Joachim Limberg, Chairman, ThyssenKrupp Materials

Joachim Limberg

Chairman, thyssenkrupp Materials

Joachim Limberg began his career in 1976 at Klöckner Werke after receiving his degree in Economics. He then spent several years as managing director/CEO of various small and medium-size enterprises. In 1995 Mr. Limberg joined the Thyssen Group, initially as head of the Product Management Steel and Materials Management departments of Thyssen Schulte. In 1998 he was appointed to the Executive board. From 2002 to 2005 he was Chairman of the Executive Board of the company, by then renamed ThyssenKrupp Schulte GmbH.

Joachim Limberg was appointed to the Executive Board of ThyssenKrupp Materials AG, later ThyssenKrupp Services AG, on April 1, 2001. From January 2002 he was additionally responsible for the North American operations of ThyssenKrupp Materials N.A., of which he is President and CEO. With the establishment of ThyssenKrupp Materials Europe GmbH on June 1, 2005, he took over as Chairman of the company's Executive Board and continued in this position after the company was renamed ThyssenKrupp Materials International GmbH.

From October 2006 to September 2009 he was Vice Chairman of the Executive Board of ThyssenKrupp Services AG, where he was primarily responsible for strategic corporate development. One particular focus was on developing activities in North America, Eastern Europe and South America as well as establishing the service business as a core activity. This included Asian business for which he was responsible for some time directly from Hong Kong. Effective October 1, 2009 Mr. Limberg was appointed Chairman of the Materials Services Business Area management team of ThyssenKrupp AG and Chairman of the ThyssenKrupp Materials International GmbH Executive Board.

Christian Dohr, Chief Executive Officer, ThyssenKrupp Materials

Christian Dohr

President & CEO

Starting his ThyssenKrupp career in 1991, Mr. Dohr held positions within ThyssenKrupp Steel Europe in sales and project management before moving to ThyssenKrupp Tailored Blanks in 1996 as the Senior Sales Manager. In 2002, Christian was promoted to Chief Executive Sales and grew business through new customer contracts and expanding existing relationships. Throughout his time, company sales grew from EUR60m annually to EUR600m and the production network expanded from one location to thirteen in seven different countries.

In 2009, Mr. Dohr was appointed President and CEO of TWB Company, located in Monroe, Michigan.

Mr. Dohr comes to ThyssenKrupp Materials NA from ThyssenKrupp Steel USA (Alabama, USA), where he was the President and CEO since 2012. During his time at ThyssenKrupp Steel USA, he led the company through a complete transformation, returning the company to positive EBITDA within 24 months.

Christian is a graduate of the University of Stuttgart with a Mechanical Engineering degree in production engineering and optical measurement technology.

Norbert Goertz, Executive Vice President and Chief Executive Officer

Norbert Goertz

Executive Vice President & Chief Financial Officer

Mr. Goertz joined Thyssen Handelsunion AG (today ThyssenKrupp Services AG) in 1995 from KPMG Deutsche Treuhand-Gesellschaft AG in Düsseldorf, Germany, where he specialized in mergers and acquisitions. At Thyssen Handelsunion, he oversaw the Mergers and Acquisitions department. In 1997 he was transferred to Thyssen Inc., NA in Detroit, (presently ThyssenKrupp Materials NA, Inc.), where he served as Vice President of Corporate Controlling and Development.

In 2001 Mr. Goertz was appointed Executive Vice President and Chief Financial Officer of ThyssenKrupp Materials NA, Inc. Mr. Goertz has overall responsibility for financial planning and corporate development, and has been instrumental in completing a series of successful acquisitions by ThyssenKrupp Materials North America.


Christiane Stuart

President, thyssenkrupp Materials Trading NA

Mrs. Stuart joined the US trading team in 1992, shortly after moving from her hometown of Schleswig, Germany to Houston, Texas. Over the span of 25 years, she has been involved in all aspects of the trading business, from basic administrative tasks at the beginning of her career to complex commercial transactions. She has developed a deep understanding of all aspects of the business and her background has allowed her to have a positive impact on the group’s performance both operationally and commercially. Her success is rooted in understanding and supporting her customers’ needs and supplier’s aspirations and working collaboratively to support their success in the North American market.


In 2016, Stuart was appointed to her current position as President of thyssenkrupp Materials Trading NA with expanded responsibility for all carbon steel trading activities in North America.

Brian Diephuis, President, ThyssenKrupp Industrial Services NA

Brian Diephuis

President, thyssenkrupp Industrial Services NA

Mr. Diephuis began his career in 1985 with Copper and Brass Sales, gaining experience as he was promoted through a series of positions in sales, purchasing and operations.  Later, Mr. Diephuis assumed leadership positions involving distribution, processing, fabricating, logistics, marketing and procurement over a 23-year span.  In 2008, Mr. Diephuis was promoted to the position of President of ThyssenKrupp Industrial Services NA where he continues his career in growing the TKMNA Industrial Services Division to new successes across North America.

