UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. C. 20549 FORM 8-K/A Amendment No. 1 to Current Report Pursuant to Section 13 or 15(d) of THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): April 7, 2000 CALGON CARBON CORPORATION ------------------------------------------------------ (Exact name of registrant as specified in its charter) Delaware 1-15903 25-0530110 - --------------------------------- ----------- ------------------ (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) File Number) Identification No.) P. O. Box 717, Pittsburgh, PA 15230-0717 15230-0717 - ----------------------------------------- ---------- (Address of principal executive offices) (Zip Code) Registrant's telephone number, including area code: (412) 787-6700 -------------- AMENDMENT NUMBER 1 The undersigned registrant hereby amends the following item of its Current Report dated April 7, 2000 on Form 8-K as set forth in the pages attached hereto: Amended Item 4 Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this amendment to be signed on its behalf by undersigned thereto duly authorized. CALGON CARBON CORPORATION ------------------------- (REGISTRANT) Date: May 17, 2000 By /s/ James A. Cederna _________________________ James A. Cederna President and Chief Executive Officer Amendments to current report on Form 8-K dated April 7, 2000 are highlighted by underscore. Item 4. Changes in Registrant's Certifying Accountant - ------ --------------------------------------------- (a) Previous Independent Accountants On April 7, 2000, the Board of Directors of Calgon Carbon Corporation (the Corporation), upon recommendation of the Audit Committee, approved the dismissal of the Corporation's independent accountants, PricewaterhouseCoopers LLP (PWC) to be effective immediately. The audit reports of PWC on the Corporation's financial statements as of December 31, 1999 and 1998 and for the years then ended did not contain an adverse opinion or a disclaimer of opinion and were not qualified or modified as to uncertainty, audit scope or accounting principles. In connection with the audits of the Corporation's financial statements ----------------------------------------------------------------------- as of December 31, 1999 and 1998 and for the years then ended and through the - ----------------------------------------------------------------------------- date of this report, the Company believes there were no disagreements (as - ------------------------------------------------------------------------- defined in Item 304 of Regulation S-K). PWC believes that discussions - ---------------------------------------------------------------------- surrounding two potential charges to the Company's restructuring reserve, which - ------------------------------------------------------------------------------- were never recorded, constitute a disagreement as defined in Item 304 of - ------------------------------------------------------------------------ Regulation S-K. With the exception of this difference of opinion, there were no - -------------------------------------------------------------------------------- issues with PWC on any matters of accounting principles or practices, financial - ------------------------------------------------------------------------------- statement disclosure, or auditing scope or procedure, which matters, if not - --------------------------------------------------------------------------- resolved to the satisfaction of PWC, would have caused PWC to make reference to - ------------------------------------------------------------------------------- the matter in its reports on the financial statements for such years. The - -------------------------------------------------------------------------- Company's Audit Committee was informed by PWC about the discussions related to - ------------------------------------------------------------------------------ the restructuring reserve. PWC stated that they agreed with the accounting for - ------------------------------------------------------------------------------- the final restructure reserve. The Company has also authorized PWC to respond - ------------------------------------------------------------------------------ fully to any and all inquiries of the successor accountant. - ----------------------------------------------------------- During the years ended December 31, 1999 and 1998 and through the date of this report, there were no reportable events as defined in Item 304(a)(1)(v) of Regulation S-K. The Corporation has requested that PWC furnish it with a letter addressed to the Securities and Exchange Commission stating whether or not it agrees with the above statements. A copy of such letter, dated May 15, 2000, is --------------------------------------------- filed as Exhibit 16 to this Form 8-K/A. - --------------------------------------- (b) New Independent Accountants On April 7, 2000, the Audit Committee recommended and the Board of Directors approved, the retention of Deloitte & Touche LLP (D&T) as its new independent accountants for the year ending December 31, 2000. During the years ended December 31, 1999 and 1998 and through the date of this report, neither the Corporation nor anyone else on its behalf consulted D&T regarding any of the matters or events set forth in Item 304(a)(2)(i) and (ii) of Regulation S-K. Item 7. Financial Statements and Exhibits - ------ --------------------------------- Exhibit 16: Letter re. Change in Certifying Accountants. Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. CALGON CARBON CORPORATION ------------------------- (REGISTRANT) Date: May 17, 2000 By /s/ James A. Cederna --------------------------------------- James A. Cederna President and Chief Executive Officer