Board of Directors

jean s. blackwell d

jean s. blackwell

In May 2016, Ms. Blackwell joined the board of directors of Ingevity Corporation, a leading global manufacturer of specialty chemicals and high performance carbon materials. She currently serves as the chair of Ingevity’s executive committee and as a member of its compensation committee and its nominating, governance and sustainability committee. Ms. Blackwell has served as a member of the board of directors of Johnson Controls International plc, a leading diversified technology company, since May 2018, including as a member of its compensation committee.  She previously served as a member of the board of directors from April 2004 to November 2009, and as chairperson of the audit committee, of Phoenix Companies Inc., a life insurance company. Ms. Blackwell also served as a member of the board of directors of Essendant Inc. (formerly United Stationers Inc.), a leading national wholesale distributor of business products, from 2007 to 2018, including as the chair of the governance committee  and the human resources and as member of the audit committee. From March 2008 until her retirement in March 2013, Ms. Blackwell served as Chief Executive Officer of Cummins Foundation and Executive Vice President, Corporate Responsibility, of Cummins Inc., a global power leader that designs, manufactures, distributes and services diesel and natural gas engines and engine-related component products,  and previously served as Executive Vice President and Chief Financial Officer from 2003 to 2008, Vice President, Cummins Business Services from 2001 to 2003, Vice President, Human Resources from 1998 to 2001 and Vice President and General Counsel from 1997 to 1998 of Cummins Inc. Prior to joining Cummins, Ms. Blackwell was a partner at the Indianapolis law firm of Bose McKinney & Evans LLP from 1984 to 1991, where she practiced in the area of financial and real estate transactions. She has also served in state government, including as Executive Director of the Indiana State Lottery Commission and State of Indiana Budget Director.

Member of the Celanese Nominating and Corporate Governance Committee
Member of the Celanese Audit Committee

william m. brown d

william m. brown

Mr. Brown is Executive Chair of the Board  of L3Harris Technologies, Inc., successor to Harris Corporation and a global aerospace and defense technology company.. He previously served as L3Harris’ Chair and CEO from July 2019 to June 2021. Mr. Brown joined Harris in November 2011 as President and Chief Executive Officer and was appointed Chairman in April 2014. Prior to joining Harris, Mr. Brown was Senior Vice President, Corporate Strategy and Development, of United Technologies Corporation (“UTC”). He also served five years as President of UTC’s Fire & Security Division. In total, Mr. Brown spent 14 years with UTC, holding U.S. and international roles at various divisions, including Carrier Corporation’s Asia Pacific Operations and the Carrier Transicold division. Before joining UTC in 1997, he worked for McKinsey & Company as a senior engagement manager. He began his career as a project engineer at Air Products and Chemicals, Inc. Mr. Brown serves on the board of directors of the Fire Department of NYC Foundation and the board of trustees of the Florida Institute of Technology.

Member of the Celanese Compensation and Management Development Committee
Member of the Celanese Nominating and Corporate Governance Committee

edward g. galante d

edward g. galante

Mr. Galante served as Senior Vice President and as a member of the management committee of Exxon Mobil Corporation, an international oil and gas company, from August 2001 until his retirement in 2006. Prior to that, he held various management positions of increasing responsibility during his more than 30 years with Exxon Mobil Corporation, including serving as Executive Vice President of ExxonMobil Chemical Company from 1999 to 2001. Mr. Galante currently serves as a director (since 2018), chair of the compensation committee and as a member of the audit committee of Linde plc. He serves as a director (since 2010), member of the corporate governance committee and of the compensation committee and chair of the environmental, health and safety committee of Clean Harbors, Inc. He also serves as a director (since 2018), chairman of the compensation and organizational development committee and member of the sustainability committee of Marathon Petroleum.  Mr. Galante has previously served as a member of the board of directors of Foster Wheeler AG, Andeavor (prior to its merger with Marathon Petroleum) and Praxair (prior to its merger with Linde plc).

