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J Kent Masters are a CEO & Director at Amec Foster Wheeler, Board Member at Prince International Corporation, and Chairman/President/CEO at Albemarle and are based in Baar, Canton of Zug, Switzerland. They have worked as CEO:Industrial & Special at BOC Group, President at BOC Process Gas Solutions, and Director:Business at Boc Gases North America. J studied at New York University and Georgia Institute of Technology.

Roy Harvey is President and Chief Executive Officer of Alcoa Corporation, a globally-competitive industry leader in bauxite, alumina, and aluminum, with 14,000 employees in 10 countries. He is also a Director of Alcoa Corporation. Roy has served as Alcoa’s Chief Executive Officer since November 2016 and took on the additional role of President in May 2017. Prior to the separation of Alcoa Inc. into two separate companies, he was Executive Vice President and President of Alcoa's Global Primary Products (GPP) business from October 2015 to November 2016. From June 2014 to October 2015, Roy was Executive Vice President, Human Resources, Environment, Health & Safety and Sustainability. As part of this role, he oversaw the Alcoa Foundation, one of the largest corporate foundations in the U.S. During his Alcoa career, Roy has held a variety of operating and financial assignments across the U.S., Europe and Latin America. He was Chief Operating Officer for GPP, where he focused on the day-to-day operations of Alcoa's mining, refining, smelting, castings and energy businesses. Prior to this role, he served as Chief Financial Officer, GPP. Earlier, he served as Director of Investor Relations, and before this role was Director of Corporate Treasury. Roy joined Alcoa in 2002 as a business analyst for GPP in Knoxville, Tennessee. While there, he worked with the global casthouse system to develop performance measurement systems and drive casthouse profitability. He later moved to Brazil as casthouse manager in the São Luis smelter and then as the plant controller. In 2007, he became plant manager for the San Ciprián smelter in Spain, and a year later he was named Director of Finance and Business Integration for GPP Europe. Before coming to Alcoa, Roy was Corporate Manager of Environmental Affairs at Greenstone Resources Ltd., a gold mining company based in Central America. Roy graduated with honors from The Wharton School of Business, University of Pennsylvania, simultaneously earning master’s degrees in International Business and Corporate Finance as a fellow of the Lauder Institute International MBA program, and holds a bachelor’s degree in Mining Engineering from Columbia University. In 2008, Roy was named to the prestigious Young Global Leaders Program of the World Economic Forum.

Lori J. Ryerkerk is the Chairman, Chief Executive Officer and President of Celanese Corporation, a Fortune 500 global chemical and specialty materials company based in Dallas, Texas. Celanese is a leader in the development and production of materials used in most major industrial and consumer applications. Ryerkerk was named as CEO, as well as a member of the board of directors, in May 2019. She was appointed Chairman in April 2020. Previously, Ryerkerk was the Executive Vice President of Global Manufacturing, the largest business in Shell Downstream Inc. She led a team of 30,000 employees and contractors at refineries and chemical sites worldwide. Ryerkerk’s expertise in the energy industry spans three-plus decades. She combines deep technical and commercial skills with a passion for the manufacturing business. Her unwavering focus on safety, environmental and social performance is the foundation on which she has overseen some of the most technically complex operations in the industry. Ryerkerk joined Shell in May 2010 as the Regional Vice President of Manufacturing in Europe and Africa, and was responsible for the operation of five Shell Manufacturing facilities and five joint ventures. During that time, she improved operational performance of all assets in the region. In October 2013, she was named Executive Vice President of Global Manufacturing, Shell Downstream Inc. Before joining Shell, she was Senior Vice President, Refining, Supply and Terminals at Hess Corporation, where she was responsible for two refineries, 21 terminals (and distribution network) and supply and trading. Prior to that, Ryerkerk spent 24 years with ExxonMobil where she started her career as a process technologist at a refinery in Baton Rouge, Louisiana. Throughout her tenure at ExxonMobil, she took on a variety of operational and senior leadership roles in Refining and Chemicals Manufacturing, Power Generation, and various other groups including Supply, Economics and Planning, HSSE, and Public Affairs/Government Relations. Those assignments took her across the globe, from the U.S. to Europe to Asia. Ryerkerk is a graduate of Iowa State University, where she completed her Chemical Engineering degree. She currently serves on the board of directors of Eaton Corporation, a leading provider of power management technologies and services; and previously she served on the board of Axalta Coating Systems, a leading provider of liquid and powder coatings. Additionally, she actively supports a variety of organizations in her hometown of Beaumont, Texas.

Leon Topalian is a Vice President at Nucor and Board Member at Nucor. He has worked as Exec VP:Beam & Plate Products at Nucor; VP/General Manager at Nucor Steel Kankakee, Inc.; and President/COO at Nucor.

Steve Angel became Chief Executive Officer of Linde plc and a member of the company’s Board of Directors in October 2018. Prior to that, Mr. Angel was Chairman, President and CEO of Praxair, Inc. since 2007. Angel joined Praxair in 2001 as an executive vice president and was named president and chief operating officer in February 2006. Prior to joining Praxair, Angel spent 22 years in a variety of management positions with General Electric. Angel serves on the board of directors of PPG Industries and the Hydrogen Council and is a member of The Business Council. A native of Winston-Salem, North Carolina, Angel received a Bachelor of Science degree in Civil Engineering from North Carolina State University and an MBA from Loyola College in Baltimore.

Mike Sommers is the 15th chief executive of the American Petroleum Institute since its founding almost a century ago. API is the largest national trade association representing all aspects of America's oil and natural gas industry. Before being named APl's president and CEO, Sommers led the American Investment Council, a trade association representing many of the nation's leading private equity and growth capital firms and other business partners. Sommers spent two decades in critical staff leadership roles in the U.S. House of Representatives and the White House, including chief of staff for Speaker of the House John A. Boehner (R-Ohio) and Special Assistant to President George W. Bush at the National Economic Council. Sommers has been instrumental in crafting landmark legislation, including leading efforts to pass the Troubled Asset Relief Program through Congress, brokering a resolution between the administration and Congress ahead of the fiscal cliff in 2013, leading efforts to pass the Bipartisan Budget Agreement of 2015 and trade promotion authority in 2015. Sommers is a native of Naperville, Illinois, and a graduate of the honors program at Miami University in Oxford, Ohio, where he was awarded the President's Distinguished Service Medal - the highest honor given to a Miami undergraduate. He is married to Jill Sommers, a former Commissioner at the Commodity Futures Trading Commission (CFTC). They have three children and live in Alexandria, Virginia.