Nihon Plast Co., Ltd.

Company Profile



3507-15 Yamamiya, Fujinomiya Shi, Shizuoka, 418-0111, Japan

Business Overview

-The Company is a manufacturer of automotive safety parts and plastic parts.

-The Company’s main products are airbags, steering wheels, and plastic products such as instrument panel parts and air ducts.

Percentage of sales by product (%)
FY ended Mar. 31, 2023 FY ended Mar. 31, 2022 FY ended Mar. 31, 2021
Plastic products 46.0 45.5 46.9
Airbags 27.3 26.9 27.8
Steering wheels 26.0 26.0 23.9
Others 0.7 1.6 1.4


-Moved to the Standard Market of the Tokyo Stock Exchange (As of Mar. 31, 2023)
Company Name or Name Investment Ratio (%)
The Master Trust Bank of Japan ,Ltd. (Trust Account) 7.59
Tokyo Small and Medium Business Investment & Consultation 7.36
Individual shareholder 6.69
Daicel Corporation 5.15
Custody Bank of Japan, Ltd. (Trust Account) 4.35
Individual shareholder 1.64
Itochu Plastics Inc. 1.63
The Dai-ichi Life Insurance Company, Limited 1.59
Mizuho Bank, Ltd. 1.59
Total 39.72


Safety parts
-Steering wheels
-Airbag modules

  • Passenger-side airbag modules
  • Side airbag modules
  • Side curtain airbag modules
  • Knee airbag modules

Instrument panel parts
-Upper/lower parts of instrument panel
-Glove boxes
-Console boxes
-Cup holders
-Column covers
-Air conditioner ducts
-Shift knobs

Interior trim parts
-Pillar garnishes

Exterior trim parts
-Cover cowl tops
-Fender protectors
-Wheel resonators

Aero parts
-Air spoilers
-Front under covers


Oct. 1948 Started business as a manufacturer producing and selling synthetic resin parts.
Oct. 1948 Started selling synthetic resin parts to Nissan's Yoshiwara Works.
May, 1950 Received the first order for steering wheels from Nissan and started delivering the products in September.
Aug. 1958 Opened the Tokyo Branch in Minato-ku, Tokyo. The functions of the branch have since been taken over by two branches, Atsugi and Tochigi branches.
July, 1960 Constructed a new headquarters with production facilities in Yoshiwara, Shizuoka.
May, 1965 Capitalization increased to 45 million yen with Nissan holding 20% of shares.
Oct. 1965 Concluded a technical licensing agreement with Petri in West Germany and started producing rubber-made steering wheels.
June, 1968 Start doing business with Honda.
Sep. 1998 Entered into a business alliance with Kansei, currently Calsonic-Kansei Corp.
May, 1999 Established NP Service Co., Ltd. in Fuji, Shizuoka
Apr. 2000 Aquired Prostec Co. Ltd. (of the Prostec Group), Fuji Technical Center, and Daiei.
Apr. 2000 Established Neaton Rome Incorporated (hereinafter referred to as Neaton Rome) in Georgia, U.S.A., with Neaton Auto Products holding 100% of the shares.
July, 2000 Finalized a commercial agreement with MollerGroup GmbH & Co.KG of Germany to conduct business in the automotive interior and exterior parts area. Formed a capital alliance agreement with its subsidiary, MollerTech International GmbH.
July, 2000 Finalized a commercial agreement with Dalphi Metal Espana SA. of Spain to deal in products involving automotive safety. Formed a capital alliance agreement with the company in November, 2000.
Oct. 2000 Announced a capital tie-up agreement with Madrid-based Dalphi Metal, a Spanish automotive component supplier. On November 2, 2000, Dalphi Metal acquired some Nihon Plast stakes from Nissan for more than 1biliion yen, to become the largest shareholder of Nihon Plast, owning 14% of all issued stock. At the same time, Nihon Plast acquired a 10% stake of Dalphi's shares under an allocation of stock offered to third-parties. Since then, the two companies have been jointly cooperating on the development and production of steering wheels and air-bag units.
Nov. 2000 NP Kouki and Prostec Group merged under the name of Prostec Co. Ltd.
Nov. 2000 Consolidated four subsidiaries producing resin parts and dies. These companies were PROSTEC Group, two other wholly-owned subsidiaries and NP Koki Co., Ltd (a 57.4% owned subsidiary).
Feb. 2003 Established Zhongshan Plast Industry Co., Ltd. jointly with Itochu corporation in Zhongshan City, Guangdong province in China.
Mar. 2004 Issued and allocated one million new shares to a third party, and thereby increased its capital by two billion yen.
Nov. 2004 Established Nihon Plast (Thailand) Co., Ltd in Rayong, Thailand.
Dec. 2004 Delisted from the over-the-counter market of the Japan Securities Dealers Association and listed on the Jasdaq Security Exchange.
Jul. 2005

Honda Motor Co., Ltd. made a 20.6% investment in the Company, thereby the Company became a Honda' affiliate.

Jan. 2006 Established a second technical center at Fujinomiya, Shizuoka Prefecture, Japan..
Apr. 2007 Established Nihon Magnesio C.V. in Queretaro, Mexico, together with Nihon Plast Mexicana C.V. and Neaton Auto Products.
Nov. 2007 Established Technical Center 3 in Kawanarijima, Fuji, Shizuoka Prefecture.
Mar. 2008 Company's stock listed on the Second Section of the Tokyo Stock Exchange
Aug. 2008 Established Wuhan Plast Auto Parts Co., Ltd. in Wuhan, Hubei Province, China
Jan. 2010

Moved its headquarters to the premises of the Company's technical center in Fujinomiya City, Shizuoka Prefecture.

Nov. 2010 Nihon Plast Mexicana C.V. and Neaton Auto Products Mfg., Inc. jointly established Neaton Auto Mexicana, S.A de C.V. in Queretaro, Mexico.
2013 Ended capital relationship with Honda.
Nov. 2013 Opened China Technical Center in Zhongshan, Guangdong, China.
Dec. 2017 Listed on the first section of the Tokyo Stock Exchange.
Mar. 2018 Nihon Plast Mexicana C.V. and Nihon Magnesio S.A. de C.V. jointly established Nihon Plast Mexicana de Temascalcingo, S.A. de C.V.
Mar. 2019 Established Nihon Plast Vietnam Co., Ltd. in Vĩnh Phúc, Vietnam.
Apr. 2022 Moved to the Standard Market of the Tokyo Stock Exchange

Supplemental Information 1