42 Peacetime Standard (C) Type cargo ships were completed between April ‘40 and Nov ’43 for various shipping companies. Six were converted to temporary tankers: KANETSU, SHOEI, NITTATSU and HOZAN MARUs, UNKAI MARU No. 5 and UNKAI MARU No. 12. During the Pacific War, SHOEI and NITTATSU MARUs were under the Senpaku Uneikai (Civilian Shipping Administration) control, HOZAN MARU was requisitioned by the IJA as Army tanker No. 1081, KANETSU MARU, UNKAI MARU No. 5 and UNKAI MARU No. 12 were requisitioned by the IJN as general requisitioned tankers. All were sunk between Apr ’44 and Jul ’45 from various causes. KANETSU MARU was salvaged after the war and ultimately broken up in Jun ’69.
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