Overview & Locations

Overview
Company name
PS Japan Corporation
Main business
R&D, production and sale of polystyrene resins
Head office
18F, Sumitomo Fudosan Korakuen Bldg.
1-4-1 Koishikawa, Bunkyo-ku,
Tokyo 112-0002 Japan
Tel: +81-3-5689-6543 Fax: +81-3-5689-6544
Net sales
¥70 billion (FY 2022)
Paid-in capital
¥5 billion
Shareholders
Asahi Kasei Corp. 62.07%
Idemitsu Kosan Co.,Ltd. 37.93%
Number of employees
approximately 150
Executives
PresidentIppei Araya
Director and Vice PresidentMasakazu Tashiro
Managing DirectorMasafumi Kobayashi
Managing DirectorTakenori Kondo
DirectorKatsura Tanaka
DirectorNobuhiro Miyagishi
AuditorKazumasa Otsubo
AuditorYuichi Kurimoto
Executive OfficerNaoki Azuma
Executive OfficerKazuhiro Nakajima
Executive OfficerWataru Fujii
Establishment
April 2003
Brand
PSJ-POLYSTYRENE
Locations
Head Office
18F, Sumitomo Fudosan Korakuen Bldg.
1-4-1 Koishikawa, Bunkyo-ku,
Tokyo 112-0002 Japan
Tel: +81-3-5689-6543 
Fax: +81-3-5689-6566
Research and
Development Dept.
1-3-1 Yako, Kawasaki,
Kanagawa 210-0863 Japan
Chiba Plant
5-1 Nakasode, Sodegaura,
Chiba 299-0297 Japan
Googlemap
Mizushima Plant
3-13 Ushiodori, Kurashiki,
Okayama 712-8633 Japan
Googlemap