| 1907 |
Toshisuke Tonooka founded Tonri Textile Company to manufacture and sell textiles domestically and internationally. |
| 1943-06 |
Converted to rubber products manufacturing at the Korakuni Industrial Co., Ltd. Ashikaga Plant as part of wartime industrial restructuring under the Kokka Industrial Order. |
| 1945-09 |
Immediately after the end of the war, began manufacturing cloth shoes, all-rubber shoes, rubber-coated cloth, and synthetic resin products. |
| 1947-05 |
Established Kokken Chemical Industry Co., Ltd. with capital of 2 million yen. Toshio Tonooka became president. |
| 1948-04 |
Started manufacturing and selling vinyl chloride products. |
| 1951-03 |
Relocated head office to Shintomicho, Chuo-ku, Tokyo. |
| 1956-06 |
Elevated Osaka sales office to Osaka branch to expand the Kansai market. |
| 1957-04 |
Constructed Yamanobe Factory (now Ashikaga First Factory) in Ashikaga City, Tochigi Prefecture. |
| 1961-06 |
Formed a technical partnership with ICI Ltd. of the UK for the manufacture of soft polyurethane foam. |
| 1962-09 |
Listed on the First Section of the Tokyo Stock Exchange. |
| 1963-01 |
Succeeded in manufacturing and started selling synthetic leather 'Kablon'. |
| 1964-02 |
Relocated the head office to Oogicho, Shinjuku-ku, Tokyo. |
| 1965-11 |
Established a local subsidiary, Achilles K.C.I. Corp., in New York, USA. |
| 1969-07 |
Constructed the Mikuriya Factory (currently Ashikaga Second Factory) in Ashikaga City, Tochigi Prefecture. |
| 1973 |
Established a subsidiary in Washington State, USA, for the production of soft PVC film. |
| 1973-02 |
Established the Hong Kong Representative Office as a local subsidiary, "Kyoho Limited" (currently ACHILLES HONG KONG CO., LIMITED). |
| 1973-10 |
Constructed the Kansai Factory (currently Shiga Second Factory) in Inukami District, Shiga Prefecture. |
| 1973-11 |
Established "KOHKOKU USA, INC." (currently ACHILLES USA, INC.) in Everett City, Washington, USA. |
| 1974-08 |
Constructed the Bibai Factory in Bibai City, Hokkaido. |
| 1978-11 |
Established the Shiga First Factory in Yasu City, Shiga Prefecture. |
| 1982-02 |
Changed the company name from "Kokoku Chemical Industry Co., Ltd." to "Achilles Corporation." |
| 1986-06 |
Formed a technical partnership with A.S. Creation of Germany for wall material manufacturing. |
| 1988-03 |
Formed a technical partnership with Tarkett of Sweden for flooring manufacturing. |
| 1989-01 |
Constructed the Kyushu Factory in Iizuka City, Fukuoka Prefecture. |
| 1993 |
Established a manufacturing plant for vinyl chloride leather used for automotive interior upholstery, etc., in China. |
| 1993-12 |
Established a joint venture for PVC leather manufacturing, "Kunshan Achilles New Material Technology Co., Ltd." in Kunshan, China. |
| 1998-12 |
Started production of conductive material "ST Poly". |
| 2002-09 |
Obtained ISO 14001 certification at all seven factories and six related companies nationwide. |
| 2002-10 |
Established "Achilles (Shanghai) International Trading Co., Ltd." in Shanghai, China. |
| 2004-02 |
Second factory of "Kunshan Achilles New Material Technology Co., Ltd." became operational. |
| 2005-12 |
Opened the "Achilles Technical Center" inside the Ashikaga First Factory in Ashikaga City, Tochigi Prefecture. |
| 2006-11 |
Acquired all issued shares of "Sanshin Kosan Co., Ltd." and made it a subsidiary. |
| 2007-10 |
Introduced state-of-the-art equipment for the production of environmentally friendly synthetic leather for vehicle interiors at Ashikaga First Factory. |
| 2007-10 |
All business divisions have obtained ISO 9001 certification. |
| 2008-02 |
Established 'Achilles Advanced Technology Co., Ltd.' for the semiconductor market in Taiwan. |
| 2008-04 |
Established a sales office for ACHILLES USA, INC. in Detroit, USA. |
| 2009-03 |
Signed a partnership agreement with Itochu Corporation regarding the 'Shun Soku' shoe brand. |
| 2015-02 |
Relocated head office to Kita-Shinjuku, Shinjuku-ku, Tokyo. |
| 2019-05 |
Established Achilles (Foshan) New Material Co., Ltd. in Foshan, Guangdong Province, China. |
| 2022-04 |
Transitioned to the Tokyo Stock Exchange Prime Market. |
