People make companies what they are. But no one puts their stamp on a company more than the people who shoulder the responsibility for an entire organization.

Executive Management
  • Jagan Nellore

    Chief Executive Officer


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  • Gerard Sweeney



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  • Dr. Günther Weymans

     Executive Vice President, Carbon Distillation and Advanced Materials

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  • Kris Vanherbergen

    Executive Vice President, Carbon Distillation and Advanced Materials

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  • Matthew Scott-Hansen

    Executive Vice President, Carbon Calcination

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  • Bryan Kelly

    Chief Legal Officer


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Jagan Nellore - Chief Executive Officer

Jagan Nellore is the CEO of Rain Carbon Inc. (RCI), bringing more than 20 years of international experience to the company in the finance, commercial and operations areas. Prior to forming RCI, Mr. Nellore was the founder and Managing Director of Rain CII Carbon (Vizag) Limited (originally founded as Rain Calcining Limited), which had commenced operations in the production of calcined petroleum coke (CPC) and energy in 1998 in India. He spearheaded the vision, strategy and execution of the globalization of the Indian entity’s business model through the acquisition of Rain CII Carbon, LLC of the US (formerly CII Carbon, LLC), and by combining the US and Indian CPC and energy business strategies in 2007. Subsequently, he led the 2013 acquisition of RÜTGERS N.V., a coal tar pitch and chemicals producer. Mr. Nellore has successfully integrated the acquired entities under a common RCI ownership and management umbrella to create the world’s leading industrial carbon producer, which has maximized its share of strategic markets.

Mr. Nellore is also the Vice Chairman of Rain Industries Limited (RIL) in India, the ultimate holding company of RCI. RIL, listed on the Indian stock exchanges, further includes a cement production business located in South India, with a capacity of 3.5 million tons per year. Mr. Nellore had restructured Priya Cement's operations for maximum cost savings and efficiency, and successfully turned the previously distressed business to profitability within 18 months.

Mr. Nellore holds a bachelor's degree in Industrial engineering from Purdue University in the United States.

Gerard Sweeney - President

Gerard (Gerry) Sweeney is President of Rain Carbon Inc., a leading vertically integrated global producer of carbon-based and advanced material products that are essential raw materials for staples of everyday life. The company is headquartered in Stamford, Connecticut, USA, and is a wholly owned subsidiary of RAIN Industries Limited, a publicly traded company based in Hyderabad, India.
Mr. Sweeney has more than 30 years of experience with leaders in the industrial carbon industry. Since 2000, he has been instrumental in the global expansion of calcined petroleum coke production throughout Asia and the Middle East, especially China, India and Kuwait.  Mr. Sweeney sits on the board of Rain Commodities (USA) Inc., Rain Carbon Inc., and Rain CII Carbon LLC. He also serves on the boards of several local charities and non-profit organizations.
Mr. Sweeney aspires to build the world’s most Resourceful, Reliable and Responsible industrial organization. He leads Rain Carbon Inc. with the belief that leadership means more than being recognized for industry accomplishments and rankings; it means stepping forward and doing the right things for customers, suppliers, employees, the environment, and the communities where we live and work. Mr. Sweeney holds a bachelor of science degree in accounting and finance from Rowan University (formerly Glassboro State College). 

Dr. Günther Weymans - Executive Vice President, Carbon Distillation and Advanced Materials

Dr. Günther Weymans was named Executive Vice President of Carbon Distillation and Advanced Materials of Rain Carbon Inc. in early 2019, after earlier serving as Chief Operating Officer. He has more than 30 years of experience in the chemical and petrochemical industry with more than 20 years of senior leadership in polyurethanes, performance polymers and synthetic rubber businesses, including Executive Officer positions in Singapore, China, USA, France, Netherlands and Germany. Manufacturing Excellence and Business Development in international teams are his key competencies while managing global midsize companies. He is also Honorary Professor of Quingdao University in China and member of the German-Russian Executive Foundation.

Dr. Weymans’ believes that performance in Safety, Health and Environmental matters create important values for a company. Driving efficiency in operations is an important competitive advantage.

Dr. Weyman’s head office is in Castrop-Rauxel, Germany.

Kris Vanherbergen - Executive Vice President, Carbon Distillation and Advanced Materials

Kris Vanherbergen is Executive Vice President of Carbon Distillation and Advanced Materials at Rain Carbon Inc. In 1995, he began his career at RÜTGERS where he served in various technical, operational and marketing management positions. He became the head of RÜTGERS’ coal chemical refining business in 2008.

As part of the Rain integration process, Mr. Vanherbergen became the head of the commercial area of RÜTGERS’ parent company, Rain Carbon Inc., in 2015. Subsequently, he was named the Chief Commercial Officer in 2016, and assumed his current role in early 2019. Mr. Vanherbergen also serves on the board of the Russian joint venture RÜTGERS-Severtar.

Mr. Vanherbergen was born in Sint-Truiden, Belgium. He studied electro-mechanical engineering with a post-graduate degree in loss prevention from the University of Louvain.

Matthew Scott-Hansen - Executive Vice President, Carbon Calcination

Matthew Scott-Hansen was named Executive Vice President of Carbon Calcination of Rain Carbon Inc. and has over 20 years of experience in multiple areas of the industrial carbon industry, including liquids and solids. He has worked with both suppliers and customers in numerous sectors and industries, including aluminum, cement, coal, electricity, lime, refractory, refining, silicon carbide and steel.

Earlier, as Chief Logistics Officer, he was responsible for the global logistical requirements involved in purchasing raw materials, intra- and inter-plant movements and outbound sales to customers, including all land and water movements of Rain Carbon Inc.’s numerous raw, intermediate and finished materials, working integrally with the operations and commercial teams.

Mr. Scott-Hansen holds two B.A. degrees, in International Studies and in German, from Colby College in the U.S. and an M.A. in International Relations from the Johns Hopkins University School of Advanced International Studies in Bologna, Italy and Washington, DC, USA. He resides in the New York City area with his wife and four children.


 Bryan Kelly - Chief Legal Officer

Bryan Kelly is Chief Legal Officer at Rain Carbon Inc. Mr. Kelly joined the company in 2016 as Legal Counsel, and in 2017 he was promoted to Corporate Counsel & Corporate Secretary. He was appointed to his current position in 2018 and serves as Rain Carbon's legal advisor to the Board of Directors and members of the executive team, ensuring the worldwide availability, continuity and quality of competent, timely and cost-effective legal services throughout the company.  

While at Rain Carbon, Mr. Kelly has successfully completed two large corporate finance transactions to refinance the company's debt by more than $1 billion, reducing interest expense and giving the company additional flexibility to pursue future growth objectives.  

Prior to joining Rain Carbon, he worked for 11 years in a leading New York- and London-based international law firm, where he represented investment banking and public and private companies in corporate finance transactions, mergers and acquisitions, restructuring and compliance with corporate governance requirements.  

Mr. Kelly holds a Bachelor of Arts degree in history from The George Washington University and a Juris Doctor from Brooklyn Law School.