VanDeMark Corporate Leadership Responsibilities


Boudewijn van Lent – President and CEO       

Boudewijn joins VanDeMark from dss+ where he served as the Global Chemical Industry Director.  Prior to joining dss+, Boudewijn was Executive Vice President and Member of the Board of Management of the Specialty Construction Chemicals business of GCP Applied Technologies. In addition, Boudewijn has served as CEO of Bilfinger’s Industrial Services, Inc. (NA), President of Rhein Chemie (NA), and as a Vice President for Celerant Consulting.

Boudewijn started his career at Bayer in 1989 and held various roles at Bayer and LANXESS in Germany, Canada and in the US. Fluent in English, German, and Dutch, Boudewijn earned his Doctor of Philosophy in Physical and Colloid Chemistry, and his Master of Science in Molecular Science from the University of Wageningen in The Netherlands. He is a member of the National Association of Corporate Directors and is a former member of several industry and government affairs associations. He has authored numerous technical articles and presented at industry conferences.

Tamás Vörös – Managing Director 

Tamás Vörös joined Framochem in March 2022 as Managing Director. He has over 20 years of experience in phosgene based chemical manufacturing and the pharmaceutical industry. His former positions include manufacturing director at  KisChemicals, plant manager at  Teva Pharmaceutical Industries and BorsodChem Ltd., and API  Production manager at Alkaloida Chemical Inc. He holds a Chemist degree and an MSc degree in separation techniques.


Doug Dentler – Vice President and CFO

Doug is responsible for the finance, accounting, and information technology organizations. He has more than 20 years of experience in finance leadership roles in both public and private organizations. Doug joined VanDeMark from Eaton Corporation where he served as VP, Finance for the Global Energy Infrastructure Solutions North America business. Previously, he held finance leadership roles at Stanley Black & Decker, Nelson Global, PolyOne (now Avient), and Avery Dennison specializing in financial analysis, planning, investor relations, plant controllership, and team building.

Doug earned his MBA degree, with a concentration in Organizational Behavior, from Case Western Reserve University and his BSBA degree in Finance, with a minor in Economics, from John Carroll University.  He is also a certified Six Sigma Greenbelt.

Tamás Bodnár – Finance Director

Tamás Bodnár joined Framochem in January 2022 as Finance Director for the operations in Hungary. Mr. Bodnár has long finance experience in FMCG sales and manufacturing and household electronics manufacturing. Prior to his employment at Framochem, he worked for Mars Inc. in Hungary in various finance and accounting positions and at Vestfrost A/S, a Danish refrigerator and freezer manufacturer as CFO. Mr. Bodnár has collage degree in economics and qualified as chartered accountant and tax advisor.


Maria Halford – Chief Commercial Officer

Maria Halford joined VanDeMark in 2023 bringing nearly 25 years of experience in product development, marketing, and sales leadership from both public and private organizations.   She is responsible for VanDeMark’s commercial strategies and objectives inclusive of new product development. Maria joins us from the flexible packaging industry where she was the Vice President of Global Marketing,  pioneering the global marketing organization for ProAmpac where she developed and deployed strategic marketing, product management and corporate analytics before serving as the Vice President of Sales.  Prior to ProAmpac, Maria was in several key leadership roles in product development and marketing at WR Grace with a focus on Materials Technologies (fine chemicals, pharmaceutical excipients, food ingredients and chromatography).  She started her career in public policy chemical research for the USDA and FDA which later led to technology roles at technology Pfizer (formerly Wyeth) and Roche (formerly BioVeris).

Maria holds a degree in Chemical Engineering from Virginia Tech and an MBA from the University of Maryland in addition to completing executive education coursework at Indiana University Kelley School of Business.

Research & Development

Bill Ewing – Director of Research and Development

Dr. Ewing joined VanDeMark in 2023 as the Director of Research and Development where he is responsible for overseeing R&D efforts into new products and process improvements. Additionally, Dr. Ewing’s role includes fostering the expansion of VanDeMark’s product portfolio through identification and evaluation of new target compounds and applications.

Dr. Ewing brings a background in evaluating the chemistry of emerging technologies with experience in battery technology, hydrogen storage, polymer manufacture, ionic liquids, and industrial approaches to reactive, high-energy or otherwise challenging synthetic products. Prior to joining VanDeMark, Dr. Ewing served as the Director of Chemistry for Boron Specialties, LLC, where he was tasked with overseeing chemistry operations, along with identifying customers and applications for the company’s specialty materials. Before this he held both an international postdoctoral position at the University of Würzburg (Germany) and the Seaborg Fellowship at the Los Alamos National Laboratory.

Dr. Ewing received a Bachelor’s degree in chemistry from Harvard University, a Master’s degree in Materials Science and Engineering from the University of California at Berkeley and a Doctorate in Chemistry from the University of Pennsylvania. He has authored more than thirty-five original research papers in a range of high impact publications.


Scott Honan – Vice President of Operations, N.A.

Scott Honan joined Vandemark in 2015 as the Plant Manager of the Lockport facility and was promoted to his current role of Executive Vice President of Operations, N.A. in 2023.  Scott has more than 30 years of chemical manufacturing industry experience.

In his current role, Scott is responsible for the leadership of plant operations, material planning requirements, plant engineering and maintenance, human resources and process engineering.  During his tenure at Vandemark Scott has played an instrumental role in the development of many of the company’s proprietary processes and products, as well as the Company’s continuous improvement initiatives throughout its manufacturing operations.

Prior to joining Vandemark, Scott gained meaningful manufacturing, business development and management experience at Eastman Kodak Company in various technical and leadership roles over his 18-year tenure.  Previously, he held manufacturing leadership roles at Niacet Corporation and Buffalo Color Corporation.  Scott earned a B.S. in Chemical Engineering from the State University of New York at Buffalo and is a certified Six Sigma Blackbelt.