Renovation of the Hirakata Plant, which supported two Osaka Expos

(Tokyo headquarters: Setagaya-ku, Tokyo; Osaka headquarters: Yodogawa-ku, Osaka; President: Yumi Nomura), a manufacturer of large membrane surface structures (tent structures), civil engineering and logistics materials, will complete renovation work at its main production base, Hirakata Plant (Hirakata, Osaka), at the end of February 2026, and will begin full-scale operations in March Full-scale operations will commence in March.

The purpose of this renovation is to upgrade the functions of the main base that has been responsible for the manufacture of membrane structures for the 1970 Osaka Expo and the 2025 Osaka/Kansai Expo. In addition to updating aging facilities and strengthening the production system, a comfortable working environment was created.

The Hirakata Plant, established in December 1967, began operations as an automotive interior manufacturing facility—the company’s primary business at the time.In April 1968, in preparation for the Japan World Exposition (Osaka Expo), the plant took on the role of a tent manufacturing facility, handling the membrane structures for the “U.S. Pavilion” and the “Fuji Group Pavilion” at EXPO ’70, thereby [Ko-A 2.1][Tetsu-in 2.2] to the popularization and development of membrane structures. Furthermore, for the 2025 Osaka-Kansai World Exposition, the plant manufactured membrane structures for numerous pavilions, including “City of the Future” and “Electricity Pavilion: Eggs of Possibility.” As a manufacturing hub supporting two Osaka World Expos, it has demonstrated its technical capabilities.

In addition, leveraging its advanced technical capabilities, the company has undertaken numerous large-scale projects both domestically and internationally, including the construction of a large umbrella structure in Medina—one of Islam’s holiest sites (completed in 2011). In addition to large-scale membrane structures, the company also manufactures disaster prevention products such as the “Mac Quick Shelter.”

In addition to updating the manufacturing facilities, the renovation included improvements to the employee workplace environment to create a production environment that is both more comfortable to work in and more future oriented. The manufacturing building features a membrane ceiling that creates a beautiful and comfortable space.
Through the renovation of the Hirakata Plant, Taiyo Kogyo will pass on to the next generation the manufacturing technology and spirit of monozukuri that it has cultivated over the years, and as a production base that continues to take on the challenge of creating new value, will contribute to solving social issues and to manufacturing in the future.

Location:	3-20, Sodai Tachika, Hirakata City, Osaka, 573-1132, Japan
Completed:	1967
Total floor area:	Site area: 16,581 m2 Building area: 8,956 m2
Production items:	Large membrane surface structures, tent warehouses, disaster prevention products

Renovation Details:
1. New office, break area, office, and café space
2. New conference room and exhibition space
3. Renovation of toilet booths
4. Renovation of ceiling in Building 1
5. Renovation of ceiling in Building 2
6. Secure site conductivity for visitors
7. Replacement of cubicle-type high voltage power receiving equipment
8. Road boundary fence work
9. Repair of elevated water tank and receiving water tank
10. Seismic reinforcement work

Area covered: 1,635m2
Number of floors: 2F
Construction period: June 2025 – February 2026
Occupancy: March 2026 –

[Reference]
February 14, 2020 Half a century after Osaka Expo, popular pavilion manufacturing plant still active
https://www.taiyokogyo.co.jp/news/11577/

April 26, 2023 Two new buildings constructed at Fukui Plant to start operation in May
https://www. taiyokogyo.co.jp/news/11137/

Taiyo Kogyo is a leading manufacturer of large membrane surface structures that are economical, easy to install, translucent, and well designed. Under the corporate philosophy of “Unlocking the infinite possibilities of membranes to deliver an inspiring and comfortable environment to our customers. Under the corporate philosophy of “We will bring excitement and a comfortable environment to our customers by exploiting the infinite possibilities of membranes,” TSP Taiyo has been supporting the safety and security of society by utilizing the characteristics of light and strong materials to expand its business in various fields including construction, as symbolized by the roof of the giant dome, civil engineering, logistics, and environmental fields.
Together with group companies such as TSP Taiyo Corporation, which provides event consulting services, and ACTIO Corporation, which manages facilities, we are working to “make the world softer and the future warmer. We aim to “make the world soft and the future warm. We aim to “soften the world and warm the future.