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| TOYO INNOVEX CO., LTD. |
Katashi Aoki, founder, repatriated from Manchuria upon Japan's defeat in the Pacific War; inaugurates business at the company's present site for the purpose of engaging in plastics processing and development of related machinery.
Nissei Plastic Seisakusho established as a limited partnership.
Re-incorporated as Nissei Plastic Industrial Co., Ltd.
Tokyo Office opened.
AU-1 machines sent to the U.S. are the company's first-ever export.
Osaka Office opened.
Nagoya Office opened.
Output and sale of 1,000th injection molding machine achieved.
Taiwan Office opened.
Nissei School opened.
Output and sale of 5,000th injection molding machine achieved.
Export of injection blow molding technology to Automatik Co. of West Germany.
Singapore Representative Office opened.
Export of injection molding machine technology to The FAMA Co. of Mexico for launch of local production and sales.
Thailand Representative Office opened.
Indonesia Representative Office opened.
Hong Kong Representative Office opened.
Output and sale of 10,000th injection molding machine achieved.
Malaysia Representative Office opened.
Philippine Representative Office opened.
Nissei Machinery Service Pte. Ltd. (later renamed Nissei Plastic Singapore Pte. Ltd.) established as a joint venture in Singapore.
Nissei America, Inc. established as a subsidiary in the U.S.
Output and sale of 20,000th injection molding machine achieved.
Established Head Office Technical Center.
Nissei Plastic (Hong Kong) Co., Ltd. established as a subsidiary in Hong Kong.
Output and sale of 30,000th injection molding machine achieved.
Taiwan Nissei Machinery Corporation established as a subsidiary in Taiwan.
Output and sale of 40,000th injection molding machine achieved.
Chairman K. Aoki awarded Prize for Superior Merit in blow molding by SPE (Society of Plastics Engineers).
Technical Research Institute established in head office.
Output and sale of 50,000th injection molding machine achieved.
Stock listed on the 2nd section of Nagoya Stock Exchange.
Mexico Representative Office opened.
Output and sale of 60,000th injection molding machine achieved.
Shanghai Office opened.
Nissei Mexico S.A. De C.V. established.
Nissei Plastic (Thailand) Co., Ltd. established in Bangkok.
Measures addressed to introduce "CE Marking" for EU markets.
Indonesia Representative Office opened.
ISO 9001 accreditation acquired concerning design, development, manufacture and shipment of injection molding machines.
Output and sale of 70,000th injection molding machine achieved.
Representative Office opened in Monterrey, Mexico.
ISO 14001 accreditation acquired.
Output and sale of 80,000th injection molding machine achieved.
Stock listed on the 2nd section of Tokyo Stock Exchange.
Office opened in Guadalajara, Mexico.
Stock listing re-designated to the 1st sections of the Tokyo and Nagoya stock exchanges.
T. Yoda assumed office of Chairman; H. Yoda became President.
Output and sale of 90,000th injection molding machine achieved.
Nissei Plastic (Shanghai) Co., Ltd. established as a subsidiary in Shanghai.
Representative Office opened in Vietnam.
Office opened in Suzhou, China.
Office opened in Tianjin, China.
Technical Center established in Bangkok, Thailand.
Cumulative sales of 100,000 injection molding machines achieved.
Representative office in Vietnam reestablished as an oversea subsidiary.
NISSEI's X-pump equipped hybrid type injection molding machines received the "Director General of the Agency of Natural Resources and Energy Award," at the "Implementation of Energy Conserving Machinery Awards" by The Japan Machinery Federation.
Representative Office opened in Gurgaon, India.
A branch of Nissei Plastic (Vietnam) Co., Ltd. opened in Hanoi.
Nissei Plastic Machinery (Taicang) Co., Ltd. established as a production subsidiary in China.
Branch office opened in Taicang, China.
Service office opened in Wuhan, China.
Nissei Plastic Machinery (Thailand) Co., Ltd. established as a production subsidiary.
Thailand factory completed, and operation started.
Branch office opened in Dongguan, China
Representative office in India reestablished as a subsidiary.
Nissei Metal Works Co., Ltd. established as a production subsidiary for IMM's parts.
Cumulative sales of 120,000th injection molding machines achieved.
Nissei Plastic Philippines, Inc. established as a subsidiary in Laguna.
Representative office in Indonesia reestablished as a subsidiary.
New Taicang factory completed, and operation started.
Nissei Plastic (Taicang) Co., Ltd. established as a subsidiary in Taicang, China.
Nissei Plastic Machinery America Inc. established as a production subsidiary.
Office opened in Queretaro, Mexico.
Nissei Homma Machinery Co., Ltd. established. Cumulative sale of 130,000th injection molding machine achieved.
