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TMS International Celebrates 100 Years of Service

In 2026, TMS International proudly commemorates its 100th anniversary, marking a significant milestone in its history and contributions to the industrial sector. Founded during the vibrant era known as the Roaring Twenties, the company emerged as a pioneer in outsourced industrial and environmental services when America was at the cusp of remarkable industrial growth and innovation.

The story of TMS International began in 1926, when a young Lithuanian immigrant, David Coslov, established what was originally named Tube City Iron and Metal in McKeesport, Pennsylvania. This modest one-person operation focused on processing scrap iron and steel in a city known for its industrial prowess, with significant tube mills making their mark on the American landscape. The name 'Tube City' was emblematic of the vibrant industrial activity that characterized the region during that time.

As the company evolved, it relocated to Glassport, Pennsylvania, in 1928, where it continued to grow. In 1987, after a series of transitions, David's grandson, I. Michael Coslov, took the helm, rebranding the company as Tube City, Inc. Throughout these formative years, processing scrap was labor-intensive and required significant manual effort—something reflected in David Coslov's meticulous care for his production tools, indicating his commitment to quality and progress.

Over the decades, TMS has adaptively transitioned through different eras, including overcoming the Great Depression, World War II, operational challenges after 9/11, the Great Recession, and the COVID-19 pandemic. Each challenge brought lessons and resilience, reinforcing the company’s ability to innovate and adapt effectively in a dynamic marketplace.

The merger of Tube City with International Mill Service (IMS) in 2004 exemplified a strategic evolution for the company, further solidifying its standing as the leading outsourced service provider for the North American steel industry. This strategic move linked the histories of both organizations and emphasized a commitment to deliver unparalleled products and services internationally.

In 2016, reflecting a broader global presence, the corporation rebranded itself as TMS International Corporation. The company currently employs over 4,200 dedicated professionals across more than 70 locations worldwide, showcasing its substantial growth and influence in the industry.

As TMS approaches this remarkable century mark, Joel Hawthorne, President and CEO, stated, “Celebrating 100 years of existence is an extraordinary achievement that illustrates the resilience and excellence of TMS.” The company’s success is attributed not just to its customer services and products but also to the talented teammates whose passion and creativity drive continuous improvement and innovation.

To honor the legacy and contributions it has made over the years, TMS has planned a series of celebratory events throughout 2026, engaging with customers at several industry trade shows and hosting special celebrations at its facilities. Such recognition is essential not just for the company, but for the communities it serves and the environment, reinforcing its ongoing dedication to sustainable practices and reducing carbon footprints.

With a legacy built on trust, innovation, and dedication to environmental responsibility, TMS International stands at the forefront of the industrial services sector as it embarks on this new chapter. The company remains committed to paving the way for future generations with robust support systems and innovative solutions that cater to evolving market needs.

For more information on TMS International's centenary celebrations and its ongoing environmental initiatives, visit TMS International's official website.