John Warner is a Senior Partner at McKinsey & Company, where they lead the Global Energy & Materials Practice and Chemicals & Agriculture Practice. Their client efforts focus on improving performance trajectories for leading-edge companies, with expertise in corporate strategy and finance, transformation marketing and sales, operations, organization efficiency, and change management. John previously served as a Partner and Consultant at McKinsey from 1993 to 2005 and worked as a Financial Analyst at General Electric from 1989 to 1991. They are also the Chairman of the Ohio Business Roundtable and are pursuing an MBA from Harvard Business School and a BA in Economics from William & Mary.
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