| 1950 |
Openning of Orita Store in Miyakojima City |
| 1970 |
Establishment of Sun-A Corporation in Naha City |
| 1970-05 |
Established in Naha City, Okinawa Prefecture, with a capital of 50 thousand dollars. Aimed at establishing a business foundation and managing chain stores. |
| 1970-07 |
Opened a general clothing self-service store "Naha Store". |
| 1972-05 |
Due to currency exchange related to the reversion to mainland Japan, the capital becomes 24,400 thousand yen. |
| 1982 |
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| 1982 |
Established Sun-Ae Transportation Co., Ltd. |
| 1982-09 |
Established as a non-consolidated subsidiary with a capital of 10,000 thousand yen. |
| 1984 |
Newly established Oyama Distribution Center in Ginowan City, Okinawa Prefecture |
| 1984-11 |
Newly established in Ginowan City, Okinawa Prefecture. |
| 1985 |
Opened fresh food processing center (current food processing center) inside Oyama Distribution Center |
| 1985 |
Established a fresh food processing center (current Food Manufacturing Department) within Oyama Distribution Center. |
| 1985-05 |
Relocated headquarters to Ginowan City, Okinawa Prefecture. |
| 1985-06 |
Opened a fresh food processing center (currently a food processing center) inside the Oyama Distribution Center. |
| 1989-09 |
Joined the Japan Distribution Industry Group. |
| 1992 |
Food factory operation inside food processing center |
| 1992-09 |
Food factory started operation inside the food processing center. |
| 1994 |
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| 1994 |
Started developing roadside restaurant Wafutei. |
| 1995 |
Start of expansion of roadside restaurant Wafutei |
| 1995 |
Established an electrical appliance department. |
| 1995-04 |
Signed a franchise agreement with Daiichi Corporation (now Edion) to start electronics retailing. |
| 1998-10 |
Introduced the point card "Sanei Card". |
| 2000-09 |
Registered on the over-the-counter market of the Japan Securities Dealers Association. |
| 2002 |
Establishment of electrical appliances department |
| 2002-01 |
Signed a franchise agreement with Joyful Corporation and opened the first family restaurant. |
| 2002 |
Opened Sun-Ae Naha Main Place. |
| 2002-10 |
Opened "Naha Main Place" in Naha City, Okinawa Prefecture. |
| 2003-10 |
Introduced the credit card "Sanei VISA Card". |
| 2005-02 |
Listed on the Second Section of the Tokyo Stock Exchange. |
| 2006 |
Opening of Sun-A Naha Main Place |
| 2006 |
Listed on the First Section of the Tokyo Stock Exchange, and established a drug department. |
| 2006-02 |
Listed on the First Section of the Tokyo Stock Exchange. |
| 2006-07 |
Obtained ISO22000 certification at the food processing center. |
| 2006-10 |
Signed a franchise agreement with Matsumoto Kiyoshi Co., Ltd. and opened the first drugstore. |
| 2007-10 |
Converted the founding store "Naha Store" into a drugstore. |
| 2008-02 |
Introduced prepaid electronic money "Edy". |
| 2009 |
Listed on the First Section of the Tokyo Stock Exchange, establishment of drug department |
| 2009 |
Started operation of Lawson Okinawa Co., Ltd. |
| 2009-12 |
Established a joint venture "Lawson Okinawa Co., Ltd." with Lawson, Inc., and started operating franchise systems and directly managed stores for convenience stores within Okinawa Prefecture. |
| 2012 |
Start of operation of Lawson Okinawa |
| 2012 |
Tokyu Hands (now Hands) expansion begins |
| 2012-03 |
Signed a franchise agreement with Tokyu Hands, Inc., and opened the first store. |
| 2012-11 |
Signed a franchise agreement with Tully's Coffee Japan, and opened the first store. |
| 2013 |
Start of expansion of Tokyu Hands (now Hands) |
| 2013 |
Muji expansion begins |
| 2013-08 |
Signed a basic license agreement with MUJI Co., Ltd., and opened the first store. |
| 2014-10 |
Signed a sublicense agreement with Phoenix Co., Ltd., and opened the first "Pizza Hut Express" store. |
| 2015-11 |
Established "Sun-Ae Urasoe West Coast Development Co., Ltd.". |
| 2016 |
Start of MUJI expansion |
| 2016 |
Sun Eah Parco Co., Ltd. established |
| 2016-12 |
Established a joint venture "Sun-Ae Parco Co., Ltd." with Parco Co., Ltd. |
| 2018-07 |
Signed a package license agreement with Akachan Honpo Co., Ltd., and opened the first "Akachan Honpo" store in June 2019. |
| 2018-07 |
Signed a franchise agreement with Mermaid Bakery Partners, and opened the first "Little Mermaid" store in June 2019. |
| 2019 |
Establishment of Sun-A Parco Corporation |
| 2019 |
Sanei Urasoe West Coast PARCO CITY Opens |
| 2019-06 |
Opened "Urasoe West Coast PARCO CITY" and the first stores of "Akachan Honpo" and "Little Mermaid". |
| 2024-08 |
Signed a franchise agreement with Soup Stock Tokyo Co., Ltd., and opened the first "Soup Stock Tokyo" store in September 2025. |
