Press Release

Calgon Carbon Signs Water Treatment Contracts Valued at $3.5 Million for Removal of PFOS

PITTSBURGH, PA  –  06/05/2017

Calgon Carbon Corporation (NYSE:CCC) (Calgon Carbon or the Company) announced today that it has signed contracts for a total value of $3.5 million, under which the Company will provide granular activated carbon (GAC) and associated equipment systems to the city of Newburgh, NY. The systems will remove PFOS (perfluorooctane sulfonate) from the city’s drinking water, which is sourced from the nearby Lake Washington reservoir. The project starts in June 2017.

Under the terms of the contract, Calgon Carbon will supply nine Model 12-40 GAC adsorption systems (18 vessels) and over 700,000 pounds of FILTRASORB® 400AR GAC. The GAC adsorption equipment will be installed in stages, with all equipment expected to be in service by the fourth quarter of 2017. Both the GAC and vessels will be manufactured in the United States.

“The City of Newburgh is eager to begin the use of this state of the art technology to provide clean drinking water to our residents. What Calgon Carbon has provided Newburgh can be offered to so many other communities who are rapidly discovering their exposure to harmful contaminants in their water,” said Michael G. Ciaravino, City Manager Newburgh.

PFOA (perfluorooctanoic acid) and PFOS – the two most commonly produced types of PFAS (perfluoroalkyl substances) which are also referred to as PFCs (perfluorinated compounds) – are manmade compounds used in a variety of products such as firefighting foams and coating additives. They can cause potential developmental effects in fetuses, liver tissue damage, cancer, and thyroid issues. Recently, to provide Americans with a margin of protection from exposure to PFOA and PFOS, the U.S. Environmental Protection Agency (EPA) established a health advisory with levels at 70 parts per trillion.

“Calgon Carbon has been effectively treating emerging contaminants like PFOA and PFOS through the use of GAC for 15 years,” said Nora Stockhausen, Calgon Carbon’s Vice President of the Municipal and Reactivation Business Unit. “These harmful contaminants are, and are expected to continue to be, problematic for many municipalities and private well owners across the United States. We are committed to our partnership with the city of Newburgh and the New York Department of Environmental Conservation, and providing safe drinking water to the people that reside there.”

“GAC is considered a best available technology to combat PFAS or PFCs. Many municipalities choose our coal-based FILTRASORB® GAC because it is a cost-effective treatment and has proven superior to other activated carbons on the market,” said James Coccagno, Executive Vice President of the Core Carbon and Services Division.

Pure Water. Clean Air. Better World.

Calgon Carbon Corporation (NYSE:CCC) is a global leader in innovative solutions, high quality products and reliable services designed to protect human health and the environment from harmful contaminants in water and air. As a leading manufacturer of activated carbon, with broad capabilities in ultraviolet light disinfection, the Company provides purification solutions for drinking water, wastewater, pollution abatement, and a variety of industrial and commercial manufacturing processes.

Calgon Carbon is the world’s largest producer of granular activated carbon and supplies more than 100 types of activated carbon products – in granular, powdered, pelletized and cloth form – for more than 700 distinct applications.

With the recent acquisition of complementary wood-based activated carbon and filtration media capabilities located in Europe, Calgon Carbon becomes an even more global and diverse industry leader in activated carbon, reactivation, and filtration media in the form of diatomaceous earth and perlites.

Headquartered in Pittsburgh, Pennsylvania, the Company employs approximately 1,400 people and operates 20 manufacturing, reactivation, innovation and equipment fabrication facilities in the U.S., Asia, and in Europe, where Calgon Carbon is known as Chemviron.

For more information about Calgon Carbon’s leading activated carbon, filtration media, and ultraviolet technology solutions, visit www.calgoncarbon.com.

This news release may contain historical information and forward-looking statements. Forward-looking statements typically contain words such as “expect,” “believe,” “estimate,” “anticipate,” or similar words indicating that future outcomes are uncertain. Statements looking forward in time are included herein pursuant to the “safe harbor” provision of the Private Securities Litigation Reform Act of 1995. They involve known and unknown risks and uncertainties that may cause the Company’s actual results in future periods to be materially different from any future performance suggested herein. Any forward-looking statement speaks only as of the date on which such statement is made and the Company does not intend to correct or update any forward-looking statements, whether as a result of new information, future events or otherwise, unless required to do so by the Federal securities laws of the United States.