Item 4.01. Change in Registrant's Certifying Accountant

Effective November 26, 2008, upon the filing of the Ashland Inc. ("Ashland") annual report on Form 10-K for the year ended September 30, 2008, Ernst & Young LLP ("E&Y") has completed its audit for Ashland's fiscal year and is no longer Ashland's independent registered public accounting firm.

As a result of a competitive request for proposal process undertaken by the Audit Committee of the Board of Directors (the "Audit Committee") of Ashland, on August 25, 2008, the Audit Committee approved the engagement of PricewaterhouseCoopers LLP ("PwC") as Ashland's independent registered public accounting firm for the fiscal year ending September 30, 2009. PwC was engaged on August 26, 2008.

On August 26, 2008, the Audit Committee notified E&Y that it will be dismissed as Ashland's independent registered public accounting firm to audit Ashland's consolidated financial statements, effective upon the completion of its audit for the fiscal year ending September 30, 2008.

No Dissatisfaction with Services:

The change in accountants did not result from any dissatisfaction with the quality of professional services rendered by E&Y.

No Prior Consultation with New Accountant:

During Ashland's two most recent fiscal years ended September 30, 2007 and 2006 and through August 26, 2008, neither Ashland nor anyone on its behalf has consulted with PwC regarding (i) the application of accounting principles to a specified transaction, either completed or proposed; or the type of audit opinion that might be rendered on Ashland's financial statements, and neither a written report nor oral advice was provided to Ashland that PwC concluded was an important factor considered by Ashland in reaching a decision as to the accounting, auditing or financial reporting issue; or (ii) any matter that was either the subject of a "disagreement" (as that term is defined in Item 304(a)(1)(iv) of Regulation S-K and the related instructions to Item 304 of Regulation S-K) or a "reportable event" (as that term is defined in Item 304(a)(1)(v) of Regulation S-K). In deciding to select PwC, the Audit Committee reviewed auditor independence issues and existing commercial relationships with PwC and concluded that PwC has no commercial relationship with Ashland that would impair its independence.

No Adverse Opinion or Disagreement:

E&Y's reports on Ashland's consolidated financial statements for fiscal years ended September 30, 2008 and 2007 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. During the fiscal

-2-

years ended September 30, 2008 and 2007, and in the subsequent interim period through November 26, 2008, there were (i) no disagreements between Ashland and E&Y on any matter of accounting principles or practices, financial statement disclosure or auditing scope or procedure, which disagreement, if not resolved to the satisfaction of E&Y, would have caused E&Y to make reference to the subject matter of the disagreement in its reports on the consolidated financial statements for such years, and (ii) no "reportable events" as that term is defined in Item 304(a)(1)(v) of Regulation S-K.

Ashland provided E&Y with a copy of this Current Report on Form 8-K/A, and requested that E&Y furnish Ashland with a letter addressed to the U.S. Securities and Exchange Commission stating whether E&Y agrees with the disclosure contained in this report, or, if not, stating the respects in which it does not agree. Ashland has received the requested letter from E&Y, and a copy of E&Y's letter is filed as Exhibit 16.1 to this Current Report on Form 8-K/A.

Item 9.01. Financial Statements and Exhibits

(d) Exhibits

16.1 Letter of Ernst & Young LLP, dated December 1, 2008, regarding change in independent registered public accounting firm.

-3-