Shareholders’ Committee


Chairman of Shareholders' Committee
Matthias Zachert

Matthias Zachert was born in Bonn, Germany in 1967. He completed an industrial management apprenticeship at Mercedes-Benz AG before he studied business administration with a concentration in finance and international management from 1990 to 1995. He graduated with a degree in business administration (Diplom-Kaufmann).

From 1999 to 2002, Matthias Zachert worked in Paris as Chief Financial Officer of the International Region of Aventis Pharma AG, which was formed by the merger of Hoechst Marion Roussel (HMR) and Rhône-Poulenc Rorer. Before the merger that created Aventis, he held various senior management positions in the pharmaceutical business of Hoechst AG. As of 2002 Matthias Zachert was Chief Financial Officer at Kamps AG, where he helped to restructure the company. Matthias Zachert served as Chief Financial Officer of LANXESS AG from 2004 to 2011, where he played a key role in establishing the global finance organization, restructuring the portfolio, and realigning the Bayer spin-off. From June 2011, he has been a member of the Executive Board and Chief Financial Officer at Merck KGaA. Since April 1, 2014, Matthias Zachert is Chairman of the Board of Management of LANXESS AG.

Vice Chairman of Shareholders' Committee
Ahmed A. Al-Subaey

Ahmed A. Al-Subaey is Saudi Aramco’s Vice President of Marketing, Sales & Supply Planning. Al-Subaey serves on the Board of Directors of a number of Saudi Aramco joint-venture companies and in December 2015, he was appointed to the Board of Directors of the Korean engineering & construction major POSCO E&C.

Al-Subaey’s career at Saudi Aramco began in 1985 when he joined the Power Distribution Department after obtaining his Bachelor's degree in Electrical Engineering. After completing a Masters of Electrical Engineering at Arizona State University, he worked in project engineering and was appointed in 1999 as superintendent of the NGL Maintenance Division at Ras Tanura Refinery. In 2001, he transferred to the Joint Venture organization as a senior coordinator for Saudi Aramco’s domestic portfolio.

Al-Subaey moved to Saudi Aramco’s Marketing organization in 2003 and was appointed the President of Saudi Petroleum Ltd., the company’s marketing representative office in Tokyo. In 2006, after completing the Executive MBA program at Stanford University, he was named President and CEO of Saudi Petroleum International Inc. in New York. In 2008 he was appointed CEO and Representative Director of S-Oil based in Korea.

In 2012 Al-Subaey returned to Saudi Arabia to lead the Strategic Transformation Office. He was promoted to Executive Director in October the same year and returned to the marketing organization as its Executive Director in 2013. In May of 2016 Al-Subaey was promoted to his current title.

Member of Shareholders' Committee
Michael Pontzen

Michael Pontzen was born in Mönchengladbach, Germany, in 1969. After obtaining a degree in business administration (Diplom-Kaufmann) from the Philipps University in Marburg, he started his career as assistant to the Management Board of Ferrostaal AG in Essen, Germany. In 1999, he joined MAN AG as a manager in Investor Relations before moving to EADS (now Airbus) in Munich, Germany, in August 2001, where he was a team leader in Investor Relations.

Pontzen joined LANXESS in November 2004 as head of the Investor Relations group function. In October 2008, he became head of Corporate Finance within the Treasury group function. He additionally assumed responsibility for Risk and Cash Management from spring 2009.

Pontzen has been head of the Corporate Controlling group function since January 2012.

Michael Pontzen was appointed by the Supervisory Board of LANXESS AG on March 17, 2015, to become Chief Financial Officer of the specialty chemicals company effective April 1, 2015.

Member of Shareholders' Committee
Olivier Thorel

Olivier Thorel has joined Aramco on Jan 1st 2018 as Executive Director for the Chemicals business.

Thorel studied science and economics and graduated from École Polytechnique in 1988. Additionally, Thorel holds a Master in Finance from Université Paris Dauphine and attained an executive MBA from the business school Insead in 2002.

In 1990 Thorel joined Shell in France. Until 2006 he held various positions in the Chemicals business in Manufacturing, Sales, Marketing, Supply Chain and as Global General Manager, based in France, the Netherlands and London. He then led the Global Base Oil business and thereafter became Vice President for Supply, distribution and Shell Pipelines for North America, based in Houston.

Since 2013 Thorel has led various parts of the Shell Chemicals business as Vice President Global intermediates, and then as Vice President Asia, Ventures and New Business Development, based in Singapore.