Message Corporate Profile Home-About Us-Message MESSAGE TSK began as an individually managed enterprise, founded in Tokyo’s Sumida City in 1940. The business was evacuated due to war damage to its current location, where it was incorporated in 1952 as Tokyo Seimitsu Kan Co., Ltd. Since its foundation, TSK has prospered as a manufacturer of precision steel tubes. We are devoted to the manufacture of small-diameter, thin-walled tubes made of materials such as stainless steel, steel superalloys, and titanium. Aiming for ever higher precision and quality, TSK is engaged in relentless effort and diligent study in its quest to create products that meet the needs of the modern era. TSK products are used in a diverse range of fields throughout Japan and around the world, as exemplified by its seamless steel tubes and mirror-surfaced steel tubes. The widespread adoption of TSK products in the world’s most cutting-edge industries, such as semiconductors, aerospace, robotics, petroleum and petrochemicals, measuring instruments and automobile manufacturing, testifies to their superior quality and performance. Today the composition of global industry is facing a major turning point, driving intensifying demand for enhanced performance and diversification in products. TSK is leveraging its wealth of experience and technology to develop and manufacture products at the world’s top levels. For example, we are making full use of our advanced technologies combining rolling and drawing processes. TSK has built a system that can consistently generate products that respond to the needs of modern industries. Aiming to expand demand for its products, TSK is constantly pushing the envelope in technological innovation, leading the way to the advanced technologies of tomorrow. We also press tirelessly forward to make TSK a company that brings satisfaction to customers and fulfillment to employees.