| 1937-03 |
Kyoei Tanker Co., Ltd. established in Kobe. |
| 1937-03 |
Builds "Kyoei Maru" (742t), Japan's first clean oil tanker. |
| 1937-03 |
共栄タンカー株式会社を神戸市に設立 |
| 1937-03 |
日本初のクリーン・タンカー（ガソリン油槽船）初代共栄丸（742トン）竣工 |
| 1937-03 |
Builds "Kyoei Maru" (742t), Japan's first clean tanker (clean oil tanker). |
| 1949-07 |
Kyoei Tanker broken up under Corporate Rehabilitation Law, and Kyoei Kisen Kabushiki Kaisha is established with in-kind contribution and cession from the former Kyoei Tanker. |
| 1949-07 |
Changes corporate name to Kyoei Tanker Co., Ltd. |
| 1949-07 |
企業再建法に基づき解散し、旧共栄タンカー株式会社の現物出資及び譲渡により共栄汽船株式会社を設立 |
| 1949-07 |
共栄タンカー株式会社に社名変更 |
| 1956-09 |
Accepts on trust the operation of a tanker, M/V Tsubame Maru, owned by Maruzen Oil Co., Ltd. (present Cosmo Oil Co., Ltd.) (33,725t). |
| 1956-09 |
丸善石油株式会社（現コスモ石油）所有大型タンカーつばめ丸（33,725トン）を運航受託 |
| 1961-10 |
Lists on the First Section of Tokyo Stock Exchange. |
| 1961-10 |
東京証券取引所第1部に上場 |
| 1961-11 |
Increases capital to 1.6 billion yen. |
| 1961-11 |
資本金16億円に増資 |
| 1964-03 |
Joins NYK Group due to maritime consolidation under the Shipping Reconstruction & Development Law. |
| 1964-03 |
海運再建整備法に基づく海運集約実施により日本郵船株式会社グループに参加 |
| 1965-06 |
Relocates head office from Kobe City to Tokyo. |
| 1965-06 |
神戸市より東京八重洲のヒロセビルに本社移転 |
| 1970-09 |
Builds the VLCC, M/V "Kyoei Maru" (216,121t). |
| 1970-09 |
大型油槽船共栄丸（216,121トン）竣工 |
| 1973-12 |
Builds the VLCC, M/V "Taiei Maru" (233,380t). |
| 1973-12 |
大型油槽船太栄丸（233,380トン）竣工 |
| 1985-03 |
Accepts all seamen of Daikyo Tanker Kabushiki Kaisha, and charters three tankers: M/V "Suzuka Maru," M/V "Tokai Maru," and M/V "Daikyo Maru." |
| 1985-03 |
大協タンカー株式会社所属船員全員受け入れ、油槽船鈴鹿丸、東海丸、大協丸を用船 |
| 1985-03 |
大協タンカー株式会社所属船員全員受け入れ、油槽船鈴鹿丸、東海丸 、大協丸を用船 |
| 1986-05 |
Builds the VLCC, M/V "Cosmo Galaxy" (250,298 D/W). |
| 1986-05 |
大型油槽船コスモギャラクシィ（250,298D/W）竣工 |
| 1986-11 |
Builds the VLCC, M/V "Cosmo Venus" (250,267 D/W). |
| 1986-11 |
大型油槽船コスモビーナス（250,267D/W）竣工 |
| 1992-03 |
Increases capital to 2.85 billion yen. |
| 1992-03 |
資本金28億5千万円に増資 |
| 1992-09 |
Builds the VLCC, M/V "Cosmo Astrea" (255,396 D/W). |
| 1992-09 |
大型油槽船コスモアストリア（255,396D/W）竣工 |
| 1994-09 |
Builds the VLCC, M/V "HAN-EI" (259,999 D/W). |
| 1994-09 |
大型油槽船HAN-EI（259,999D/W）竣工 |
| 1999-11 |
Builds the VLCC, M/V "KOU-EI" (279,999 D/W). |
| 1999-11 |
当社初のダブルハル大型油槽船KOU-EI（279,999D/W）竣工 |
| 2002-01 |
Builds the VLCC, M/V "SKY WING" (295,259 D/W). |
| 2002-01 |
大型油槽船SKY WING（295,259D/W）竣工 |
| 2002-09 |
Builds the VLCC, M/V "TAIZAN" (299,992 D/W). |
| 2002-09 |
大型油槽船TAIZAN（299,992D/W）竣工 |
| 2004-09 |
Builds the VLCC, M/V "KAI-EI" (299,997 D/W). |
| 2004-09 |
大型油槽船KAI-EI（299,997D/W）竣工 |
| 2005-09 |
Builds the VLCC, M/V "JIN-EI" (299,998 D/W). |
| 2005-09 |
大型油槽船JIN-EI（299,998D/W）竣工 |
| 2007-03 |
Builds the VLCC, M/V "TOHSHI" (300,363 D/W). |
| 2007-03 |
大型油槽船TOHSHI（300,363D/W）竣工 |
| 2007-03 |
大型油槽船TOHSHI(300,363D/W)竣工 |
| 2007-09 |
All tankers became double hulls due to HAN-EI sales. |
| 2008-01 |
Builds the product tanker, M/V "CHAMPION PLEASURE" (105,852 D/W). |
