Exhibit 99.1

Calgon Carbon Announces First Quarter Results

PITTSBURGH--(BUSINESS WIRE)--May 1, 2012--Calgon Carbon Corporation (NYSE: CCC) announced results for the first quarter ended March 31, 2012.

The company reported net income of $7.7 million for the first quarter of 2012, as compared to net income of $8.5 million for the first quarter of 2011. On a fully diluted share basis, earnings per common share for the first quarter of 2012 were $0.14 versus $0.15 for the first quarter of 2011.

Net sales for the first quarter of 2012 were $136.6 million, a 9.8% increase over net sales of $124.4 million for the first quarter of 2011. Currency translation had a $0.3 million negative impact on sales for the first quarter of 2012 due to the stronger dollar.

For the first quarter of 2012, sales for the Activated Carbon and Service segment increased 3.9% as compared to the first quarter of 2011. The increase was due to higher demand for activated carbon products and services in four of six market segments: food, metals recovery, environmental air, and environmental water.

Equipment sales increased by 76.8% in the first quarter of 2012 versus the comparable period in 2011 due primarily to higher revenue from ballast water treatment systems and, to a lesser extent, from ion exchange equipment. The increase was partially offset by lower revenue from sales of carbon adsorption equipment.

The increase in consumer sales was attributed to higher demand for activated carbon cloth.

Net sales less the cost of products sold (excluding depreciation and amortization), as a percentage of net sales for the first quarter of 2012 was 31.3%, versus 33.3% for the first quarter of 2011. The decline was due to higher 2012 plant maintenance costs, unfavorable product mix, and increased raw material costs in the Activated Carbon and Service segment as well as a higher proportion of our total revenue attributed to the Equipment segment. Costs related to the repair of two new reactivation facilities in Belgium and China also contributed to the decline.

Selling, administrative and research (SG&A) expenses for the first quarter of 2012 were $23.9 million versus $22.3 for the comparable period of 2011. The increase was primarily the result of employee related expenses, including staff additions at Hyde Marine, the company’s ballast water treatment business. SG&A as a percentage of sales improved to 17.5% as compared to 18.0% for the first quarter of 2011.

Calgon Carbon’s board of directors did not declare a quarterly dividend.

Commenting on the quarter, John Stanik, Calgon Carbon’s chairman, president and chief executive officer, said, “Demand for activated carbon increased year-over-year, and pricing overall was stable. The sequential increase in Calgon Carbon Japan’s margins was a good start but, going forward we will intensify efforts to improve margins in all regions.”

Calgon Carbon Corporation, headquartered in Pittsburgh, Pennsylvania, is a global leader in services and solutions for making water and air safer and cleaner.

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

This news release contains 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, including statements regarding future growth and profitability, price increases, cost savings, broader product lines, enhanced competitive posture and acquisitions, are included in the company’s most recent Annual Report 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. Further, the company operates in an industry sector where securities values may be volatile and may be influenced by economic and other factors beyond the company’s control. Some of the factors that could affect future performance of the company are higher energy and raw material costs, costs of imports and related tariffs, labor relations, capital and environmental requirements, changes in foreign currency exchange rates, borrowing restrictions, validity of patents and other intellectual property, and pension costs. In the context of the forward-looking information provided in this news release, please refer to the discussions of risk factors and other information detailed in, as well as the other information contained in the company’s most recent Annual Report.

CONTACT:
Calgon Carbon Corporation
Gail A. Gerono, 412-787-6795
www.calgoncarbon.com