In January 2005, Japan Paper Industry Co., Ltd. (the surviving company, now Dynapack Corporation) transferred all sales related to production through a split-off method to Dai Nippon Paper Industry Preparation Co., Ltd., and Japan Hyperpack Co., Ltd. (dissolved company) succeeded all sales related to production through the same method, merging and changing the company name to Dynapack Corporation.
January 2005: Merged with Nippon Paper Industries Co., Ltd. (surviving company, now DynaPack Co., Ltd.) and Nippon Hyper Pack Co., Ltd. (dissolved company) which transferred all sales related to production through a split-off method, and changed the company name to DynaPack Co., Ltd.
In July 2005, the management integration of Dai Nippon Paper Industry Toki Factory and Union Pack Co., Ltd.'s head office factory (now Toki Dynapack Co., Ltd., a current consolidated subsidiary) was carried out.
In July 2005, Aibao Packaging Products Trading (Shenzhen) Co., Ltd. was established in Shenzhen, Guangdong Province, China (now Tainer Packaging Products Trading (Shenzhen) Co., Ltd., a current consolidated subsidiary).
July 2005: Integrated management of Dainippon Paper Industries Toki Factory and Union Pack Co., Ltd. headquarters factory (now Toki DynaPack Co., Ltd., current consolidated subsidiary).
July 2005: Established AiPak Packaging Products Trading (Shenzhen) Co., Ltd. in Shenzhen, Guangdong Province, China (now Tainer Packaging Products Trading (Shenzhen) Co., Ltd., current consolidated subsidiary).
In November 2005, a sales office of Suzhou Sun Packaging Co., Ltd. was opened in Hangzhou, Zhejiang Province, China.
November 2005: Opened the Hangzhou sales office of Suzhou Sun Packaging Co., Ltd. in Hangzhou, Zhejiang Province, China.
In May 2006, invested in NEW TOYO DYNAPAC CO., LTD. in Vietnam.
May 2006: Invested in NEW TOYO DYNAPAC CO., LTD. in Vietnam.
In December 2007, NEW TOYO DYNAPAC CO., LTD. was made a 100% subsidiary and renamed Dynapac (Hanoi) Co., Ltd. (a current consolidated subsidiary).
December 2007: Made NEW TOYO DYNAPAC CO., LTD. a 100% subsidiary and renamed it Dynapac (Hanoi) Co., Ltd. (current consolidated subsidiary).
In May 2009, Miyo-shi, Aichi Prefecture, was established as Miyo-shi Business Office.
May 2009: Established Miyoshi Office in Miyoshi City, Aichi Prefecture.
In July 2009, Sun Packaging Co., Ltd. and Pax Aichi Co., Ltd. merged and changed the company name to Tajimi Dynapack Co., Ltd. (a current consolidated subsidiary).
July 2009: Merged San Package Co., Ltd. and Pax Aichi Co., Ltd., and changed the company name to Tajimi DynaPack Co., Ltd. (current consolidated subsidiary).
In July 2010, Dai Nippon Paper Industry Co., Ltd., Japan Hyperpack Co., Ltd., East Japan Hyperpack Co., Ltd., and New Japan Hyperpack Co., Ltd. were absorbed and merged.
July 2010: Absorbed Nippon Paper Industries Co., Ltd., Nippon Hyper Pack Co., Ltd., East Japan Hyper Pack Co., Ltd., and New Japan Hyper Pack Co., Ltd.
In October 2010, Yamagata Hyperpack Co., Ltd. was absorbed into Fukushima Business Office.
October 2010: Absorbed Yamagata Hyper Pack Co., Ltd. into Fukushima Business Office.
In June 2014, DYNAPAC PACKAGING TECHNOLOGY (PHILIPPINES) INC. was established in the Philippines (a current consolidated subsidiary).
June 2014: Established DYNAPAC PACKAGING TECHNOLOGY (PHILIPPINES) INC. in the Philippines (current consolidated subsidiary).
In August 2014, DYNAPAC (HAIPHONG) CO., LTD. was established in Vietnam (a current consolidated subsidiary).
August 2014: Established DYNAPAC (HAIPHONG) CO., LTD. in Vietnam (current consolidated subsidiary).
In July 2016, acquired shares of Crown Paper Industry Co., Ltd. (a current consolidated subsidiary) and made it a subsidiary.