Ed Kurasz, President and CEO, Copper and Brass Sales 164

Ed Kurasz

President & CEO, Copper and Brass Sales

Mr. Kurasz joined ThyssenKrupp Materials NA in July 2015, moving into the role of President & CEO of Copper and Brass Sales effective October 1. Prior to joining TKMNA, Kurasz held the position as Vice President and General Manager for Allied Tube & Conduit, and managed four business units for Atkore. He previously served as Executive Vice President – Sales for Allied; President of the Pipe, Tube and Conduit Group; Vice President of Sales and Mechanical Division; Director of Sales for Newman Monmore Tubes, a division Tyco in the United Kingdom; and various sales and marketing positions in the Mechanical and Standard Pipe divisions.



Jeff Luckasavage, President, ThyssenKrupp Aerospace North America

Jeff Luckasavage

President, thyssenkrupp Aerospace North America

Mr. Luckasavage joined Copper and Brass Sales in 1990 as Operations Manager in Los Angeles.

In early 1997, Copper and Brass Sales was acquired by ThyssenKrupp AG. Later that year, Jeff was promoted to Region Manager, Pacific Northwest for Copper and Brass Sales. As Region Manager, he was a member of the team that successfully bid on the ground breaking Boeing Commercial Airplanes Group service provider contract. TMX Aerospace was then formed to manage this business.

Jeff relocated to Seattle in 1999 as Director, Sales and Marketing for TMX Aerospace to assist in the management and rapid growth of the division. Later, in 2005, Jeff was named Vice President, Global Supply Chain Programs with general management responsibility for the Boeing Commercial Airplane Raw Material Supply Chain Strategy.

In June of 2011, Jeff was promoted to his current position as President, ThyssenKrupp Aerospace North America.

Jeff received his Bachelor of Science degree in Finance from the University of Florida and his MBA from San Francisco State University.


Greg Raece

President, Online Metals

Mr. Raece was appointed president of in November 2016 and is responsible for shaping the strategy of the online business and to continue delivering a best-in-class experience for their customers. Most recently, Raece served as the Director of Digital Marketing for Microsoft Dynamics CRM and ERP products as well as cloud computing. He also brings experience in branding, online strategy and e-commerce initiatives from companies like, Seattle’s Best Coffee and

Mr. Raece earned his MBA from the University of Washington and his Bachelor’s degree from the University of Illinois at Urbana-Champaign. He lives in Seattle with his family and works out of the Seattle office.

John Shepherd, President, AIN Plastics Division

John Shepherd

President, thyssenkrupp Engineered Plastics

Mr. Shepherd joined ThyssenKrupp Materials NA in 2001 in the position of Regional Manager for AIN Plastics and later assumed the responsibilities of Director of Business Development and Director of Sales.  Promoted to President of AIN Plastics in 2005, John has responsibility for the day-to-day operations of the AIN Plastics including the development and execution of growth strategies for plastic shape products in the US. Mr. Shepherd has over 25 years of industrial plastic shape industry experience and is a graduate of The University of Toledo.

AIN Plastics was renamed thyssenkrupp Engineered Plastics on September 12, 2016.

Thorsten Soerje, President, ThyssenKrupp Metallurgical Products USA

Thorsten Soerje

President, thyssenkrupp Raw Materials USA

With a solid background in finance and banking, Mr. Soerje joined ThyssenKrupp Metallurgical Products GmbH in 2011 as a Senior Trader for Raw Materials. For the past three years, he traded mainly in London Metal Exchange (LME) deliverable grades for the major base metal markets, including copper and nickel.

In July 2014, Thorsten was appointed President of the ThyssenKrupp Metallurgical Products USA group and oversees the operations of the offices in New York, Atlanta and Canada. In 2016, the business was renamed thyssenkrupp Raw Materials USA.

Mr. Soerje received an MBA in economic sciences from the Bergische Universitat Wuppertal and also studied economic sciences at the University of New South Wales in Australia.

Olaf Voss, President, ThyssenKrupp Materials de Mexico S.A. de C.V.

Olaf Voss

President, thyssenkrupp Materials de Mexico S.A. de C.V.

Mr. Voss started his career with ThyssenKrupp Stahl AG in 2000 as a research engineer located in Germany. Multiple promotions within the thyssenkrupp family of companies have moved Mr. Voss to the United States as the Executive Vice President at TWB Company, LLC from 2008 to 2012 and to Mexico in a variety of management roles, ranging from sales, marketing and operations.

In May 2013, Mr. Voss was appointed President of thyssenkrupp Materials de Mexico S.A. de C.V., the role he currently holds.

Timothy Yost, President, Ken-Mac Metals and ThyssenKrupp Steel Services

Timothy Yost

President, Ken-Mac Metals & thyssenkrupp Steel Services

Mr. Yost was appointed to his current position in October 2011, responsible for the overall growth and profits of the Ken-Mac Metals and thyssenkrupp Steel Services Divisions and the positioning of the companies for continued market share enhancement and expansion of Return on Capital Employed.

Mr. Yost started his career with ThyssenKrupp in 1986 and has held numerous positions including Executive Vice President and COO of Ken-Mac Metals and ThyssenKrupp Steel Services, Vice President of ThyssenKrupp Automotive Group and several other key management positions including International assignments in South America and Mexico. Prior to joining thyssenkrupp Materials NA, Inc., Mr. Yost worked at Republic and LTV Steel Corporation holding several management roles in Finance, Operations, and Sales/ Marketing.

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