Oriental Shiraishi

Basic Information

Stock Code
1786
Industry
Construction
Category Detail
Construction & Civil Engineering
Prefecture
Tokyo
Establishment Year
October 1952
Listing Year
April 2021
Official Website
https://www.orsc.co.jp/
TSE Information
TSE Information
Yahoo! Finance
Yahoo! Finance
Other Companies
Br. HD, Yamaura, Nakabo Tech, Fuji PS, Miyaji Engineering Group, Kawada Technologies, Yokogawa Bridge Holdings, Komai Haltec, Takigami Kogyo, Kawagishi Kogyo, Nasu Denki Tekko, Takada Kiko

Overview

Oriental Shiraishi is a major player in the construction industry founded in 1952, specializing in prestressed concrete works, and boasting advanced technological expertise in bridge superstructure construction and caisson methods.

Current Situation

Oriental Shiraishi recorded net sales of approximately 64.5 billion yen, operating profit of about 5.4 billion yen, and net profit of around 3.7 billion yen for the fiscal year ending March 2025, maintaining solid performance. Centering on bridge superstructure works and pneumatic caisson methods, it demonstrates competitiveness in large-scale infrastructure projects across Japan and overseas. The company is focusing on its proprietary repair and reinforcement technologies, as well as deck replacement works and other renewal projects, establishing a diverse order base. It achieves efficient supply through an integrated construction system utilizing subsidiaries and PC product production at its three in-house factories nationwide. From an ESG management perspective, it strengthens safety management and environmental considerations to pursue corporate sustainability. It relisted on the Tokyo Stock Exchange Prime Market in 2021, enhancing its fundraising capabilities and advancing medium- to long-term growth strategies. While aiming to expand public infrastructure projects, it is developing ICT construction technologies and environmental technologies to address future demand.

Trivia

Interesting Facts

  • Acquired both prestressed bridge and caisson technologies through mergers.
  • Continued stable growth post-TSE listing, highly regarded in the industry.
  • Handled famous bridge projects such as Tsunoshima Bridge and Rainbow Bridge.
  • PC product supply leveraging three nationwide factories is a major strength.
  • Deploys multifaceted construction solutions through subsidiaries.
  • Member of Midori-kai and Sanwa Group, with strong ties to related companies.
  • Noted as a successful reconstruction case from corporate rehabilitation proceedings.
  • Pursuing international expansion through overseas monorail project orders.
  • Headquartered in Toyosu, Koto-ku, Tokyo, engaging in local community contributions.
  • Major shareholders including Itochu Corporation provide strong support.

Hidden Connections

  • Established stable management through capital and business alliances with major trading houses like Itochu Corporation.
  • As a member of the Sanwa Group, strengthens order acquisition through collaboration with related construction companies.
  • Built deep transaction relationships with Nippon Steel and Pacific Cement in bridge fabrication.
  • Maintains close partnerships with domestic general contractors and infrastructure operators.
  • Serves as a gateway for Japanese technology in overseas infrastructure projects.
  • Demonstrates cost competitiveness through vertically integrated model of product manufacturing and construction.
  • Continuously promotes CSR activities and community engagement through Midori-kai.
  • Increased attention from capital markets following designation change to Tokyo Stock Exchange Prime.

Future Outlook

Growth Drivers

  • Increasing demand for renewal due to aging infrastructure
  • Evolution of construction technologies using ICT and AI
  • Revitalization of public projects by local governments
  • Expanding needs for seismic and long-life technologies
  • Gaining projects from rising overseas infrastructure investments

Strategic Goals

  • Expand domestic market share in prestressed concrete business
  • Increase orders for monorail and bridge works in overseas markets
  • Establish sustainable construction materials and technologies
  • Fully implement ICT construction management for efficiency gains
  • Enhance brand value through stronger community partnerships

Business Segments

Bridge Construction and Repair Business

Overview
Possesses high technological capabilities and extensive track record in bridge construction and maintenance.
Competitiveness
Competitive edge through proprietary PC methods and repair/reinforcement technologies
Customers
  • Local governments
  • Ministry of Land, Infrastructure, Transport and Tourism
  • Railway companies
  • Expressway companies
  • General contractors
Products
  • Prestressed Concrete Bridge Superstructures
  • Pier Repair and Reinforcement Methods
  • Deck Replacement Works
  • Seismic Reinforcement Technology

Foundation Works and Caisson Methods

Overview
Deploys proprietary methods for marine and underground foundation structures, maintaining high reliability.
Competitiveness
Advanced caisson construction technology and safety management system
Customers
  • Port authorities
  • Railway infrastructure operators
  • Developers
  • Public project issuers
Products
  • Pneumatic Caisson Design and Construction
  • Deep Foundation Works
  • Marine Foundation Structures

