The Aluminum Transportation Group is led by industry-leading aluminum experts who are working collaboratively across the value chain to develop innovative and sustainable aluminum mobility solutions. Meet the ATG’s committee leadership.

As president and CEO of the Aluminum Association, Charles “Chuck” Johnson serves as the chief advocate for the full aluminum value chain in the United States, which supports hundreds of thousands of American workers. The association’s 120+ members make 70 percent of the aluminum and aluminum products shipped in North America.

Craig Lewis is a 20+ year industry veteran currently serving as vice chair of the Aluminum Association’s Aluminum Transportation Group. As Constellium’s vice president, strategic transformation, Craig is responsible for the development, manufacturing, and recycling of aluminum products and solutions. He formerly served as senior director of automotive sales for North America, and as the director of strategy for the packaging and automotive rolled products business unit. Prior to joining Constellium, Craig held positions in strategy, finance, and operations at Novelis and Alcoa in North America and China. He is a graduate of the Kelley School of Business at Indiana University.

Chris Devadas is ATG technical committee co-chair, and Hydro Aluminum Metals USA’s director of technology. In his role, he ensures the implementation of automotive alloys and solutions for crash management systems, body-in-white and structural components. He also supports the rolling out of low carbon footprint products to enable the industry to meet sustainability targets. Chris also leads the technical customer support programs for Hydro Aluminum Metals. He has more than 30 years of experience in the aluminum industry, spanning Australia, Europe, North America and Asia.

Andy Ptashnik is the ATG technical committee co-chair, and technical director of Constellium North America with over 30 years of expertise in the materials and automotive industry. Throughout his career, Andy has excelled in senior managerial roles, successfully building and leading diverse teams to achieve exceptional results, including his previous positions as senior manager of field engineering at Commonwealth Rolled Products and senior manager of automotive field engineering at Aleris.