Exhibit 99.1

Calgon Carbon Announces Full Year and Fourth Quarter Results

PITTSBURGH--(BUSINESS WIRE)--February 27, 2012--Calgon Carbon Corporation (NYSE: CCC) announced results for the full-year and fourth quarter ended December 31, 2011.

For the year ended December 31, 2011, the company reported net income of $39.2 million, a 12.6% increase over net income for the comparable period in 2010. Earnings per common share on a fully diluted basis were $0.69 for the year ended December 31, 2011, as compared to $0.61 per common share for the year ended December 31, 2010.

Net sales for the year ended December 31, 2011, were $541.5 million, an increase of 12.3% over the comparable period in 2010. The increase from Calgon Carbon Japan’s (CCJ) first quarter 2011 sales was $17.9 million. CCJ was not reported on a consolidated basis until March 31, 2010. For the year, foreign currency translation had a $13.9 million positive impact on sales due to the weaker U.S. dollar.

Net income for the fourth quarter of 2011 was $4.9 million, or $0.09 per common share, on a fully diluted basis, versus $12.5 million, or $0.22 per common share, on a fully diluted basis for the fourth quarter of 2010.

Net sales for the fourth quarter of 2011 were $138.2 million, an increase of 5.1% versus fourth quarter 2010 sales of $131.5 million. Currency translation had a $1.3 million positive impact on sales for the fourth quarter of 2011, all of which were related to CCJ’s sales.

For the fourth quarter of 2011, sales for the Activated Carbon and Service segment were $122.0 million versus $116.9 million for the fourth quarter of 2010, a 4.4% increase. CCJ’s sales for the fourth quarter accounted for $22.4 million, which represents a $3.9 million increase over the comparable period of 2010.

Excluding CCJ’s contribution, sales growth for the fourth quarter of 2011 was attributed to higher prices for activated carbon products and services in the U. S. and Europe. In those two regions, sales increased in the wastewater, food, and environmental air markets versus the fourth quarter of 2010. These increases were, for the most part, offset by a decline in sales to the respirator and potable water markets.

Equipment sales increased by 10.3% versus the fourth quarter of 2010. The growth in this segment was due solely to the company’s UV businesses, especially Hyde Marine, and was partially offset by weak demand for carbon adsorption equipment.

In the Consumer segment, sales of activated carbon cloth offset the effect of the final disposition of the company’s former PreZerve product line.

Net sales less the cost of products sold as a percentage of net sales for the fourth quarter of 2011 was 30.9%, versus 33.0% for the fourth quarter of 2010. Sales of low-margin outsourced products, particularly at CCJ, as well as expenses related to equipment failures during the start-up of the company’s new reactivation facilities in Europe and China, had an adverse impact on margins in the fourth quarter of 2011.

Selling, administrative and research expenses for the fourth quarter of 2011 were $5.4 million higher than for the comparable period of 2010. The increase was primarily due to $2.2 million in severance expense related to management changes in Europe and Asia; testing costs associated with advanced products for mercury removal; and staff additions at Hyde Marine.

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

Commenting on the results, John Stanik, Calgon Carbon’s chairman, president and chief executive officer, said, “After three quarters of solid performance, the fourth quarter proved to be quite challenging. Fortunately, most of the problems were temporary and are being resolved.”

“For the long term, our outlook and our strategy have not changed, and I am confident that our new organization will better allow us to capitalize on our growth opportunities. We will continue to look to ballast water treatment, reactivation services, disinfection by-products, and mercury removal for sustained growth throughout the decade.”

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

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

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