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PLYMOUTH TUBE COMPANY AND SHADOWBRIAR CAPITAL PARTNERS ANNOUNCE WINAMAC, INDIANA CARBON & ALLOY SEAMLESS STEEL TUBE PLANT TRANSACTION

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WARRENVILLE, IL (November 06, 2024) – Plymouth Tube Company (“Plymouth”) has completed the sale of its Winamac, Indiana Carbon & Alloy Seamless Tube Mill (“Winamac”) to an affiliate of Shadowbriar Capital Partners (“Shadowbriar”). Winamac will operate as a stand-alone business named Crossroads Seamless USA.

The Winamac site consists of a Cold Draw, a Hot Mill, and a Quench and Temper line which manufacture carbon and alloy seamless steel tubing for diverse end markets, including construction, drilling, utilities, military, oil & gas, and other industrial applications. For Shadowbriar, the acquisition represents an exciting opportunity to leverage the growth model it has successfully implemented at its other value- added metal processing portfolio company businesses. With 35 years of demonstrated leadership experience in the carbon and alloy steel tube industry, George Thompson has joined Crossroads Seamless USA as the company’s President.

“Crossroads Seamless USA brings an excellent array of hot finished, cold drawn, and tube finishing capabilities and a workforce that is truly exceptional,” said George Thompson. “We are very excited to expand the company’s production volumes and processing capabilities to increase the value we bring to customers.”

“Crossroads Seamless USA intends to become a leading domestic producer of carbon steel seamless tubing from the company’s excellent manufacturing facility in Indiana,” said Matt Homme, Managing Partner of Shadowbriar Capital Partners. “We are confident that George Thompson’s strong industry relationships and commercial background will drive significant growth in the years to come working collaboratively with the company’s outstanding workforce and leadership team.”

The sale of Winamac follows Plymouth’s announced closure of its West Monroe, LA site earlier in July 2024 and enables Plymouth to focus on its product leadership strategy targeting core aerospace, defense, medical tubing, nuclear tubing, and fluid power markets. Plymouth emerges in a strengthened position to increase the differentiated value it brings to customers.

“Plymouth is grateful to the Winamac employees who have delivered substantial value for customers and for Plymouth since 1962,” said Paul Lemke, Plymouth’s Board Chair. “We are excited for its future with Shadowbriar and eager to embark on Plymouth’s second century with a sharpened focus on extending our product leadership for highly demanding specialty markets.”

Stout Capital served as financial advisor to Plymouth on the transaction. Kilpatrick Townsend & Stockton provided legal counsel to the sellers, and McDonald Hopkins provided legal counsel to the buyer.

About Crossroads Seamless USA

Crossroads Seamless USA is a domestic producer of carbon and alloy seamless tubing located in Winamac, Indiana. With over six decades of operating history in the Midwestern United States through its predecessor entities, Crossroads Seamless USA demonstrates excellent manufacturing capabilities, customer service, and commitment to quality. The company services a diverse North American customer base across end markets that include construction, drilling, utilities, military, oil & gas, and other industrial applications. For more information on Crossroads Seamless USA, please visit www.Xseamless.com.

About Shadowbriar Capital Partners

Shadowbriar is a Los Angeles based private equity firm that seeks to make control investments in leading lower middle-market industrial businesses that demonstrate strong potential. Shadowbriar looks to partner with outstanding management teams on a long-term basis to drive significant growth, both organically and through post-closing add-on acquisitions. Additional portfolio companies include VORTEQ Coil Finishers, LLC and Flextrude Aluminum Shapes, LLC. For more information on Shadowbriar, please visit www.shadowbriar.com.

About Plymouth Tube Co.

Plymouth Tube Company is a global specialty manufacturer of stainless, nickel alloy, and carbon alloy precision steel tubing. Plymouth Engineered Shapes manufactures titanium, stainless, nickel alloy, carbon & alloy semi- finished extrusions and semi-finished shaped bar. Under five continuous generations of family ownership, Warrenville, IL-headquartered Plymouth Tube celebrates its 100th Anniversary in 2024. For more information on Plymouth Tube Company, please visit www.plymouth.com.

Please direct Plymouth Tube inquiries to Holly Both at (630) 791-2759 (hboth@plymouth.com) and Shadowbriar/Crossroads Seamless USA inquiries to George Thompson at gthompson@Xseamless.com.

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PLYMOUTH TUBE CO. ANNOUNCES APPOINTMENT OF KEVIN THIENEMAN TO BOARD OF DIRECTORS

WARRENVILLE, IL (October 15, 2025) – Plymouth Tube Company is pleased to announce the appointment of Kevin Thieneman to its Board of Directors.

Kevin brings over three decades of global industrial and leadership experience to Plymouth’s Board. He currently serves on the Board of Directors for Silver Spruce Resources, Inc., Calder Consulting, and Cornwell Capital, a family office based in Charlotte, North Carolina.

Kevin spent 24 years at Caterpillar Inc., where he held a variety of senior leadership positions spanning product management, operations, and general management. His career at Caterpillar included international assignments in Beijing, Hong Kong, and Singapore, providing him with a deep understanding of global markets and cross-cultural business dynamics.

Following his time at Caterpillar, Kevin served five years at LiuGong, a leading construction equipment manufacturer in China. As an officer of the company, he was responsible for aftermarket parts, mobile cranes, mobile elevating work platforms, global strategy, and mergers & acquisitions.

In addition to his corporate leadership, Kevin has been an active contributor to business and community organizations. He has served on the Boards of the Georgia Association of Manufacturers, West Georgia Technical College, the Singapore American Chamber of Commerce, and the U.S.-ASEAN Business Council. As a member of the APEC Business Advisory Council, he championed initiatives focused on infrastructure development as a driver of economic growth.