PC Products Manufacturing and Supply

Overview
Manufactures high-quality PC members at three factories nationwide for efficient supply.
Competitiveness
Stable supply and product quality control through in-house factories
Customers
  • Own and external general contractors
  • Construction materials trading companies
  • Public project issuers
Products
  • Prestressed Concrete Members
  • Bridge PC Members
  • Deck Members

Infrastructure Renewal and Maintenance

Overview
Extensive track record in infrastructure extension and renewal projects, providing safe and rapid construction.
Competitiveness
Cost reduction and work efficiency improvements through proprietary repair technologies
Customers
  • Local governments
  • Expressway companies
  • Railway companies
Products
  • Pier Repair and Reinforcement
  • Deck Replacement
  • Seismic Reinforcement Technology

Overseas Infrastructure Development Support

Overview
Promotes construction support and technical partnerships in large overseas projects, mainly in the Middle East.
Competitiveness
Construction system compliant with international standards
Customers
  • Overseas governments
  • Multinational construction firms
Products
  • Monorail Construction
  • Bridge Construction Technology Support

Competitive Advantage

Strengths

  • Advanced prestressed concrete technology
  • Long track record in proprietary caisson methods
  • Manufacturing capacity at three in-house factories nationwide
  • One-stop service for bridge superstructures and foundations
  • Sustainable infrastructure renewal technology
  • Enhanced credibility from Tokyo Stock Exchange Prime listing
  • Strong relationships with a broad customer base
  • Stable financial foundation
  • Advanced construction safety management system
  • Strong ties with related companies
  • Capability to handle diverse public and private projects
  • Ongoing investment in long-term technology development
  • Clear focus and execution in key businesses
  • Regionally integrated construction system
  • Compliance with laws and environmental considerations

Competitive Advantages

  • Pioneering PC bridge superstructure construction technology
  • Leading position in large-scale caisson projects
  • Efficient prestressed product manufacturing at in-house factories
  • Differentiation through proprietary technologies in repair and reinforcement
  • Proven track record and trust in public infrastructure projects
  • Risk reduction via high construction quality and safety management
  • Revenue stability from diversified business portfolio
  • Accumulation and deployment of domestic and international construction know-how
  • Capital and operational support from major shareholders
  • Promotion of integration with latest ICT and construction technologies
  • Long-term compliance capabilities and regulatory adherence
  • Order securing through trusted relationships with local communities
  • Product development and proposal capabilities aligned with market needs
  • Enhanced cost competitiveness through improved construction efficiency
  • Brand enhancement through sustainability management

Threats

  • Risk of reduced orders due to cuts in public project budgets
  • Decline in work efficiency from labor shortages in construction industry
  • Increased infrastructure damage risks from climate change
  • Loss of market share due to competitors' technological innovations
  • Cost pressures from rising material prices
  • Increased construction costs from stricter regulations
  • Geopolitical risks impacting overseas operations
  • Project delays and damages from natural disasters
  • Rising maintenance costs from equipment aging
  • Cash flow risks from prolonged construction projects
  • Fluctuations in overseas project revenues due to exchange rate changes
  • Increased burdens from growing environmental consideration demands

Innovations

2024: R&D of Low-Carbon PC Materials

Overview
Developing low-carbon, high-strength prestressed concrete materials to reduce environmental impact.
Impact
Expected to reduce CO2 emissions by 30%, aiming for future material standardization.

2023: Introduction of ICT Construction Management System

Overview
Company-wide rollout of ICT-based management systems to improve efficiency and quality in construction projects.
Impact
Achieves reduction in work errors and shorter project timelines, contributing to higher customer satisfaction.

2022: Development of Special Resin Technology for Bridge Repair

Overview
Proprietarily developed high-durability resin for pier repair and reinforcement, expanding construction track record.
Impact
Successfully extends repair effectiveness and shortens construction periods.

2021: Mass Production of PC Structures for Monorails

Overview
Expanded factory production of prestressed concrete structures for monorails to accelerate overseas expansion.
Impact
Contributes to increased orders for large overseas projects.

2024: AI-Based Construction Risk Analysis

Overview
Developing and introducing AI technology for analyzing construction safety risks.
Impact
Aims to reduce accident rates and enhance employee safety awareness.

Sustainability

  • Promoting recycling of construction waste and increasing usage rates
  • Improving energy efficiency at factories
  • Thorough green procurement and strengthened supply chain management
  • Active participation in local environmental conservation activities
  • Acquisition and operation of international safety and health management standard ISO 45001