VanDeMark Corporate Leadership Responsibilities


Jeff Davis – President and CEO

J-DavisJeff Davis joined VanDeMark in 2021 as President and CEO, where he is responsible for Safety, Strategy, Execution, and Organizational Alignment for the company.   He has been active as a portfolio company executive in Private Equity sponsored environments for the last 14 years, following a successful 21‐year career with General Electric.

Starting his GE career in manufacturing, Jeff held a number of increasingly responsible GM/P&L roles in Industrial (Motors and Controls, Lighting) and Advanced Materials (Plastics, Quartz, Ceramics, Sealants) businesses prior to leaving GE to join advanced composites material producer Advanced Glassfiber Yarns as President & COO in 2007. Jeff was recruited to lead the global $1.2B Superabsorbent Polymer Business of Evonik AG in 2010, doubling revenues and EBITDA. Jeff joined Cyanco in 2014 as President and CEO and grew the company to become the leading global supplier of mission critical sodium cyanide reagents for the gold and silver mining industry, eventually leading the company through a successful sale process in 2018.

A native of Florida, Jeff holds a Masters of Business Administration from the University of Florida and a Bachelors of Science in Electrical Engineering from the Florida Institute of Technology.

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.


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..


Larry Grubb – Vice President of Global Sales & Business Development

Joining the company in 2016, Larry Grubb brings more than 35 years of experience and results-oriented performance in the chemical industry. His primary charge is supervisory responsibility for the entire sales staff of both VanDeMark and Framochem as the organization integrates its products and services in the global marketplace.

Grubb most recently served as Director of Business Development for Axiall Corporation, a leading manufacturer of integrated chlorovinyls and vinyl-based building and home improvement products. He previously spent more than 33 years with PPG Industries, including service as the General Manager for Specialty Phosgene Derivatives. He earned a B.S. in Chemical Engineering from the University of Toledo.

Larry has a significant amount of experience negotiating project agreements, acquisitions, and sales of divisions on a worldwide basis. He has been directly responsible for management of the sales force as well as customer acquisition and retention, personnel development, and profit and loss (P&L).

Research & Development

James Cheasty- Director of R&D

J-Cheasty Research Director of VanDeMark Chemical, Cheasty has more than 38 years of experience in the chemical industry, primarily in Research and Development, and over 33 years of experience with VanDeMark Chemical Company. Mr. Cheasty began his employment with VanDeMark in 1983, and was appointed to the position of Research Director in 1995, after having served as Research Laboratory Manager, Laboratory Manager, and Quality Control Laboratory Manager.

Mr. Cheasty’s responsibilities as Research Director with VanDeMark Chemical Company include: providing technical assistance to customers and members of other departments within VanDeMark (e.g. administration, sales, EHSQ, production); evaluating the economic viability and technical feasibility of potential new projects for the company; developing project outlines, designing experimental trials, and directing research activities on projects; project technical and commercial liaison with customers throughout the research phase of a project; supervision of R&D personnel, their development, safety and well-being; conducting data and literature searches; developing department budgets and keeping the department fiscally on-track; regular reporting on R&D activities and progress; and writing project reports.

Prior to his employment with VanDeMark, Mr. Cheasty was employed by Akzo Nobel Chemicals, Inc. where he served as a Researcher with the Process Development Group.

Mr. Cheasty holds a Masters of Science in Business Administration from the State University of New York at Buffalo, Masters of Science in Chemistry from the State University College of New York at Buffalo, and Bachelors of Science in Chemistry from Empire State College of New York. He is a member of the American Chemical Society, American Institute of Chemical Engineers and Synthetic Organic Chemical Manufacturers Association.


Paul Ameis – General Manager

P-Ameis Mr. Paul Ameis joined VanDeMark in 2001 as the Operations Manager of the Lockport facility and was promoted to Executive Vice President in 2003 and Chief Operating Officer in 2005. Mr. Ameis’s most recent role is General Manager for the Lockport VanDeMark facility supporting Lockport’s operations and the integration of the newly acquired Framochem business.

In his current role, Mr. Ameis is responsible for the leadership of plant operations, material planning requirements, plant engineering, research and development, and process engineering. During his tenure at VanDeMark, Mr. Ameis 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, Mr. Ameis gained meaningful manufacturing, and management experience at Occidental Chemical Corporation. Mr. Ameis graduated Summa Cum Laude with a B.S. in Chemical Engineering from the State University of New York at Buffalo.