haysham 2 NPP Liquid: About 323 TBq Germany. Gundremmingen B-C NPP Liquid About 1.4 TBq US Diablo Canyon ROK Kori NPP Canada Pickering NPP Units 1,2 NPP Steam About 1.2 TBq (in 2020) Steam About 0.1 TBq Liquid Steam About 49 TBq About 21 TBq Liquid About 430 TBq Liquid About 82 TBq Steam About 2.7 Steam (in 2021 ) About 560 TBq (in 2019) TBq (in 2019) (in 2019) Slovenia ⚫ Krsko NPP Liquid About 14 TBq (in 2019) Romania Cernavoda Unit1 NPP Liquid About 140 TBq Steam About 152 TBq (in 2018) France La Hague reprocessing plant Liquid Steam About 11400 TBq About 58 TBq (in 2020) France • Tricastin NPP About 39 TBq About 1.0 TBq (in 2020) China⚫ Ningde NPP Liquid: 98 TBq Japan Fukushima Daiichi NPP Liquid About 2.2 TBq Steam About 1.5 TBq (in 2010) Avg. BWRs in Japan (2008-2010) Liquid : 0.03 - 1.9 TBq Steam: 0.08 - 1.9 TBq Avg. PWRs in Japan (2008-2010) Liquid: 18 - 83 TBq Steam: 0.4 - 13 TBq China Hongyanhe NPP Liquid : 87 TBq Steam : 1.9 TBq (in 2019) Steam Steam: 1.0 TBq Taiwan Maanshan NPP Liquid About 32 TBq Steam (in 2018) About 9.8 TBq (in 2020) China • Yangjiang NPP Liquid 107 TBq Steam 1.2 TBq (in 2019) China Qinshan Phase III NPP Liquid: 124 TBq Steam 114 TBq Spain Cofrentes NPP Liquid About 0.9 TBq Steam About 0.8 TBq Liquid (in 2018) Steam Spain Asco Unit1 NPP Liquid About 27 TBq Steam About 0.5 TBq (in 2018) Source UK Radioactivity in Food and the Environment, 2020, 2021 Canada Regulatory Oversight Report for Nuclear Power Generating Sites: 2019, 2021 France LIVRE BLANC TRITIUM, 2022 (in 2019) Other countries and regions Prepared from reports published by electricity providers in various countries and regions. US⚫ Grand Gulf NPP Liquid About 0.8 TBq About 0.8 TBq (in 2019) US Brunswick Units1,2 NPP Liquid Steam About 3.7 TBq About 6.0 TBq (in 2019) * Numbers indicate the amount of tritium emissions. BWR or ABWR PWR AGR Reprocessing facility CANDU or HWR <Ref. 1×1012 Bq about0.019g (Tritiated water) 14

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