Polyuse Inc. (Headquarters: Minato-ku, Tokyo; Representative Directors: Takuya Iwamoto / Wataru Ooka; hereinafter "Polyuse") has raised ¥1.1 billion in debt financing from Mizuho Bank and The Shoko Chukin Bank. The financing is unsecured and unguaranteed, and involves no dilution of shares. Following the completion of approximately ¥2.7 billion in equity financing in its Series B round in December 2025, this financing brings Polyuse's cumulative funding to approximately ¥5 billion. The funds will be used to strengthen the business as a whole, including the development and wider adoption of its flagship product, the construction 3D printer "Polyuse One," helping to raise productivity in the construction industry and to maintain infrastructure sustainably.
■Background to the financing
In the construction industry, labor shortages and the challenge of passing on skills are becoming increasingly serious, making it harder and harder to sustain disaster recovery and the maintenance and management of infrastructure. To solve this social issue, Polyuse is taking on the challenge of evolving existing construction methods, starting with construction 3D printers, and building a new foundation for infrastructure.
In January 2022, our technology became the first of its kind in Japan to be used in construction work under MLIT's jurisdiction, and we have since built a track record of more than 300 construction projects, mainly in public works.
With this ¥1.1 billion in financing, we will deepen our co-creation with partner companies and construction sites and accelerate practical technology development. Specifically, by having AI continuously learn from the construction data accumulated on site, we will develop our construction 3D printer "Polyuse One" into "physical AI" that keeps evolving the more experience it gains.
We aim to turn the insights generated at each individual site into value for the industry as a whole, and to build a construction platform that lets anyone, anywhere in Japan, make use of this technology.
■Comments from the financial institutions (in no particular order)
Comment from Kazuhiro Aida, Executive Officer and Area Head, Mizuho Bank, Ltd.
Polyuse Inc. is a pioneer in delivering labor savings, higher productivity and sustainable infrastructure maintenance in the construction industry through the social implementation of construction 3D printing technology. Mizuho Bank has extended this loan because we share the company's vision and value its advanced technological capabilities, its commitment to tackling social issues head-on, and its potential to transform the industry globally. Guided by our purpose, "Proactively innovate together with our clients for a prosperous and sustainable future," Mizuho will continue to contribute to a sustainable society as a comprehensive financial partner that supports our clients' challenges.
Comment from Koichi Takahashi, Executive Officer and General Manager of the Startup Business Department, The Shoko Chukin Bank, Ltd.
Shoko Chukin strongly shares Polyuse's commitment to tackling important social challenges in the construction industry, such as labor shortages and the need for higher productivity, and to building a next-generation infrastructure foundation centered on construction 3D printers, and we are pleased to have provided this financing. Backed by advanced technological capabilities, Polyuse is steadily advancing the social implementation of construction 3D printers. Given its pioneering spirit and its ability to drive industry transformation while bringing diverse stakeholders on board, we are confident that Polyuse will become a leader of the construction industry in the years ahead. Shoko Chukin will continue to support Polyuse's challenges and sustainable growth with all of its resources.
■About the construction 3D printer "Polyuse One"
[Features]
Japan's only domestically made, mass-production construction 3D printer
Developed in-house by Polyuse, it is Japan's only domestically made, mass-production construction 3D printer, with an extensive track record in public works.
Prints structures directly from 3D data
Based on design data, it builds up layers of a dedicated mortar with high precision to automatically print concrete structures and formwork.
Major labor savings in formwork
It drastically reduces the formwork fabrication, assembly and stripping required by conventional methods, making construction more efficient.
Labor savings, a shorter construction period and improved safety
In addition to addressing labor shortages, it improves productivity and safety on construction sites by shortening the construction period and reducing hazardous work.
High-quality construction of complex shapes
Even complex shapes that take time and money to build with conventional methods can be printed with high precision and efficiency.
A construction platform that evolves with construction data
By leveraging the construction data accumulated on site, it will evolve toward advanced, autonomous construction through integration with physical AI.
Contributing to sustainable infrastructure development
By reducing materials and waste, saving labor and enabling digital construction, it supports sustainable construction and the realization of next-generation infrastructure.
[Specifications]
3D printer dimensions (W/D/H):
[Deployed] 4070×3603×2888 mm [Folded] 4224×1217×1297 mm
Print size (W/D/H): 3000×2500×1900 mm
Weight: 750 kg
Assembly time: 10 minutes
Power supply: Three-phase 200 V 30 A / Single-phase 100 V 15 A
Portability: Moves on casters, allowing flexible deployment on site
For details, click here
■About Polyuse Inc.
Company name: Polyuse Inc.
Location: 2-2-15 Hamamatsucho, Minato-ku, Tokyo
Representative Directors: Takuya Iwamoto / Wataru Ooka
Founded: June 2019
URL: https://polyuse.xyz
X (formerly Twitter): https://twitter.com/polyuse
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