山一特殊合金株式会社 Company Profile

Through manufacturing in casting, we contribute to society with a customer-first mindset and continuously strive to improve technology and quality to ensure the sustainability of the company.

Our company was founded in 1945 as a foundry, inheriting casting technology and expanding into the field of copper alloys. In 1959, we established a bronze casting factory. We have continuously challenged ourselves to commercialize copper alloy products that are used in various applications around the world. Our fundamental stance is to respond to our customers' needs, with all employees committed to creating products that our customers can trust and enjoy. Moving forward, we will continue to innovate our casting technology and strive for research, leveraging the advantages of being a small company, such as flexibility and short delivery times. We aim to reduce costs through labor-saving measures in prototype development, small lot production, and the establishment of diverse small-batch production while maintaining high-quality manufacturing. As a partner to our valued customers who have obtained international certifications such as QS9000 and ISO9001, and ISO14001, we will make further efforts to strengthen our high-quality assurance system and continue to challenge ourselves to meet the needs of the times in our manufacturing processes.