| 1954-03 |
March 1954: Establishment of Hofu Specialty Store Co., Ltd. |
| 1954-04 |
April: Opened Miyashi Store in Hofu City, selling groceries, daily necessities, clothing, etc. |
| 1954-05 |
May: Changed the company name to Marukyu Co., Ltd. |
| 1960-05 |
May 1960: Moved head office to 1-2-3 Hachioji, Hofu City, Yamaguchi Prefecture. |
| 1971-09 |
September 1971: Began travel services. |
| 1973-05 |
May 1973: Established headquarters at 1935 Mure Ukino, Hofu City, Yamaguchi Prefecture. |
| 1979-06 |
June 1979: Opened Marukyu Fukukawa Store, a small store for essential needs. |
| 1980-09 |
September 1980: Introduced EOS system. |
| 1980-09 |
September 1980 (Showa 55): Introduction of EOS system |
| 1984-10 |
October 1984: Listed on Hiroshima Stock Exchange. |
| 1984-12 |
December 1984: Established fresh distribution center. |
| 1985-10 |
October 1985: Listed on Osaka Securities Exchange Second Section. |
| 1986-08 |
August 1986: Introduced proprietary card system (Marukyu Point Card). |
| 1986-08 |
August 1986 (Showa 61): Introduction of in-house card system (Marukyu Points Card) |
| 1988-01 |
January 1988: Formed capital and business alliance with Kurashige Co., Ltd. (Sunmart Co., Ltd.). |
| 1988-12 |
December 1988: Established Taiwan Marukyu in Taichung City, Taiwan. |
| 1989-09 |
September 1989: Established processing distribution center. |
| 1992-09 |
September 1992: Introduced POS system. |
| 1993-12 |
December 1993: Established Processing Distribution Center as Shikisa Corporation (current consolidated subsidiary). |
| 1993-12 |
December 1993 (Heisei 5): Establishment of Processing and Distribution Center as Shikisa Corporation (current consolidated subsidiary) |
| 1998-11 |
November 1998: Opened Aruk Akizuki Store aiming for full-scale supermarket development. |
| 1998-12 |
December 1998: Joined the All Japan Supermarket Association (AJS). |
| 1998-12 |
December: Joined All Japan Supermarket Association (AJS) |
| 2000-03 |
March 2000: Listed on the Tokyo Stock Exchange Second Section |
| 2000-08 |
August 2000: Changed head office location to 1936 Oaza Etomo, Hofu City, Yamaguchi Prefecture |
| 2004-03 |
March 2004: Celebrated the 50th anniversary of founding |
| 2004-03 |
March 2004: Published 'Yamaguchi Foodie' as a commemorative project for the 50th anniversary of founding |
| 2005-03 |
March 2005: Integrated Sunmart Corporation's headquarters functions into our company |
| 2005-10 |
October 2005: Formed a business and capital alliance with Izumi Co., Ltd. |
| 2006-04 |
April 2006: Joined the 5ADAY Association |
| 2006-09 |
September 2006: Established a consolidated subsidiary, Marukyu Insurance Service |
| 2007-12 |
December 2007: Opened the online supermarket '09 Shop' on Rakuten Ichiba |
| 2007-12 |
December 2007 (Heisei 19): Launch of online supermarket '09 Shop' on Rakuten Ichiba |
| 2008-05 |
May 2008: Made Pikros a subsidiary |
| 2008-10 |
October 2008: Made Kaita a subsidiary |
| 2009-05 |
May 2009: Joined the Yamaguchi Prefecture Sales Cooperation Store Network |
| 2009-11 |
November 2009: Started the home delivery supermarket 'Marukyu Raku Raku Bin' |
| 2010-09 |
September 2010: Absorbed and merged subsidiaries Pikros and Kaita |
| 2012-03 |
March 2012: Absorbed and merged subsidiary Sunmart into Aruk |
| 2012-03 |
March 2012 (Heisei 24): Absorption of Sunmart subsidiary into Aluc |
| 2012-06 |
June 2012: Signed a regional revitalization comprehensive partnership agreement with Yamaguchi Prefecture |
| 2013-03 |
March 2013: Opened the commercial facility 'Primour Aoi' in Yamaguchi City; Aruk Aoi Store opened |
| 2014-03 |
March 2014: Celebrated the 60th anniversary of founding |
| 2014-10 |
October 2014: Made Chuo Food a subsidiary |
| 2014-11 |
November 2014: Opened Aruk Iguchi Myojin Store (second store in Hiroshima City) |
| 2015-03 |
March 2015 (Heisei 27): Establishment of Marukyu Split Preparation Company |
| 2015-07-01 |
July 1, 2015 (Heisei 27): Subsidiarization of Marumiya Store Co., Ltd. through share exchange |
| 2015-07-01 |
July 1, 2015 (Heisei 27): Succession of most of the business to Marukyu Split Preparation Company through absorption-type split, and change of trade name from Marukyu (former Marukyu Split Preparation Company) to Retail Partners Inc. |
| 2015-07-01 |
July 1: Subsidiarization of Marumiya Store Co., Ltd. through share exchange; on the same day, most of the business was inherited by Marukyu Split Preparation Company through absorption-type split; on the same day, Marukyu Co., Ltd. changed its trade name to Retail Partners Inc.; Marukyu (former Marukyu Split Preparation Company) and Marumiya Store Co., Ltd. became subsidiaries of a holding company |
| 2016-07 |
July 2016 (Heisei 28): The business company Marumiya Store Co., Ltd. inherits stores from OK Co., Ltd., and opens 14 'Fresh Market' stores and 4 'Fresh Market AX' stores |
| 2016-07 |
July 2016 (Heisei 28): The business company Marumiya Store Co., Ltd. inherits stores from OK Co., Ltd., and opens 14 'Fresh Market' stores and 4 'Fresh Market AX' stores |
| 2017-03 |
March 2017 (Heisei 29): Management integration through share exchange with Marukyo Co., Ltd. |
| 2017-03 |
March 2017 (Heisei 29): Management integration through share exchange with Marukyo Co., Ltd. |
| 2018-04 |
April 2018 (Heisei 30): Formulation of a three-year medium-term management plan |
| 2018-12 |
December 2018 (Heisei 30): Capital and business alliance with Arks Co., Ltd. and Valor Holdings Co., Ltd., concluding the 'New Japan Supermarket Alliance' |
| 2020 |
2020 (Reiwa 2): Designation on the First Section of Tokyo Stock Exchange |
| 2022 |
2022 (Reiwa 4): Designation as TSE Prime Market |
| 2023-03 |
March 2023 (Reiwa 5): Subsidiarization of Hatsutori Co., Ltd. by Marukyu Co., Ltd. |
| 2025-06 |
June 2025 (Reiwa 7): Subsidiarization of Nagano Co., Ltd. by Marukyu Co., Ltd. |