July 2016: Acquired shares of Crown Paper Industry Co., Ltd. (current consolidated subsidiary) and made it a subsidiary.
In July 2018, acquired shares of Asahi Cardboard Co., Ltd. (a current consolidated subsidiary) and made it a subsidiary.
July 2018: Acquired shares of Asahi Danboru Co., Ltd. (current consolidated subsidiary) and made it a subsidiary.
In April 2019, acquired shares of GRAND FORTUNE CORPORATION SDN. BHD. (now DYNAPAC GF (MALAYSIA) SDN. BHD., a current consolidated subsidiary).
April 2019: Acquired shares of GRAND FORTUNE CORPORATION SDN. BHD. (now DYNAPAC GF (MALAYSIA) SDN. BHD., current consolidated subsidiary).
In January 2020, acquired shares of Ogura Paper Co., Ltd. (now Suruga Dynapack Co., Ltd., a current consolidated subsidiary).
January 2020: Acquired shares of Ogura Paper Co., Ltd. (now Suruga DynaPack Co., Ltd., current consolidated subsidiary).
In January 2022, acquired shares of Joso Co., Ltd. and Joso Pack Co., Ltd., making them subsidiaries.
January 2022: Acquired shares of Jo-sei Co., Ltd. and Jo-sei Pack Co., Ltd., and made them subsidiaries.
In March 2024, acquired shares of Vietnam TKT Plastic Packaging Joint Stock Company, making it a subsidiary.
March 2024: Acquired shares of Vietnam TKT Plastic Packaging Joint Stock Company and made it a subsidiary
July 2024: Jo-sei Pack Co., Ltd. was absorbed into Asahi Danboru Co., Ltd.
July 2024: Merged Jo Sai Pack Co., Ltd. into Asahi Danboru Co., Ltd.
August 2025: Acquired shares of Hoang Hai Vietnam Packaging Joint Stock Company and made it a subsidiary.
August 2025: Acquired shares of Hoang Hai Vietnam Packaging Joint Stock Company and made it a subsidiary
November 2025: Acquired shares of Marunaka Paper Industry Co., Ltd. and made it a subsidiary.
November 2025: Acquired shares of Maru Naka Paper Industry Co., Ltd. and made it a subsidiary
Dynapack Co., Ltd. announced its official mascot character. The new character aims to strengthen the company's brand image and promote communication with customers. Details can be found on the official website.
Dynapac Co., Ltd. established a basic policy to prevent harassment during job hunting. The policy aims to create an environment where students and job seekers can pursue their activities with peace of mind.
Dynapac Co., Ltd. will exhibit at Nagoya Stock Exchange IR EXPO 2026, scheduled for August 20, 2026. The company provides information on a wide range of topics, including its corporate profile, business operations, and sustainability. Through this exhibition, it aims to strengthen its communications with investors and other stakeholders.
Masashi Nozawa will move from full-time adviser to part-time adviser, effective October 1, 2026. The personnel change is part of the company's organizational management.
DynaPack manufactures cardboard using recycled raw paper. At the Fujimi Factory of Kagome, they carry out the disposal and collection of paper container waste paper and promote the use of recycled cardboard. Oji HD re-resources paper fibers through cleaning and separation to produce raw paper for cardboard.
DynaPack is conducting a demonstration of cardboard manufacturing using recycled raw paper. It is also promoting the recycling of paper container damaged paper discharged and collected at the Fujimi factory, as well as the reuse of paper fibers after washing and separation. This promotes the recycling of paper containers and the reuse of cardboard.
Dyna Pack Inc. has introduced a solar power system at the Toki factory. This promotes environmental consideration and sustainable energy use.
Effective April 1, 2026, Mr. Kimiyuki Shimoyama will be transferred to the position of Matsumoto Plant Manager and Quality Control Section Manager, Mr. Ken Fukumura will be transferred to the position of Kanie Plant Manager and General Affairs Section Manager, and Mr. Kazuhiro Yasui will be transferred to the position of Kanie Plant Production Manager and Facility Section Manager.
Dynapack Co., Ltd. received certification for the fiscal year 2026 as a company engaged in healthy management.
Ken Fukimura will be transferred to the position of Kanie Plant Manager and Production Manager, and will also serve as Facility Manager and General Affairs Manager.