| 1951-04 |
Established in Kobe, Hyogo Pref. |
| 1951-07 |
Akashi plant started operation. |
| 1953-04 |
Start of production and sale of sizing agents. |
| 1954-02 |
Head Office moved to Akashi plant. |
| 1962-05 |
Start of production and sales of resins for printing ink. |
| 1965-04 |
Start of production and sales of strength resins for papermaking. |
| 1969-01 |
DIC-Hercules was formed as a joint venture between Dainippon Ink & Chemicals, Inc. (“DIC”) and Hercules Inc. |
| 1969-03 |
Start of sales of wet strength agents. |
| 1970-09 |
Chiba plant started operation. |
| 1970-10 |
Start of production of wet strength agents. |
| 1972-10 |
Start of production and sales of neutral sizing agents |
| 1975-03 |
Start of sales of rosin emulsion sizes |
| 1975-06 |
Start of production and sales of resins for recording materials |
| 1978-03 |
Harima plant started operation |
| 1985-05 |
Start of production of rosin emulsion sizes |
| 1988-02 |
Ryugasaki plant started operation |
| 1988-03 |
Ichihara laboratory was constructed |
| 1992-11 |
Mizushima plant started operation |
| 1994-08 |
Head Office and Laboratory(currently Akashi lab) was constructed |
| 1994-09 |
Dainippon Ink & Chemicals, Inc. (“DIC”) purchased Hercules’ entire stake in DIC-Hercules. |
| 1994-10 |
DIC-Hercules was renamed Japan PMC Corporation. |
| 1997-02 |
Stocks listed on the OTC market (currently JASDAQ). |
| 1997-12 |
Stocks listed on the Second Section of the Tokyo Stock Exchange. |
| 1998-12 |
Iwai plant started operation. |
| 2001-04 |
Consolidated Chemical Product Div. of Misawa Chemical Co., Ltd. acquiring. Shizuoka plant as well as other plants. |
| 2001-06 |
Chiba laboratory was constructed. |
| 2003 |
SEIKO POLYMER CORPORATION was formed as a wholly-owned subsidiary through a spin-off of the resin division of Seiko Chemical Industries Co., Ltd. |
| 2003-04 |
日本PMC（株）を存続会社として星光PMC（株）設立（資本金20億円） |
| 2003-04 |
星光化学工業（株）の樹脂部門を星光ポリマー（株）として分社化（星光PMC（株）の100%子会社） |
| 2003-04 |
Merger between two companies with Japan PMC Corporation as surviving company, having a paid-in capital of 2,000 million yen. |
| 2003-09 |
中国上海市に上海駐在員事務所を設立 |
| 2003-09 |
Opened Representative office in Shanghai, China. |
| 2005-04 |
中国江蘇省張家港市に星光精細化工（張家港）有限公司設立（星光PMC（株）の100％子会社） |
| 2005-04 |
Established SEIKO PMC (ZHANGJIAGANG) CORPORATION, wholly-owned subsidiary manufacturing paper chemicals in Jiangsu, China. |
| 2006-03 |
中国上海市に星悦精細化工商貿（上海）有限公司設立（星光PMC（株）の100％子会社） |
| 2006-03 |
Established SEIKO PMC (Shanghai) Commerce & Trading Corp. in Shanghai, China. |
| 2006-10 |
連結子会社の星光ポリマー（株）を吸収合併 |
| 2006-10 |
Took over SEIKO POLYMER CORPORATION, a consolidated subsidiary. |
| 2010-02 |
Iwai laboratory was constructed. |
| 2012-01 |
東京証券取引所市場第一部銘柄に指定 |
| 2012-01 |
Stock listed on the First Section of the Tokyo Stock Exchange. |
| 2014-04 |
興人フィルム＆ケミカルズ（株）の化成品事業を継承した |
| 2014-04 |
KJケミカルズ（株）を子会社化（星光PMC（株）の90％子会社） |
| 2014-04 |
Acquired a 90% interest in the KJ CHEMICALS CORPORATION, which assumed the fine chemicals business of KOHJIN Film & Chemicals Co., Ltd. |
| 2014-07 |
千葉工場（千葉県市原市）に銀ナノワイヤー製造設備の建設完了 |
| 2014-07 |
The Silver nanowire manufacturing facility was constructed in Chiba plant. |
| 2014-10 |
Pilot plant of Cellulose Nanofiber was constructed in Ryugasaki plant. |
| 2016-01 |
KJケミカルズ（株）の10％の株式を取得（星光PMC（株）の100％子会社化） |
| 2016-01 |
Acquired the remaining 10% of KJ CHEMICALS CORPORATION stock, making it a 100% owned subsidiary. |
| 2019-01 |
新綜工業股份有限公司の52.2％の株式を取得（星光PMC（株）の子会社化・2023年1月時点の持ち株比率 92.8%） |
| 2019-01 |
Acquired 52.2% of Total Acrylic Polymer Industry Corporation stock, making it subsidiary. |
| 2019-12 |
ベトナムバリアブンタウ省にSEIKO PMC VIETNAM CO., LTD.設立（星光PMC（株）の100％子会社） |
| 2019-12 |
Established SEIKO PMC VIETNAM CO., LTD. in Ba Ria-Vung Tau Province, Vietnam (100％ owned subsidiary) |
| 2023-01 |
（株）マリンナノファイバーを子会社化（星光PMC（株）の85.4％子会社） |
| 2023-01 |
Marine Nano-fiber Co., Ltd. becomes a subsidiary (a 85.4% subsidiary of SEIKO PMC Corporation) |
| 2023-12 |
東京証券取引所から上場廃止 |
| 2023-12 |
Delisted from the Tokyo Stock Exchange |
| 2024-01 |
インビジブルホールディングスによる完全子会社化 |
| 2024-01 |
Becomes a wholly-owned subsidiary of Invisible Holdings. |
| 2025-04 |
CHEMIPAZ株式会社に社名変更 |
| 2025-04 |
Company name is changed to CHEMIPAZ Corporation |
