Dirk Triest joined Tenneco in November 2022 as part of the company’s newly created Office of Strategic Execution. He is a member of the company’s executive leadership team and is responsible for developing and implementing strategies for improving operational efficiency and achieving accelerated growth. His addition brings more than 30 years of extensive experience with leading multinational companies in global strategic planning, operational improvement, M&A and finance to the Tenneco team.

Beginning in 2015, Triest began working with Apollo portfolio companies, most recently with Kem One in France as vice president, strategy execution and with Vectra/VAC in Germany. Prior to 2015, he served as director, business planning & execution for Solutia (subsequently acquired by Eastman), where he was instrumental in the development and execution of the strategic reorientation of the Rubber Chemicals division. Triest managed the divestment initiatives including the sale and closure of non-strategic assets. Additionally, he took a leading role in the acquisition projects. From 1995 to 2007 with Flexsys, Triest led the corporate financial management function before gradually moving into the role of director, strategic planning & analysis in combination with the Treasury responsibilities. In 2007 the company was acquired by Solutia. Triest began his career in 1981 with Monsanto at the European regional headquarters in Brussels, where he held several positions in product management, business analysis and capital planning.

Triest holds master’s degrees in business engineering from the University of Antwerp, Belgium and in management from Boston University. Additionally, he enhanced his skillset with advanced management courses at INSEAD in Fontainebleau, France.