| 2008-01 |
石油製品運搬船CHAMPION PLEASURE（105,852D/W）竣工 |
| 2008-01 |
石油製品運搬船CHAMPION PLEASURE(105,852D/W)竣工 |
| 2008-06 |
Builds the product tanker, M/V "CHALLENGE PEARL" (47,451 D/W). |
| 2008-06 |
石油製品運搬船CHALLENGE PEARL（47,451D/W）竣工 |
| 2008-06 |
石油製品運搬船CHALLENGE PEARL(47,451D/W)竣工 |
| 2009-07 |
Builds the product tanker, M/V "CHAMPION PROSPERITY" (115,098 D/W). |
| 2009-07 |
石油製品運搬船CHAMPION PROSPERITY（115,098D/W）竣工 |
| 2010-12 |
Charters the Bulker, M/V "KT ALBATROSS" (58,743 D/W). |
| 2010-12 |
撒積船KT ALBATROSS（58,743D/W）を竣工し、借船 |
| 2011-03 |
Builds the Bulker, M/V "KT BIRDIE" (74,886 D/W). |
| 2011-03 |
撒積船KT BIRDIE（74,886D/W）竣工 |
| 2011-04 |
Builds the product tanker, M/V "CHALLENGE PROCYON" (45,996 D/W). |
| 2011-04 |
石油製品運搬船CHALLENGE PROCYON（45,996D/W）竣工 |
| 2011-08 |
Builds the Bulker, M/V "SAGAR JYOTI" (58,110 D/W). |
| 2011-08 |
撒積船SAGAR JYOTI（58,110D/W）竣工 |
| 2011-10 |
Charters the Bulker, M/V "KT CONDOR" (58,110 D/W). |
| 2011-10 |
撒積船KT CONDOR（58,110D/W）を竣工し、借船 |
| 2011-11 |
港区三田に本社移転 |
| 2011-11 |
Relocates head office from Kudan kita, Chiyoda-ku to Mita, Minato-ku. |
| 2012-02 |
Builds the Bulker, M/V "SAGAR MOTI" (58,097 D/W). |
| 2012-11 |
Builds the Bulker, M/V "NORD SATURN" (77,288 D/W). |
| 2012-11 |
撒積船NORD SATURN（77,288D/W）竣工 |
| 2012-12 |
Builds the Bulker, M/V "SAGAR MOTI" (58,097 D/W). |
| 2012-12 |
撒積船SAGAR MOTI（58,097D/W）竣工 |
| 2012-12 |
Builds the Bulker, M/V "NORD SATURN" (77,288 D/W). |
| 2014-02 |
Builds the VLCC, M/V "KYO-EI" (313,990 D/W). |
| 2014-02 |
大型油槽船 KYO-EI（313,990D/W）竣工 |
| 2014-03 |
Builds the Bulker, M/V "ARCADIA SALUTE" (95,575 D/W). |
| 2014-03 |
撒積船 ARCADIA SALUTE（95,575D/W）竣工 |
| 2016-01 |
Builds the LPG, M/V "LEGEND PROSPERITY" (55,133 D/W). |
| 2016-01 |
Builds the Bulker, M/V "SHIN-SEKIYO" (90,781 D/W). |
| 2016-01 |
LPG船 LEGEND PROSPERITY（55,133D/W）竣工 |
| 2016-01 |
撒積船 新石洋（90,781D/W）竣工 |
| 2017-04 |
Builds the LPG, M/V "LEGEND PRESTIGE" (55,076 D/W). |
| 2017-04 |
LPG船 LEGEND PRESTIGE（55,076D/W）竣工 |
| 2018-03 |
Builds the Bulker, M/V "SHINRYO MARU" (92,049 D/W). |
| 2018-03 |
撒積船 津梁丸（92,049D/W）竣工 |
| 2018-04 |
Builds the VLCC, M/V "GEN-EI" (312,605 D/W). |
| 2018-04 |
大型油槽船 元栄（312,605D/W）竣工 |
| 2019-07 |
Builds the VLCC, M/V "TENRYU" (312,611 D/W). |
| 2019-07 |
大型油槽船 TENRYU（312,611D/W）竣工 |
| 2019-10 |
Establishes KYOEI TANKER SINGAPORE.LTD. (currently a consolidated subsidiary). |
| 2019-10 |
KYOEI TANKER SINGAPORE PTE. LTD.（現連結子会社）を設立 |
| 2020-02 |
Builds the VLCC, M/V "HOU-EI" (311,745 D/W). |
| 2020-02 |
大型油槽船 HOU-EI（311,745D/W）竣工 |
| 2020-11 |
Builds the VLCC, M/V "TENZAN" (312,524 D/W). |
| 2020-11 |
大型油槽船 TENZAN（312,524D/W）竣工 |
| 2021-09 |
Builds the VLCC, M/V "TOKIWA" (312,473 D/W). |
| 2021-09 |
大型油槽船 TOKIWA（312,473D/W）竣工 |
| 2022-02 |
Builds the LPG, M/V "MARIE" (7,483 D/W). |
| 2022-02 |
LPG船 MARIE（7,483D/W）竣工 |
| 2024-04 |
Builds the LPG, M/V "PAUL" (19,521 D/W). |
| 2024-04 |
LPG船 PAUL（19,521D/W）竣工 |
| 2025-08 |
Builds the LPG, M/V "JOSEPH" (9,585 D/W). |
| 2025-08 |
LPG船 JOSEPH（9,585D/W）竣工 |
