Profile
Hiroshi Tominaga worked as a Director & Managing Director at Altech Co., Ltd.
He also worked as a Director at OSJB Holdings Corp.
from 2012 to 2013 and as a Director at Oriental Shiraishi Corp.
Former positions of Hiroshi Tominaga
| Companies | Position | End |
|---|---|---|
| OSJB HOLDINGS CORPORATION | Director/Board Member | 2013-12-25 |
| ALTECH CO., LTD. | Director/Board Member | - |
| ORIENTAL SHIRAISHI CORPORATION | Director/Board Member | - |
Experiences
Positions held
Connections
1st degree connections
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Listed companies | 2 |
|---|---|
| ORIENTAL SHIRAISHI CORPORATION | Industrial Services |
| ALTECH CO., LTD. | Distribution Services |
| Private companies | 1 |
|---|---|
OSJB Holdings Corp.
 OSJB Holdings Corp. Engineering & ConstructionIndustrial Services OSJB Holdings Corp. operates as a holding company that engages in the planning and management of its group companies those are engaged in the design, fabrication, installation, and construction of bridges, steel frames, and steel structures. It operates through the following segments: Construction, Steel Structure and Others. The Construction segment engages in the construction, manufacture and sale of pre-stressed concrete; construction of pneumatic caisson and repair works; design and construction of anti-seismic reinforcement; and sale of construction materials. The Steel Structure segment handles the design, production, and installation of steel structures such as bridges and others. The Others segment engages in the generation and sale of power through solar power generation. The company was founded by Katsujiro Iwai on July 7, 1919 and is headquartered in Tokyo, Japan. | Industrial Services |
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- Hiroshi Tominaga
