Meet the Management Team

ATC management team has more than 90 years of combined experience in high temperature thermal plasma technology, energy industry, and legal field.

Shyam V. Dighe, Founder, President & CEO

Dr. Dighe has over 30 years of management experience in diversified fields of chemical and high-temperature plasma technology. He is the founder of Westinghouse Plasma Corporation (WPC), which he formed after purchasing the plasma division from Westinghouse Electric Corp., Pittsburgh in 1999. He was responsible for the management of all operations at the Westinghouse Plasma Center located at Waltz Mill site, Madison, Pennsylvania.

During eight years under Dr. Dighe’s direction, WPC built four commercial plants worldwide utilizing plasma technology for the conversion of municipal solid waste (MSW) and other hazardous wastes to useful electricity. Two MSW-to-energy plants were built in Japan with the participation of Hitachi Metals Ltd. The other two waste-to-energy plants were built in India to treat hazardous wastes.

WPC was sold to Alter NRG Corp, a Canadian public corporation, in 2007. Dr. Dighe continued as the President of WPC until 2009. In 2010, he started Dighe Technologies Corporation (DTC), a holding company, to develop plasma projects. Currently, he is President and CEO of AquaSource Technologies Corporation which was started in 2011 to provide wastewater treatment service to the shale drilling companies.

Dr. Dighe has worked extensively in the areas of nano-spheres technology for making metal oxide powders and chemical vapor deposition technology for making diamond films with DC plasma arc heaters. He has also worked in the areas of toxic and hazardous waste treatment, coal gasification, fuel cells and ocean thermal energy conversion (OTEC).

Dr. Dighe holds 19 US patents and 4 Canadian patents. He has published several peer-reviewed papers in the above areas of research.

John R. Previs, Chief Counsel & Secretary

John R. Previs is a co-founder of AquaSource Technologies.  He also serves as chief legal counsel and secretary of the corporation

John is a shareholder with Buchanan Ingersoll & Rooney PC, practicing in the firm’s Corporate Finance & Technology Section. He is also a member of the Franchise and Distribution Practice Group.

For more than 30 years, John has been involved primarily in representing closely held businesses. His principal activity has been in structuring and closing transactions, including the buying, selling and financing of commercial entities.

John has been responsible for the closing of more than 200 transactions for companies ranging in size from local family businesses to those involved in large, multi-tiered money center financings.

This immersion in transactional work over many years enables John to understand the needs and expectations of the parties in financing transactions. His background and knowledge help him to anticipate problems and obstacles in advance and to organize and structure transactions so they can proceed to closing in a cost effective manner. Through creativity and care, John provides ideas and solutions to meet identified needs, through a positive "how to" approach.

Additionally, John has represented franchisors in many aspects of the franchise system, including the preparation of franchise agreements and franchise disclosure documents, the negotiation of franchise agreements and the purchase, sale and termination of franchises, both domestic and international. He has also represented franchisees in the review and negotiation of franchise agreements and the financing to establish new businesses.

More recently, John has been working with clients in the shale gas wastewater and water purification markets, bringing creative solutions through technology to the water treatment and water scarcity issues in these markets.

He has been selected by his peers for inclusion in the 2015, 2017 and 2018 Best Lawyers in America® list under the Corporate Law category.

John is a frequent speaker at local and regional trade and industry meetings. He is a native of Pittsburgh, Pennsylvania.

Jong M. Lee, Vice President, Projects

Jong Lee is a retired executive from Westinghouse Siemens Corporation where he had a thirty-five year career.  Before joining AquaSource Technologies, Jong worked as project manager in charge of building large power plants which utilized combustion turbines. 

Jong successfully executed project for up grading three Westinghouse 251 for the Saudi, ARAMCO.  He was in charge of installation of 104 ton/hr plasma-fired cupola for major steel mill (Geneva Steel Co.).  He also provided technical direction for installation of combined cycle plants, consisting of 7 Gas Turbines and 2 of Steam Turbines at KEPCo. (Korea Electric Power Co.) in Ilsan and Puchon.