Inherited all business of Homma Machinery Co., Ltd.
Accreditation shifted to ISO9001: 2015 version and ISO14001: 2015 version.
New US factory completed, and operation started.
Nissei Europe, s.r.o. established as a subsidiary in Slovakia.
Office opened in Chennai, India.
Taicang factory relocated, expanded and started operations.
Acquired 75% stake in Italian injection molding machine manufacturer Negri Bossi S.P.A., making it a subsidiary.
Cumulative sale of 140,000th injection molding machine achieved.
US sales subsidiary Nissei America, Inc. and US production subsidiary Nissei Plastic Machinery America Inc. are merged. The surviving company, Nisssei America, Inc. is established in Texas.
Nissei Plastic Machinery (Haiyan) Co., Ltd. established as a production subsidiary in Haiyan County, Zhejiang Province, China.
Sub-subsidiary Nissei (Malaysia) Sdn. Bhd. upgraded to subsidiary status. Moved to the Tokyo Stock Exchange Prime Market and the Nagoya Stock Exchange Premier Market.
Acquired Taicang Takita Metal Products Co., Ltd. in Taicang, China as a subsidiary.
China Haiyan factory completed and started operation.
Nissei Plastic Industry has established a Vulnerability Disclosure Policy and launched a dedicated contact point, effective September 11, 2026. The measures aim to enhance product security and enable prompt responses to potential vulnerabilities.
Nissei Plastic Industrial expresses sympathy to those affected by the earthquake centered in Kumamoto Prefecture. The company reports no casualties or property damage at its facilities and says it is operating as usual. It will support affected customers in restoring their production facilities.
日精树脂工业于10月28日为中国第二个生产基地日精塑料机械（海盐）有限公司举行开业典礼，该工厂于今年1月开始运营。海盐工厂已启动注塑机组装及铸件零部件加工，第二期设备也已设置完毕并开始准备批量生产。10月29日至31日举办的“NISSEI RED EXHIBITION 2024”展出6台注塑机，并展示面向化妆品、医疗和汽车等领域的技术方案及环保材料利用方案。
日精树脂工业在中国浙江省海盐县建设的新工厂于2023年12月竣工，并于2024年1月投入使用。工厂组装两种NEX系列电动注塑机，并通过FMS生产线加工铸件等零部件，月产能预计为15台。海盐工厂也将作为零部件供应基地，支持太仓工厂及全球供应链。
日精树脂工业推出锁模力为2,942kN（300吨）的复合式立式注塑机“TWX300RⅢ36V”，并于11月1日起接受订单。新机加入原有的220吨机型，使TWX-RⅢ系列扩展为两种机型。系列采用复合式锁模机构，模具安装面高度统一为1,000mm，较以往设备降低约30%，并具备直压式锁模机构及低压模具保护功能。
日精樹脂工業在上海舉辦的第32屆國際塑膠與橡膠工業展（Chinaplas 2018）將展示兩款電動注塑機：NEX220ⅢT-50E及另一台。這兩台機器針對汽車、電子零件、醫療器械及化妝品容器等行業，提供自動化生產與高附加值成形解決方案。NEX-ⅢT系列以低慣性伺服馬達、射出機構及高精度計量控制為特色，具備自動鎖模力補正與直接鎖模力設定功能，並配備TACT IV控制器。
日精树脂工业株式会社将于11月29日至12月2日在东莞举行的DMP 2016展出复合式与电动式注塑机，为汽车行业介绍自动化方案，并面向连接器等电子零件行业演示精密稳定成形技术。展出的电动式机型为中国太仓工厂生产的NEX80ⅢT-5E，将现场演示12个连接器的稳定成形，并通过对比测量成形品重量展示“预填充”功能的效果。
日精树脂工业株式会社将参加4月在上海举办的「Chinaplas 2016」和「PM CHINA 2016」，展示由太仓工场制造的电动式注塑机等设备。Chinaplas展会上将使用太仓制「NEX180ⅢT-36E」及日本制「TNX100R18V」进行现场成形演示，并介绍面向化妆品等行业的成形方案及设备洁净度。
日精树脂工业将于11月18日至21日在东莞举行的DMP 2015展出油电复合式射出成形机FNX180ⅢT-36A及全电动式射出成形机NEX80ⅢT-5E。现场将演示高附加值化妆品容器的双重成形及金属粉末注射成形。
日精树脂工业为强化并重组中国市场销售体制，设立日精树脂工业科技（太仓）有限公司，预定于2015年4月1日开始营业。新公司将销售总部设在太仓生产基地，并继续负责东莞、大连、天津和武汉据点的业务，提供销售及售后服务。设立后，日精树脂工业集团的海外销售法人增至13家。