| 1987年07月 |
MC Chemicals Marketing Co., Ltd. established : (Solvent trading division splits off from the Aromatic Petrochemicals Dept. of Mitsubishi Corporation) |
| 1987年10月 |
営業開始（東京本社・大阪営業部） |
| 1987年10月 |
Start of business (Tokyo HQ, Osaka Sales Department) |
| 1988年11月 |
名古屋営業部開設 |
| 1988年11月 |
Opened Nagoya Sales Department |
| 1989年04月 |
九州営業部開設 |
| 1989年04月 |
Opened Kyushu Sales Department |
| 1991年04月 |
エム・シー・ケミカル株式会社に社名変更 : コーティングレジン取引開始（三菱商事（株）高機能化学品部から移管） |
| 1991年04月 |
Company name changed to MC Chemical Corporation : Started coating resin operations : (Transferred from the High Performance Plastics & Chemicals Dept. of Mitsubishi Corporation) |
| 1993年04月 |
機能化学品取引開始 |
| 1993年04月 |
Started functional chemical operations |
| 1996年04月 |
大阪営業部を大阪支店に改編 |
| 1996年04月 |
Reorganized Osaka Sales Department to create Osaka Branch Office |
| 1998年04月 |
名古屋営業部・九州営業部を支店に改編 |
| 1998年04月 |
Reorganized Nagoya and Kyushu Sales Departments to create new branch offices |
| 1998年10月 |
Changed company name to Mitsubishi Shoji Chemical Corporation after expanding capital base |
| 2009年03月 |
Integrated Kyushu Branch Office with Osaka Branch Office |
| 2009年08月 |
Obtained ISO 14001, the international standard for environmental management systems (head office) |
| 2010年04月 |
Expansion of capital base brings capital fund total to 392 million yen : MC YAMASAN POLYMERS CO., LTD. made a subsidiary (investment ratio 90%) |
| 2010年10月 |
Started silicones and fumed silicas operations : (Transferred fromFunctional Chemicals Division of Mitsubishi Corporation) |
| 2011年07月 |
Reorganized Sales Department into Sales Department 1 and 2 : Began handling paint materials/products : (Transferred from Functional Chemicals Division of Mitsubishi Corporation) |
| 2015年04月 |
Began handling functional products : (Transferred from the Functional Chemicals Division of Mitsubishi Corporation) |
| 2017年04月 |
Started intermediates operations : (Transferred from Commodity Chemicals Division A of Mitsubishi Corporation) : Started urethane operations : (Transferred from Functional Chemicals Division of Mitsubishi Corporation) |
| 2020年04月 |
Started sulfuric acid transactions (Transferred from the Refinery Chemicals Marketing Dept . of Mitsubishi Corporation) |
| 2023年04月 |
Changed division name Sales & Marketing Division I to Basic Products Division : Changed division name Sales & Marketing Division II to Performance Products Division |