Member of the Celanese Environmental, Health, Safety, Quality and Public Policy Committee
Chair of the Celanese Compensation and Management Development Committee

kathryn m. hill d

kathryn m. hill

Ms. Hill served in a number of positions at Cisco Systems, Inc. from 1997 to 2013, including, among others, as Executive Advisor from 2011 to 2013, Senior Vice President, Development Strategy and Operations from 2009 to 2011, Senior Vice President, Access Networking and Services Group from 2008 to 2009, and Senior Vice President, Ethernet Systems and Wireless Technology Group from 2005 to 2008. Cisco designs, manufactures and sells Internet Protocol (IP)-based networking and other products related to the communications and information technology industry and provides services associated with these products. Prior to joining Cisco, Ms. Hill had a number of engineering roles at various technology companies. Ms. Hill has served as a member of the board of directors of Moody’s Corporation, a provider of (i) credit ratings, (ii) credit, capital markets and economic related research, data and analytical tools, (iii) software solutions and related risk management services, (iv) quantitative credit risk measures, financial services training and certification services and (v) outsourced research and analytical services to financial institution customers, since May 2011, including currently serving as the chair of the compensation and human resources committee and as a member of the audit committee, the governance and nominating committee and the executive committee. She also currently serves as a member of the board of directors (since 2013) and as a member of the the compensation committee and the corporate governance and nominating committee of NetApp, Inc. Ms. Hill is a member of the Board of Trustees for the Anita Borg Institute for Women and Technology.

Member of the Celanese Compensation and Management Development Committee
Chair of the Celanese Environmental, Health, Safety, Quality and Public Policy Committee

david f. hoffmeister d

david f. hoffmeister

Mr. Hoffmeister served as the Senior Vice President and Chief Financial Officer of Life Technologies Corporation, a global life sciences company, prior to its acquisition by Fisher Scientific Inc. in February 2014. From October 2004 to November 2008, he served as Chief Financial Officer of Invitrogen Corporation, which merged with Applied Biosystems in November 2008 to form Life Technologies Corporation. Before joining Invitrogen, Mr. Hoffmeister spent 20 years with McKinsey & Company as a senior partner serving clients in the healthcare, private equity and chemical industries on issues of strategy and organization. From 1998 to 2003, Mr. Hoffmeister was the leader of McKinsey’s North American chemical practice. Mr. Hoffmeister serves as a director of Glaukos Corporation (since 2014) and member of the audit committee. He also serves as a director (since 2018) of ICU Medical Inc. where he is a member of its audit committee and compensation committee and StepStone Group Inc., a private markets investment firm (since 2020), where he is chair of the audit committee.

Member of the Celanese Audit Committee
Member of the Celanese Nominating and Corporate Governance Committee

jay v. ihlenfeld d

jay v. ihlenfeld

From 2006 until his retirement in 2012, Mr. Ihlenfeld served as the Senior Vice President, Asia Pacific, for 3M Company, a leader in technology and innovation. Mr. Ihlenfeld previously served as 3M Company’s Senior Vice President, Research and Development from 2002 to 2006. A 33-year veteran of 3M Company, Mr. Ihlenfeld has also held various leadership and technology positions, including Vice President of its Performance Materials business and Executive Vice President of its Sumitomo/3M business in Japan. Mr. Ihlenfeld serves as a director and member of the compensation committee and the environmental, health, safety and quality committee (since 2017) of Ashland Global Holdings, Inc.

