As Managing Director of DeWitt & Company and Director of the Aromatics Division, Teresa Acosta, directs the DeWitt activities in the Aromatics Industry. Her leadership provides clients with accurate and timely information of the market direction and the interpretation thereof.

Prior to joining DeWitt & Company in 1980, Mrs. Acosta worked at Shell Chemical, in Houston, in the Olefins and Aromatics Business Center. While at Shell, her main responsibility was to outline strategy for the major players in olefins and aromatics in the United States.

EP de Guzman, Vice President of Btx & Derivatives in the Asian Pacific, brings more than 35 years of petrochemical experience to DeWitt's Aromatics Team.

Mr. de Guzman provides consultancy services to our clients for the Asian markets in the Benzene & Derivatives and Toluene, Xylenes & Isomers market. He actively promote our services and seek new clients in the Asian Region.

Andy Nicholson has 25 years experience in the petrochemical industry. After studying languages at the universities of Cambridge and Freiburg, Andy joined ICI’s Petrochemicals Division and over 13 years worked in a variety of sales, marketing and trading positions in the UK and Germany.

In 1992, Andy joined Rhone-Poulenc in France, where he still lives, taking global responsibility for the purchasing of petrochemical feedstocks.

In 2000 Andy left Rhone-Poulenc, by then Rhodia, to join ChemConnect, where he led the development of online auctions and exchanges in Europe.

At the beginning of 2004, Andy began working for DeWitt & Co in the role of Vice-President, European Aromatics and Derivatives.

Melissa P. Cousin, Aromatics Market Analyst, joined DeWitt & Company from the Information Technology industry where she provided market analyses for software additions. She also provided Safety and Mission Assurance quantitative analyses for various Johnson Space Center projects.

With a BS in Industrial Engineering from the University of Houston, Melissa provides analysis and market studies for the Aromatics services with an eye toward new service startup. She is currently seeking an MBA at the University of Houston.

Tom Stevenson joined DeWitt in 2003, where he is responsible for work on the Benzene/Derivatives and Toluene/Xylenes Annuals and for individual client studies in Europe, the Middle East and Africa.

After obtaining his PhD in Chemistry from Imperial College, London, he spent 22 years with Shell Chemicals Companies where he had a range of responsibilities, spanning activities in Sales/ Business Management, Technical and Global Operations, and Business/ Cost Consulting.

Since 2000 he has been an independent consultant in strategic and marketing issues, and has undertaken several chemical business development projects in the countries of the former Soviet Union.