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EnPro Industries Announces Deal to Acquire the Stock of ATDynamics, Inc.

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EnPro Industries, Inc. (NYSE:NPO) , a leading manufacturer of engineered industrial products, today announced its acquisition of ATDynamics, Inc., a privately-held company offering innovative aerodynamic products to the commercial trucking Industry. ATDynamics will become part of EnPro’s Stemco division, a leading supplier of high performance wheel-end, brake, suspension, and tire pressure management products to the commercial vehicle market. Terms were not disclosed.

ATDynamics, headquartered in Hayward, CA, is the leading designer and manufacturer of a suite of clean technology products engineered to reduce fuel consumption in the global freight transportation industry. The addition of ATDynamics’ suite of products and intellectual property strengthens the Stemco product portfolio. The company also brings a talented, innovative workforce of 60 employees, and an entrepreneurial culture that will further enhance EnPro’s focus on innovation.

“The addition of ATDynamics aligns with our strategic direction to assist our fleet customers in improving fuel efficiency and increasing tire life. It continues to build a solid platform from which we can offer a more complete line of aerodynamic products,” said Todd Anderson, president of STEMCO. “The patented, award-winning TrailerTail(R) technology can improve a trailer’s fuel efficiency by over 5% without hindering cargo capacity, loading or unloading,” he added.

Andrew Smith, Founder and CEO of ATDynamics commented, “ATDynamics was founded with the mission to change the shape of the modern semi-trailer. We are thrilled that TrailerTail(R) technology is now standard equipment for the most fuel efficient trucking fleets in North America, with tens of thousands of TrailerTails(R) circulating billions of miles annually. The transaction with Stemco, and the combined capabilities of the two companies, marks the next chapter in the re-invention of the semi-trailer.”

Commenting on the transaction, Steve Macadam, president and chief executive officer of EnPro Industries said “ATDynamics’ flagship product, the TrailerTail(R), is a tremendously exciting and innovative development for the trucking industry, and it’s really just starting to gain market adoption. The company fits nicely into Stemco’s strategic growth plan.”

About EnPro Industries

EnPro Industries, Inc. is a leader in sealing products, metal polymer and filament wound bearings, components and service for reciprocating compressors, diesel and dual-fuel engines and other engineered products for use in critical applications by industries worldwide. For more information about EnPro, visit the company’s website at

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