Management Team


Kim Ann Mink, Ph.D. is Chairman, Chief Executive Officer and President of Innophos. Prior to joining Innophos in 2015, Dr. Mink served as Business President of Elastomers, Electrical and Telecommunications at The Dow Chemical Company from September 2012 to December 2015. Dr. Mink joined Dow in April 2009 as Global General Manager, Performance Materials and President/CEO ANGUS Chemical Co. (then a fully owned subsidiary of Dow Chemical). Prior to joining Dow, Dr. Mink was Corporate VP and Global General Manager, Ion Exchange Resins at the Rohm and Haas Company (now a fully owned subsidiary of Dow), where she spent more than 20 years serving in numerous senior roles with increasing responsibilities. Since March 2017, Dr. Mink serves as an independent director on the Board of PolyOne, a leading global provider of specialized polymer materials, services and solutions, and is also a member of the Environmental, Health and Safety Committee. From September 2012 to December 2015, Dr. Mink served as a member of the Board of Advisors of Catalyst Inc., a nonprofit organization with a mission to accelerate progress for women through workplace inclusion. From November 2012 to December 2016, she served as a member of the National Board of Trustees of the ALS Association. In addition, in 2014, Dr. Mink was named to STEMconnector's 100 Diverse Corporate Leaders in STEM. Dr. Mink received her B.A. in Chemistry from Hamilton College and a Ph.D. in Analytical Chemistry from Duke University. She is a graduate of the Wharton School of Business Management Program.

Han Kieftenbeld is Senior Vice President & Chief Financial Officer of Innophos. He previously served in broad chief financial officer roles and as chief procurement officer in Fortune 500, FTSE 100 and smaller enterprises across a variety of industries and geographies in which he held global P&L accountability and post-merger responsibilities. Prior to joining Innophos in 2016, Mr. Kieftenbeld served as Global Chief Financial Officer at U.K.-based AB Mauri where he globally led Finance, IT, Procurement, Supply Chain and Strategic Projects. Prior to AB Mauri, Mr. Kieftenbeld held the position of Global Chief Procurement Officer at global ingredients solutions company Ingredion Incorporated, where he led the creation and delivery of the post-merger global procurement roadmap. Before that, Mr. Kieftenbeld gained experience as a Chief Financial Officer at Akzonobel N.V. and held roles of increasing reach and impact in international business management, finance, IT, procurement, and supply chain at ICI PLC and Unilever N.V. Mr. Kieftenbeld serves as a non-executive advisor and board member at Themis Analytics, an international sales and marketing decision analytics solutions provider to the pharmaceutical industry. Mr. Kieftenbeld earned his undergraduate degree in Business Economics and Accounting from Windesheim University in the Netherlands and he holds an M.B.A. from New York University Stern School of Business, London School of Economics and Political Science, as well as HEC School of Management, Paris.


Charles Brodheim is Vice President, Corporate Controller and Information Technology of Innophos. Mr. Brodheim joined Rhodia in 1988 and held various tax, accounting and business analyst positions within Rhodia. Mr. Brodheim was the North American Finance Director for Specialty Phosphates from 2000-2002. After 2002, Mr. Brodheim was a Finance Director for various Rhodia North American Enterprises, including its Eco-Services enterprise. Mr. Brodheim earned a B.B.A. degree in Finance/Accounting from Temple University and is a certified public accountant.

Sherry Duff is Senior Vice President, Chief Marketing and Technology Officer of Innophos, having responsibility for Innophos' marketing and technology organizations as well as strategic business development. Ms. Duff has more than 25 years of experience in the specialty chemicals industry and a track record of growing and integrating businesses. Prior to joining Innophos, Ms. Duff served as President and Managing Director of Arista Laboratories, Inc., a U.S. subsidiary of Molins, PLC. While at Arista, she led all aspects of the business with full P&L responsibility, and initiated significant cultural organizational changes to drive improved performance and growth based on customer-driven strategic plans and value propositions across new markets and regions. Before Arista, Ms. Duff spent over 20 years with Arch Chemicals, Inc., where she began her career as a development chemist in process technology. As she progressed in her career at Arch Chemicals, she took on roles of increased responsibility and held a variety of global leadership roles, including business development, strategic planning, general management, research & development and marketing. Ms. Duff holds a bachelor's degree in Chemistry from University of Connecticut and earned an MBA degree from Rensselaer Polytechnic Institute.