Kevin holds a Juris Doctor (with honors) from Duke University and a Bachelor of Science in Business from Indiana University. He was admitted to the Illinois State Bar and earned certification as a Certified Public Accountant in the State of Illinois.

“We are honored to welcome Kevin to Plymouth’s Board of Directors,” said Van Van Pelt, Executive Chairman, President & CEO of Plymouth. “Kevin’s extensive leadership experience across global manufacturing and industrial operations will be instrumental as we continue to advance Plymouth’s legacy of manufacturing excellence.”

Please contact Holly Both, VP Sales & Marketing, with any questions at 630-841-2911.

About Plymouth Tube Co.

Celebrating its 100th anniversary in 2024, Plymouth Tube Company is a privately-held, family-owned, precision metals manufacturer. Products include tubing, extruded shapes and cold drawn shapes spanning specialty carbon, alloy, stainless steel, nickel alloy and titanium. Headquartered in Warrenville, Illinois with five plants in the United States and Plymouth Schwerter Technik in Germany, Plymouth is known for offering industry-leading service levels and unique technical innovations.

PLYMOUTH APPOINTS D.C. “VAN” VAN PELT, JR. AS PRESIDENT AND CEO

WARRENVILLE, IL (September 02, 2025) – Plymouth appoints D.C. “Van” Van Pelt, JR. as President and CEO.

WARRENVILLE, IL (September 2, 2025) – Plymouth Tube Company has appointed D.C. “Van” Van Pelt, Jr. as its President and Chief Executive Officer, effective immediately. Van Pelt will also continue in his role as Executive Chairman of the Board. 

Van Pelt brings decades of leadership experience to the position, having previously served as Plymouth’s President and CEO from 1996 to 2014, and again as interim CEO in 2017. His return marks a pivotal moment for the company as it strengthens its focus on operational performance and long-term growth. 

“Our goal is clear—achieving world-class operational performance,” said Van Pelt. “We are committed to delivering every customer order on-time and with uncompromising quality. These fundamentals will not only strengthen our financial foundation but also allow us to reinvest in the projects that fuel stability and growth for the future.” 

Plymouth also recognized the contributions of outgoing President and CEO, John Petreanu, who led the company over the past year. Petreanu will support the leadership transition through mid-September. 

“On behalf of the Board and the entire Plymouth team, I want to thank John for his dedication and leadership during a critical time for the company,” Van Pelt added. 

With renewed leadership and a sharpened focus on execution, Plymouth is positioning itself to deliver exceptional results for its customers, employees, and stakeholders.

Please contact Holly Both, Vice President of Sales & Marketing, Plymouth Tube Company, with any questions at 630-791-2759.

About Plymouth Tube Company 

Plymouth Tube Company, founded in 1924, is a privately held, family-owned manufacturer of precision metal products. Headquartered in Warrenville, Illinois, Plymouth operates five manufacturing facilities in the United States and Plymouth Schwerter Technik in Germany. Its product portfolio includes tubing, extruded shapes, and cold-drawn shapes in carbon, alloy, stainless steel, nickel alloy, and titanium. Plymouth is recognized for its technical expertise, product quality, and commitment to customer service.

PLYMOUTH® TO EXHIBIT AT PARIS AIR SHOW 2025

WARRENVILLE, IL (June 5, 2025) – Plymouth®, a leading global manufacturer of specialty tubing and extruded shapes for critical industries, is proud to announce its participation in the International Paris Air Show from June 16-22, 2025. Plymouth® will be showcasing its advanced solutions for the aerospace and defense industries at Hall 3, Stand F186.

As a long-standing partner to the aerospace and defense sectors, Plymouth® is committed to providing high-performance, precision-engineered products that meet the rigorous demands of aircraft manufacturing and defense applications. At this year’s show, attendees can learn more about its diverse range of products from its entities:

Plymouth Tube Company: Offers a full range of Stainless Steel & Nickel Alloy precision aerospace tubing to seamless and welded & drawn specifications.

Plymouth Engineered Shapes: Manufactures cost-saving extrusion profiles in Titanium, Stainless Steel and Nickel Alloys.

Plymouth Schwerter Technik: Produces component solutions ranging from compounded materials for ballistic grilles on tanks to a range of semi-finished and finished parts utilizing special profile extrusions.

“We are thrilled to return to the Paris Air Show, a premier event for connecting with our customers and showcasing our latest innovations across the Plymouth® family of companies,” said Holly Both, Vice President of Sales and Marketing at Plymouth®. “The aerospace and defense industries continue to evolve at a rapid pace, and we are dedicated to supporting their advancements with our cutting-edge solutions and unwavering commitment to quality and service. We look forward to engaging with industry leaders and demonstrating how Plymouth® can contribute to the future of flight and defense.”

Representatives from Plymouth® will be available at their stand to discuss specific project needs, provide technical insights, and explore potential partnerships. To schedule a meeting with Plymouth® during the show, reach out directly or email aero@plymouth.com.

About Plymouth Tube Co.

Plymouth Tube Company is a global specialty manufacturer of stainless, nickel alloy, and carbon alloy precision steel tubing. Plymouth Engineered Shapes manufactures titanium, stainless, nickel alloy, carbon & alloy semi- finished extrusions and semi-finished shaped bar. Under five continuous generations of family ownership, Warrenville, IL-headquartered Plymouth Tube celebrated its 100th Anniversary in 2024. 

For media inquiries, contact Holly Both, VP Sales & Marketing, 630-791-2759