Member of the Celanese Compensation and Management Development Committee 
Member of the Celanese Environmental, Health, Safety, Quality and Public Policy Committee

deborah j. kissire d

deborah j. kissire

Deborah J. Kissire retired in 2015 as Vice Chair and Regional Managing Partner, member of the Americas Executive Board and member of the Global Practice Group of Ernst & Young LLP, an independent registered public accounting firm. During her more than 35-year career in the financial sector, Ms. Kissire served in various leadership positions at Ernst & Young, including Vice Chair and Regional Managing Partner for the East Central and Mid-Atlantic Regions and U.S. Vice Chair of Sales and Business Development. In addition to expertise in public company accounting and financial reporting, Ms. Kissire has significant executive-level experience in positions involved with strategic planning, governance, global branding, and gender inclusiveness. Ms. Kissire has served as a member of the board of directors of Cable One, Inc., a leading American cable and internet service provider, since 2015, including as chair of the audit committee. In 2016, she joined the board of directors of Omnicom Group Inc., a global marketing and corporate communications holding company, and currently serves on its audit and finance committees. Ms. Kissire also has served on the board of directors of Axalta Coating Systems Ltd., a manufacturer of liquid and powder coatings, since 2016, where she is currently a member of the compensation committee and the chair of the nominating and corporate governance committee. She is a member of the Advisory Board for Texas State University’s McCoy College of Business and has served on the boards of Goodwill Industries of Greater Washington and Junior Achievement USA.

Chair of the Celanese Audit Committee
Member of the Celanese Environmental, Health, Safety, Quality and Public Policy Committee

kim k.w. rucker d

kim k.w. rucker

Kim Rucker is an accomplished executive, holding senior leadership positions since 2004. Most recently, EVP, General Counsel & Secretary of Andeavor, a Fortune 100 company. She has held similar top leadership roles at Kraft (Kraft-Heinz) and Avon. Kim serves on the Board of Directors of Lennox International Inc. a $3.8 billion global company, Marathon Petroleum Corporation, a premier U.S. refining, marketing, and midstream company with a nationwide footprint, and the Board of Trustees of Johns Hopkins Medicine, an $8 billion nonprofit. She has been described as "an extraordinary strategic leader," with a passion for developing people to perform their best and driving business results. Kim is focused and has a sense of purpose and enthusiasm that she infuses in those around her. Kim has numerous recognitions and awards for her achievements. She is a sought-after speaker on a variety of topics including corporate governance, corporate reputation, leadership, ethics and compliance and managing for value, and she has authored many articles and a book chapter. Kim holds a JD from Harvard Law School and a Master in Public Policy from the John F. Kennedy School of Government at Harvard. She was raised in the Chicago area, and lives in San Antonio with her husband and two children.

Member of the Celanese Audit Committee
Chair of the Celanese Nominating and Corporate Governance Committee

lori j. ryerkerk d

lori j. ryerkerk

Lori J. Ryerkerk is the Chief Executive Officer 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.

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 previously served on the board of directors 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.

 

Committee Membership

Audit Committee Compensation and Management Development Committee Nominating and Corporate Governance Committee Environmental, Health, Safety, Quality and Public Policy Committee
Jean S. Blackwell
William M. Brown 1
Edward G. Galante
Kathryn M. Hill
David F. Hoffmeister
Jay V. Ihlenfeld
Deborah J. Kissire
Kim K.W. Rucker
Lori J. Ryerkerk 2
= Chairman     = Member
1 Lead Independent Director    2 Chairman of the Board, Chief Executive Officer & President

Contact the Board

The board of directors has adopted the following procedure in accordance with the requirements of the NYSE and the SEC for stockholders or other interested parties to communicate with the board and its members. Stockholders and other parties interested in communicating directly with the non-management directors as a group, an individual director or the board may do so by sending their communications to:

Celanese Corporation
Board of Directors
222 W. Las Colinas Blvd., Suite 900N
Irving, Texas 75039
Attn: Corporate Secretary

All communications received by the Corporate Secretary will be delivered to one or more members of the board as appropriate, as determined by the Corporate Secretary. Notwithstanding the foregoing, the Corporate Secretary will maintain for the benefit of the board for a period of two years following the receipt of any communication, a record of all communications received in compliance with this policy.

Members of the board may review this record of communications upon their request to the Corporate Secretary. In addition, the receipt of any accounting, internal controls or audit-related complaints or concerns will be directed to the Chairman of the audit committee.