Amy Hartzell is Senior Vice President, Supply Chain and Purchasing of Innophos. Prior to joining Innophos in 2016, Ms. Hartzell spent 19 years in progressive leadership, supply chain and integration roles at Rohm and Haas Company (now a fully owned subsidiary of The Dow Chemical Company). She began her career at Rohm and Haas as a process engineer and progressed to leadership roles within the supply chain team, including Global Planning Manager in Biocides and Ion Exchange Resins and Regional Emulsion Planning Manager in Coatings. Through these roles, she gained experience developing and implementing supply chain improvement programs and processes on a global scale. Following the acquisition of Rohm and Haas by Dow Chemical Company, Ms. Hartzell was named the Global Business Supply Chain Director, Performance Materials, where she was responsible for 10 businesses, including the integration of Rohm and Haas and Dow business units. From 2012 to 2014, Ms. Hartzell served as the Global Business Supply Chain Director, Elastomers, Electrical and Telecommunications. In her final position at Dow Chemical, Ms. Hartzell led an organizational design transformation of its Center of Excellence where she was responsible for implementing best practices across the Supply Chain function and for identifying innovative capabilities in dynamic network design, analytics, and end to end supply chain visibility. Ms. Hartzell earned a B.S. in Chemical Engineering from Lehigh University and an M.B.A. from LaSalle University.

Joshua Horenstein is the Senior Vice President, Chief Legal Officer and Corporate Secretary of Innophos. Prior to his current position, Mr. Horenstein worked in roles of increasing responsibility at Innophos, including Mergers & Acquisitions Counsel; Assistant General Counsel; Deputy General Counsel and General Counsel - Specialty Ingredients & Nutrition. Prior to joining Innophos, Mr. Horenstein practiced law at several leading law firms, including Ballard Spahr, LLP; Pepper Hamilton, LLP; and Flaster/Greenberg P.C. and was also Vice President and Chief Legal Officer at Rock Your Phone, Inc., a technology start-up company. Mr. Horenstein received his law degree from the University of Pennsylvania Law School and he holds bachelor degrees in economics and political science from Penn State University.

Mark Santangelo is Senior Vice President, Manufacturing, Engineering, and EH&S for Innophos. Mr. Santangelo has more than 30 years of international operations, manufacturing and technology experience in the specialty chemicals industries and has led manufacturing processes and operations for food, health and nutrition related products, including with regulated manufacturing processes. Prior to joining Innophos in 2017, Mr. Santangelo held the position of Vice President, Global Operations and Supply Chain at Arizona Chemical Company, a $1 billion international specialty chemical company. At Arizona Chemical, he successfully elevated the supply chain organization to higher levels and improved manufacturing capabilities and efficiencies for profitable growth. Prior to Arizona Chemicals, Mr. Santangelo spent more than 30 years at Ashland Inc., which was an $8 billion international specialty chemical company. At Ashland he grew through the ranks in manufacturing and broad technical operations. His final position at Ashland was as Vice President Global Supply Chain. Further, he successfully led the Supply Chain due diligence and integration processes for several acquisitions, including Hercules, Inc. and International Specialty Products (ISP), as well as the Ashland Water Technology divestiture. Mr. Santangelo holds both bachelor's and master's degrees in Chemical Engineering from Villanova University.

Sally Wilson is Vice President, Project Management Officer for Innophos. She has responsibility for overseeing Innophos' Integration Management Office (IMO) and other critical and complex cross-functional projects, as well as ensuring the development of standards around project management. Ms. Wilson joined Innophos in October 2014 as Vice President, Business Analysis and Integration. In 2017, she added the Business Management function to her responsibilities. Prior to joining Innophos, Ms. Wilson worked for Avantor Performance Materials, Inc., serving in various roles since August 2011 until becoming Executive Vice President for Operations. Previous to that, Ms. Wilson was employed by Rohm and Haas for over 20 years from 1990 in a variety of roles, most recently as European Regional Controller. Upon the acquisition of Rohm and Haas Company by Dow Chemical in 2009, Ms. Wilson took a position at corporate headquarters in Midland, Michigan heading up the financial shared service functions. Ms. Wilson earned a BA in Business Studies from Teeside Polytechnic in Middlesbrough, England and is an Associate of the Chartered Institute of Management Accountants.