Conbum Corporation

Established Myoto Manufacturing Co., Ltd. in Ota-ku, Tokyo, as a precision machinery parts processing business (capital: 200,000 yen)

Established MyoDeok Manufacturing Co., Ltd. in Ota Ward, Tokyo, as a precision machinery parts processing business (capital 200,000 yen)

Established Conbum Co., Ltd.

Established Yaguchi Factory (Ota-ku, Tokyo) and Mizusawa Factory (Mizusawa City, Iwate Prefecture)

Established Yaguchi Factory (Ota Ward, Tokyo) and Mizusawa Factory (Mizusawa City, Iwate Prefecture)

Commenced manufacturing and sales of vacuum equipment and related products.

Launched two models, CV-05 and CV-10, of the trademarked air ejector type vacuum generator 'Conbum'

Launched two models, CV-05 and CV-10, of the "Conbum" air ejector type vacuum generator trademark

Released the first ejector-type vacuum generator in Japan under the 'CONVUM' brand name.

Established Sendai Factory in Kurokawa District, Miyagi Prefecture)

Established Sendai Factory (Kurokawa District, Miyagi Prefecture)

Established the Yaguchi factory.

Changed trade name to Myoto Corporation)

Established the Mizusawa factory.

Changed Yaguchi Factory to a Technical Development Center (Yaguchi Business Office)

Changed Yaguchi Factory to a technology development center (Yaguchi Business Office) as a product development base

Changed the company name to Myodok Co., Ltd.

Relocated Mizusawa Factory to Esashi City, Iwate Prefecture, and renamed it Iwate Factory)

Converted the Yaguchi factory into a technology development center as a product development base.

Established Akita Myoto Corporation in Kitaakita District, Akita Prefecture)

Established Akita MyoDeok Co., Ltd.

Moved the Mizusawa factory to Esashi, Iwate Prefecture, and renamed it Iwate factory.

Split Iwate Factory into Iwate Myoto Corporation and Sendai Factory into Sendai Myoto Corporation (dissolved capital relationship in December 2000)

Converted Iwate Factory to Iwate MyoDeok Co., Ltd. and Sendai Factory to Sendai MyoDeok Co., Ltd. (dissolved capital relationship in December 2000)

Established Akita Myodok Co., Ltd.

Developed pressure sensor (MVS-030) at Akita Myoto Corporation)

Developed pressure sensor (MVS-030) at Akita MyoDeok Co., Ltd.

Divided the Iwate factory into Iwate Myodok Co., Ltd. and the Sendai factory into Sendai Myodok Co., Ltd.

Renamed Iwate Myoto Corporation to Conbum Corporation)

Developed the pressure sensor (MVS-���).

Established Shanghai Myoto Koubatsu Trading Co., Ltd. (consolidated subsidiary) in Shanghai, China)

Established Shanghai MyoDeok Kongpa Mook Trading Co., Ltd. (consolidated subsidiary) in Shanghai, China

Established Shanghai Myodok Kooha Moku Trading Co., Ltd. in Shanghai.

Established Myoto Korea Co., Ltd. (current consolidated subsidiary) in Anyang City, South Korea)

Established Myodok Korea Co., Ltd. (now a consolidated subsidiary) in Anyang City, South Korea.

Listed shares on the JASDAQ Stock Exchange.

Listed on Jasdaq Securities Exchange, Inc.

Transferred the adsorption pad manufacturing process at the Iwate facility and closed the facility.

Merged by absorption with Conbum Corporation as the surviving company and dissolved Akita Myoto Corporation)

Established CONVUM (Thailand) Co., Ltd. in Bangkok, Thailand.

Merged by absorption with Conbum Corporation as the surviving company, establishing Iwate and Akita business offices)

Absorbed and merged Conbum Corporation as a dissolved company into our company, establishing the Iwate and Akita offices from the inherited facilities.

Listed shares on the Osaka Stock Exchange JASDAQ market.

Established CONVUM (THAILAND) CO., LTD. in Bangkok, Thailand (current consolidated subsidiary)

Established CONVUM (THAILAND) CO., LTD. (now a consolidated subsidiary) in Bangkok, Thailand.

Established CONVUM USA, Inc. in California, USA.

Merged with the Osaka Securities Exchange (JASDAQ Market) following the merger of the Jasdaq Securities Exchange and Osaka Securities Exchange

Divested the Iwate factory to Iwate Myotoku Co., Ltd. and the Sendai factory to Sendai Myotoku Co., Ltd.

Merged Osaka Securities Exchange JASDAQ Market, Hercules Market, and NEO Market, listing on Osaka Securities Exchange JASDAQ (Standard)

Following the integration of the Osaka Stock Exchange JASDAQ market, the Hercules market, and the NEO market, we listed our shares on the Osaka Stock Exchange JASDAQ (Standard) (now the Tokyo Stock Exchange JASDAQ (Standard)).

Divested the Iwate factory to Iwate Myotoku Co., Ltd. and the Sendai factory to Sendai Myotoku Co., Ltd.

Relocated MyoDeok Korea Co., Ltd. to Seoul, South Korea

Renamed Shanghai MyoDeok Kongpa Mook Trading Co., Ltd. to MyoDeok Kongpa Mook Machinery Equipment (Shanghai) Co., Ltd.

Started processing and assembly of adsorption pad parts at MyoDeok Kongpa Mook Machinery Equipment (Shanghai) Co., Ltd. and MyoDeok Korea Co., Ltd.

Transferred the adsorption pad manufacturing process from Akita Plant to Iwate Plant and closed the Akita Plant

Transferred the adsorption pad manufacturing process from the Akita office to the Iwate office and closed the former.

Implemented an absorption merger with Convum Corporation as the surviving company and Akita Myotoku Co., Ltd. as the dissolved company.

Merged with Tokyo Stock Exchange and Osaka Securities Exchange, listing on Tokyo Stock Exchange JASDAQ Market (Standard)

Removed Myotoku Kuuhamoku Machinery Equipment (Shanghai) Co., Ltd. from the consolidated subsidiaries.

Established CONVUM USA, INC. (consolidated subsidiary) in California, USA

Established CONVUM USA, INC. (consolidated subsidiary) in California, USA.

Changed the company name to Convum Co., Ltd.

Changed company name to "Conbum Corporation" from January 2022

Changed the company name to Convum Co., Ltd.

Dissolved CONVUM USA, INC.

Dissolved CONVUM USA, INC.

Removed Myotoku Kuuhamoku Machinery Equipment (Shanghai) Co., Ltd. from the consolidated subsidiaries.

Removed MyoDeok Kongpa Mook Machinery Equipment (Shanghai) Co., Ltd. from consolidated subsidiaries

December 2023 (Reiwa 5)