ESCO Group is made up of three business units: ESCO Automation, ESCO Electric, and ESCO Power — provides plant automation, electrical construction, electrical design, and electrical safety training for a wide variety of clients. We are a mid-sized company with over 400 associates that are dedicated to offering our clients the best services in order to achieve their goals. Standing Strong Over the past 55+ years, building long-term, mutually-beneficial relationships with clients has been a contributing factor to our success. Our relationships are built on trust that has been established by following through and holding true to our word. We consider our clients as our partners in business, and we approach our work knowing that their success is our success.

CECO Environmental is a leading environmentally focused, diversified industrial company whose solutions protect people, the environment, and industrial equipment across the globe, serving a broad landscape of industrial air, industrial water and energy transition markets. In regions around the world, CECO works to improve air quality, optimize the energy value chain and provide custom engineered solutions for applications including oil and gas, power generation, water and wastewater, battery production, poly silicon fabrication, chemical and petrochemical processing along with a range of others. CECO is listed on Nasdaq under the ticker symbol “CECO”. For more information, please visit www.cecoenviro.com.

Structural and Steel Products, Inc. headquartered in Fort Worth, Texas, manufactures and distributes products used in the transportation and power construction end-markets, including overhead sign structures, guardrail, crash cushions, high mast lighting, traffic signal poles and engineered tubular structures used in the communication and power transmission industries. Our customers are primarily located in the Sun Belt region of the United States.

Signal Metal Industries provides heavy steel plate fabrication and machining services to metal processors, heavy industry, power generation companies and many other industries.

P & W QUALITY MACHINE, INC is an electrical/electronic manufacturing company based out of 707 S HWY 67, Cedar Hill, Texas, United States.

Venture Metals, LLC procures, processes and sells ferrous, nonferrous and alloy metals for recycling and remelting purposes. The company also processes non-metal recyclable byproducts of manufacturing and industry. Founded in 1986, Venture is a leading provider of industrial recycling solutions, with a focus on Environmental, Social, and Governance (ESG) business practices and a corporate culture centered around environmental stewardship. The company offers tailored, turnkey solutions to collect, remove, sort, process, reclaim and sell recycled materials generated as by-products of manufacturing and production. Building relationships on transparency and trust, Venture is recognized for its high standards of safety, sustainability and quality. The company is based in Dallas, TX, with additional offices and processing facilities in Des Plaines, IL, Houston, TX, Wills Point, TX and Lonoke, AR as well as Seoul and Gunsan, South Korea. Venture is a portfolio company of Mill Rock Capital. For more information, please visit venturemet.com.

Established in 1967, American Steel & Aluminum is an AISC certified Structural Fabricator located in Grand Prairie, TX with 150,000 sq. ft. of fabrication area. We fabricate structural, miscellaneous and ornamental metal products in steel, stainless steel, and aluminum. Fabrication capabilities include CNC beam, angle, and pipe processing as well as rolling, laser cutting, and welding. Customers rely on us to provide them with a single source for all of their steel and aluminum processing needs on major commercial construction projects. In addition to fabrication, we offer painted, galvanized, and powder coated finishes to customer specifications.

Texas Aluminum is a mining & metals company based out of 111 Industrial Blvd, Mansfield, Texas, United States.

J&L SHEETMETAL CO., INC. is a company based out of 1101 REINERMAN STREET, HOUSTON, Texas, United States.

RSR Corporation is a privately held secondary lead smelting company that operates lead acid battery recycling facilities in California, Indiana, and New York. RSR uses state of the art technology and a highly trained workforce to ensure the lead acid batteries we recycle into refined lead do not harm the environment, employees, or the communities in which we work. The reclamation of junk scrap batteries is a true environmental success story. According to Battery Council International, 97 percent of all battery lead is recycled and a typical new lead-acid battery contains 60 to 80 percent recycled lead and plastic. RSR is proud to be part of this industry and to be at the forefront of efforts to make the industry even more environmentally conscious.

Our focus is to be recognized as the premier metal building erector nationwide. Pro Steel hires only the best employees. Giving them job training and annual OSHA training to ensure these employees are committed to deliver high quality work and efficient metal building erection services in a safe manner. Team work, a strong work ethic, and a repeat customer interest, are just a few of the standards we continuously strive to achieve. With Pro Steel erecting 186 buildings in 2006, we continue working to improve our skills and knowledge of the steel/metal building industry. With building and insulation companies always improving their products and upgrading building codes, we do what is necessary to lead the industry by requiring OSHA and regular on the job training. With this training and our effort to provide the best value to you, our costumers, we grew 23% in 2007 doing over 200 buildings

Since 1951, Midland has been dedicated to supplying the most reliable valves and level-measurement devices for the railroad market. With an innovative approach to engineering simple designs that meet the most demanding needs, Midland continuously leads the way in shaping the technological evolution of railroad tank car transportation equipment that’s safe, reliable and easy to use and maintain. Five decades of real-world experience have resulted in a manufacturing company that anticipates the industry’s needs and delivers superior products that help protect workers and the environment. This is Midland’s legacy of quality. It starts with intuitive product development that answers the needs of the market without compromise, and continues through Midland’s innovative engineering design process. Precision lean manufacturing, using only the highest quality materials, is employed in a flexible, world-class production environment, assuring on-time delivery of your product. Midland’s rigid quality control standards, utilizing statistical process control, promise reliable product performance. Every valve and level measurement device is thoroughly tested. After testing, critical components are serialized prior to shipping, making them easily traceable for life. Thanks to Midland’s focus on quality and safety, our products meet (and typically exceed) Association of American Railroad (AAR) regulations. Midland is ISO 9001:2008 certified and an AAR Category F registered facility.