Mr. Larson has deep investment expertise and broad understanding of the capital markets, business cycles and capital efficiency, and allocation practices. As a professional investor and as the chief investment officer of Ecolab s largest stockholder, Mr. Larson provides the Board with a long-term stockholder perspective and more than three decades of investment acumen. Together with his years of service as a public company board member, Mr. Larson s experience as a long-term investor in several multi-national industrial companies has given him deep corporate governance expertise and a well-informed view on the unique strategic issues faced by companies such as Ecolab. His background offers the Board important insights into capital allocation, Ecolab s financial risks and opportunities, and the financial issues facing large industrial corporations. Throughout his career, Mr. Larson has gained extensive experience related to advancing corporate sustainability and employee safety initiatives. Career Highlights Cascade Investment, L.L.C. , the investment office for William H. Gates III, and the Gates Foundation Trust Chief Investment Officer, responsible for Mr. Gates non-Microsoft investments, as well as the investment assets of the Gates Foundation Trust (1994-present) Education BA, Economics, Claremont McKenna College MBA, University of Chicago Other Directorships Current Fomento Econ mico Mexicano, S.A.B. de C.V. (2011-present) Republic Services, Inc. (2009-present) Member and Trustee of several Western Asset Management closed-end and mutual funds (2004-present) Other Directorships Past 5 Years None Key Skills Industry experience Accounting / financial expertise Human capital management Public company corporate governance M&A