Seamless Steel Tubes,Welded Steel Tubes,Taiwan

About Us

Specializing in manufacturing and processing services for welded and seamless steel pipes across various materials.

　Mong Jang SteelIndustrial Co., Ltd. Established in 1991.

With a long-standing commitment to the steel industry, Mong Jang Steel specializes in metal surface treatments and seamless steel pipe manufacturing services. As a vital cornerstone of industrial development, the steel industry requires not only advanced technical expertise, but also extensive practical experience and rigorous, consistent quality management.

Throughout our journey, Mong Jang Steel has navigated economic cycles and changing market conditions. By leveraging years of accumulated manufacturing expertise and technical know-how, we continuously refine our processes and enhance our service quality. Under the guidance of our professional management team, we remain dedicated to the core values of professionalism, responsibility, and steady operations, committed to delivering reliable metal surface treatment solutions and high-quality products to our clients.

Among our offerings, seamless steel pipes produced by Mong Jang Steel are highly recognized in both domestic and international markets. Our products are widely utilized in automotive and motorcycle component manufacturing. Supplied through distributors and supply chain partners, our tubing is processed into high-precision components and integrated into products for globally renowned brands such as Honda, TOYOTA, and YAMAHA. Furthermore, through overseas supply chain partners, our products are exported for use in Vespa in Europe and Bombardier in Canada, highlighting Mong Jang Steel's professional strength in steel pipe manufacturing, metal processing, and consistent quality stability.

Driven by continuous growth in operational scale and to meet the demands of capacity expansion and corporate upgrading, Mong Jang Steel constructed a new manufacturing plant in the Fengtian Industrial Park, Yunlin County. By introducing automated equipment and integrating downstream manufacturing processes, the company has further enhanced overall production efficiency and expanded its service capability.

Corporate Philosophy / Management Philosophy

Professional Excellence • Quality First • Sustainable Innovation

Since its establishment, Mong Jang Steel Industry Co., Ltd. has remained deeply rooted in the steel industry. Guided by our core business philosophy of 'Professionalism, Quality, Responsibility, and Sustainability,' we are committed to delivering stable, reliable products and comprehensive services.

We recognize that steel manufacturing relies not only on advanced equipment and technology, but even more so on long-accumulated practical experience and rigorous quality management. Consequently, we continuously refine our technical expertise and optimize production processes, maintaining strict quality control at every stage to consistently satisfy customer needs and quality standards. In response to rapid market changes and ongoing industrial upgrading, Mong Jang Steel continues to advance toward automation, efficiency, and specialization—actively boosting production capacity, enhancing manufacturing technologies, and integrating supply chain resources to elevate our overall service capability.

We believe that sustainable business growth stems from customer trust and long-term partnership. Looking ahead, Mong Jang Steel will continue to build upon expertise, adhere strictly to quality, and remain bound to accountability. By driving innovation through steady progress, we look forward to growing alongside our clients, partners, and employees to create lasting value together.