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Entity Subsidiaries

: Idemitsu Kosan Co., Ltd.

Subsidiary	Percentage	From	To
Fuji Oil Company Ltd.	6.66 %	01/2021	12/2050
NGHI SON REFINERY AND PETROCHEMICAL LLC	35.10 %	10/2013	12/2050
Showa Yokkaichi Sekiyu Co Ltd	75.00 %	01/2020	12/2050
Toa Oil Co., Ltd.	50.12 %	03/2017	12/2050