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TBK Achieves the Highest DBJ Environmental Rating

In a notable achievement, TBK has secured the highest rank in the Japan Development Bank's (DBJ) environmental rating system. This recognition underscores the company's cutting-edge initiatives in sustainability, particularly in the automotive sector, where they are committed to eco-friendly practices. On April 22, 2026, a ceremony was held to honor TBK's President, Kaoru Ogata, and the Tohoku branch chief of DBJ, Koichi Okai, who praised the company's environmental management efforts.

DBJ's environmental rating system is groundbreaking as it was the world's first lending program designed to assess and evaluate corporate environmental management. The system utilizes a screening framework developed by DBJ to determine each company's effectiveness in sustainable practices.

TBK was commended for its exceptional approach to sustainability through three key aspects:

Leadership-Driven Environmental Management

The company prioritizes environmental management through a robust leadership framework. Under the guidance of top management, TBK is committed to collecting and refining extensive environmental data across all sites within the group. This initiative aims to integrate environmental considerations into production activities effectively while promoting awareness and continuous improvement in manufacturing practices. By implementing a PDCA (Plan-Do-Check-Act) cycle, the company fosters a collaborative environment between management and operational teams.

Electrification Strategy for Commercial Vehicles

Acknowledging the long-term trend towards the electrification of commercial vehicles, TBK has defined its vision for 2030 as a company that swiftly creates value in line with changing times. The company is actively working on a product development roadmap focusing on environmentally friendly practices, reflecting the ongoing shift towards electric vehicles. The mid-term management plan sets milestones to ensure steady progress, and TBK collaborates closely with customers to develop products that minimize environmental impact. The aim is to effectively communicate the quantified benefits of reduced environmental burdens realized through real-world tests.

Strengthening Supplier Partnerships for Sustainable Supply Chains

To construct a sustainable supply chain, TBK has enhanced collaboration with suppliers by continuously evaluating their environmental initiatives and providing improvement guidance based on the Green Procurement Guidelines. In addition, the company has recently announced a new human rights policy, further extending its impact by ensuring that a wider range of suppliers are informed through explanatory meetings. This approach is integral to TBK's global production and purchasing activities, emphasizing their commitment to sustainability.

As a leading player in the automotive component sector, TBK specializes in critical safety parts such as brakes and pumps integral to engine cooling and lubrication. With a commitment to supplying high-quality components, the company supports safe and reliable logistics. Additionally, TBK employs advanced casting and processing technologies, while also focusing efforts on developing electrification solutions suitable for the upcoming era.

Under the guiding principle of delivering products that bring joy to customers and contribute to society, TBK emphasizes the importance of balancing 'social value' with 'economic value' in its sustainability management practices. The company aspires to continue expanding its contributions to society while pursuing sustainable growth and innovation in manufacturing.

Company Overview

• - Company Name: TBK Co., Ltd.
• - Location: 4-21-1 Minami Naruse, Machida City, Tokyo
• - Representative: Kaoru Ogata, President
• - Founded: August 1, 1949
• - Business Activities: Design, manufacturing, sales, and repair of parts for various vehicles, industrial machinery, and construction equipment.
• - Official Website: tbk-jp.com