#Japan #3D Printing #Minato #Mizuho Bank #Polyuse

Polyuse Secures 1.1 Billion Yen Funding

In a significant boost to its operations, Polyuse, a pioneering company in the construction 3D printing sector, has successfully raised 1.1 billion yen from Mizuho Bank and Shoko Chukin Bank. This funding marks a critical step for the company, increasing its total financing to approximately 5 billion yen. The latest round of funding is notable for being unsecured and lacking guarantees, which alleviates the dilution of equity, allowing the company to continue its innovative trajectory without affecting its current shareholders.

Polyuse’s flagship product, the construction 3D printer "Polyuse One," aims to address pressing challenges within the construction industry, specifically in improving productivity and supporting sustainable infrastructure maintenance. The company successfully completed its Series B round funding, amounting to about 2.7 billion yen, in December 2025, showcasing its robust financial growth and market confidence.

Background of Funding

The construction industry is facing significant challenges, including a shortage of skilled labor and the transfer of skills to new workers. The capability to sustain disaster recovery and infrastructure maintenance has deteriorated, making it increasingly difficult to support long-term industry needs. Polyuse is tackling these social issues head-on by leveraging its 3D printing technology to evolve existing construction methods and establish a new infrastructure foundation.

In January 2022, Polyuse became the first company in Japan to utilize 3D printing technology in a project under the jurisdiction of the Ministry of Land, Infrastructure, Transport and Tourism. Since then, they have accumulated over 300 construction projects, predominantly in the public sector. This funding will allow Polyuse to deepen its collaborative efforts with partner companies and construction sites, aimed at fast-tracking practical technology development.

A key part of this effort involves utilizing AI to continuously learn from construction data collected on-site. This integration aims to evolve the Polyuse One into a form of
For ongoing innovation, the company is implementing a meld of physical AI with their 3D printing capabilities. The goal is to transform insights gained from each job site into broader industry value, enabling a construction platform accessible to all throughout the country.

Comments from Financial Institutions

Representatives from both Mizuho Bank and Shoko Chukin Bank have expressed strong support for Polyuse’s mission. Kaihiro Aida, Executive Officer of Mizuho Bank, highlighted the company’s commitment to introducing cutting-edge technology to boost productivity and sustain infrastructure. He stated, “Mizuho Bank empathizes with Polyuse’s dedication to tackling social challenges and acknowledges its potential to transform the global industry.”

Similarly, Koichi Takahashi from Shoko Chukin Bank commented on Polyuse’s mission to solve vital societal issues. He referred to the company as a key player in driving change within the construction landscape and pledged ongoing support for its sustained growth.

Polyuse One: A New Era in Construction 3D Printing

The "Polyuse One" 3D printer stands out as the only mass-produced domestic construction printer in Japan.

Features of Polyuse One:

• - Unique Design: Developed entirely in Japan, it boasts a track record of success in public works projects.
• - Direct 3D Modeling: Capable of constructing structures directly from design data with high precision using specialized mortars.
• - Efficient Framework Production: Substantially reduces the processes of designing, assembling, and disassembling traditional molds.
• - Enhanced Safety and Productivity: Addresses labor shortages while improving overall site safety and reducing construction timelines.
• - Complex Designs Made Simple: Delivers high-quality constructions of intricate designs that would typically take more time and money using conventional methods.
• - AI-Driven Evolution: Incorporates construction data to integrate with physical AI, advancing towards autonomous and sophisticated building methods.
• - Sustainable Practices: Supports sustainable construction through material and waste reduction, along with digital construction techniques.

The specifications of Polyuse One include a wide range of construction capabilities, making it adaptable for various projects and significantly enhancing the overall productivity of construction sites.

About Polyuse

Founded in June 2019 and led by executives Takuya Iwamoto and Kaito Ooka, Polyuse has its headquarters in Minato, Tokyo. The firm is committed to addressing the pressing challenges of the construction industry through innovative technologies like their 3D printers. Further information can be found on their official website: Polyuse and on their Twitter account.