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Investor Presentaiton

[$ CSC GROUP Revenue breakdown by products in the past three years Unit : % Creosote Oils 23 24 24 32 Coal Tar Product 40 ■Soft Pitch 45 50 55 11 16 Naphthalene 19 5 15 5 5 6 LO Product 24 Benzene Toluene Coke(including processing item) ■Trading Carbon Material ■Others(Balance) 30 25 30 23 27 26 21 2 3 9 8 m co 28 13 12 3 7 LO 3 20 2 6 6 6 8 11 10 2021 2022 2023 2024 February 14

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