History
| March.1946 | Kozaburo Kobayashi founded KOBAYASHI UNLIMITED PARTNERSHIP PATNERSHIP in Oji-ku (current Kita-ku), Tokyo, to start manufacturing and marketing of cosmetics. |
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| June.1948 | Established KOBAYASHI KOSÉ COMPANY LIMITED at 7-chome, Toshima, Kita-ku, Tokyo. |
| November.1951 | The sales department was split off to form KOSÉ SHOJI CORPORATION. |
| October.1961 | Established Topak Corporation, a manufacturer of corrugated cardboard and paper containers. (Later merged with INTERCOSME INC.) |
| May.1963 | Signed an agreement with L’Orèal of France for technological cooperation. (The joint venture agreement lasted until August 2001.) |
| June.1964 | Established Sayama Factory in Saitama. |
| August.1964 | Opened a laboratory (current KOSÉ Product Development Research Laboratory) in Kita-ku, Tokyo. |
| March.1965 | Relocated the head office to Nihonbashi, Chuo-ku, Tokyo. |
| September.1968 | Established KOSÉ (HONG KONG) CO., LTD. in Hong Kong. |
| August.1971 | Established KOSÉ SINGAPORE PTE. LTD. in Singapore. |
| November.1972 | Established KOSÉ (MALAYSIA) SDN. BHD. in Malaysia. |
| June.1979 | Established Gunma Factory in Gunma. |
| November.1980 | Awarded the Deming Prize for Quality Control in Factory Production. |
| September.1984 | Established KOSÉ (THAILAND) Co., Ltd. in Thailand. |
| September.1984 | Established TAIWAN KOSÉ CO., LTD. in Taiwan. |
| October.1985 | Established CRIE CO., LTD., a cosmetics distributor exclusively for salons. |
| January.1988 | Established Chun Si Li Co., LTD. (current KOSÉ COSMETICS CO., LTD. (China)).
(Transferred Equity Interest in May, 2018) |
| April.1988 | Established KOSÉ SALES CO., LTD., a distributor of KOSÉ products. |
| July.1988 | Established KOSÉ COSMEPORT CORP., a cosmetics distributor for wholesalers. |
| August.1991 | The company’s name was changed to KOSÉ Corporation. |
| September.1992 | Established ADVANCE Co., Ltd., a special subsidiary corporation under the Law concerning Employment of Disabled Persons. |
| December.1999 | Registered with the Japan Securities Dealers Association (OTC-registered stocks). |
| December.2000 | Listed on the First Section of the Tokyo Stock Exchange. |
| July.2001 | Established KOSÉ KOREA CO., LTD. in South Korea. |
| April.2002 | Acquired all shares of PHIL INTERNATIONAL INC. (current Dr. PHIL COSMETICS INC.), a company developing dermatology-based cosmetics. |
| April.2002 | Established KOSÉ COSMEPIA CO., LTD. (current KOSÉ TRAVEL RETAIL CO., LTD.), a distributor of OEM and amenity products. |
| August.2004 | Opened a regional ordering center (current Operation Center) in Akita. |
| December.2004 | Established Hsinchu Factory of TAIWAN KOSÉ CO., LTD in Taiwan. |
| June.2005 | Established KOSÉ COSMETICS SALES (CHINA) CO., LTD. in China. |
| August.2005 | Introduced the JILL STUART brand to the Japanese cosmetics market as a licensed business. |
| April.2008 | Opened KOSÉ Oji Training Center in Kita-ku, Tokyo. |
| August.2011 | Established PROVISION CO., LTD. (current KOSÉ PROVISION CO., LTD.), a cosmetics mail-order company. |
| October.2013 | Established KOSÉ Corporation INDIA PVT. LTD. in India. |
| February.2014 | Established PT. INDONESIA KOSÉ in Indonesia. |
| April.2014 | Acquired the stock of US company Tarte, Inc., making it an affiliate. |
| October.2015 | Established KOSÉ America, Inc. in United States. |
| March.2016 | Established KOSÉ INDUSTRIES CO., LTD. |
| March.2016 | Established KOSÉ BRASIL COMÉRCIO DE COSMÉTICOS LTDA. in Brazil. |
| March.2017 | Operation Start – New Production Building at the Gunma Plant. |
| July.2017 | Established KOSÉ MILBON COSMETICS to manufacture and distribute cosmetic products through salon channel. |
| October.2017 | Opened French Satellite Office of KOSÉ Research Laboratory in Lyon, France. |
| March.2019 | Established KOSÉ Advanced Technology Research Laboratory in Kita-ku, Tokyo. |
| July.2019 | Established KOSÉ Maruho Pharma Co., Ltd. to plan, develop, and sell OTC drugs and cosmetics. |
| December.2019 | Opened a directly managed concept store “Maison KOSÉ Ginza”. |
| April.2020 | KOSÉ Cosmepia, KOSÉ’s amenity business company, merged KOSÉ Corporation’s travel retail business and changed its name to KOSÉ Travel Retail Co., Ltd. |
| October.2020 | Opened a directly managed flagship store “Maison KOSÉ Omotesando”. |
| April.2022 | Moved from the First Section to the Prime Market due to the revision of the market classification of the Tokyo Stock Exchange. |
| February.2024 | KOSÉ France Branch and KOSÉ R&D Laboratories Paris Branch Office are established in Paris, France. |