UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

~~CURRENT~~Current ~~REPORT~~Report

Pursuant to Section 13 ORor 15(d) of the Securities

~~The Securities~~ Exchange Act of 1934

April 28, 2006

Date of Report (Date of earliest event reported)

~~April~~KOPPERS ~~26,~~INC. ~~2005~~

Koppers Inc.

(Exact name of registrant as specified in its charter)

Pennsylvania	1-12716	25-1588399
(State or other jurisdiction of incorporation)	(Commission File Number)	(IRS Employer Identification No.)
(State or other jurisdiction of incorporation or organization)	(Commission File Number)	(I.R.S. Employer Identification No.)

436 Seventh Avenue Pittsburgh, Pennsylvania		15219
(Address of principal executive offices)		(Zip Code)

436 Seventh Avenue

~~Registrant’s telephone number~~Pittsburgh, ~~including~~Pennsylvania ~~area~~15219 ~~code 412-227-2001~~

(~~Former~~Address ~~name~~of orprincipal ~~former~~executive ~~address, if changed since last report.~~offices)

~~Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions~~ (~~see General Instruction A.2. below~~412): 227-2001

(Registrant’s telephone number, including area code)

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

¨	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 8 2.0103 ~~Other~~Creation ~~Events.~~of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

InOn April 28, ~~2005~~2006, the ~~New~~Company ~~Zealand~~entered ~~Commerce~~into ~~Commission~~an ~~(the~~amendment ~~“NZCC”)~~to ~~filed~~its aexisting ~~Statement~~credit ofagreement ~~Claim in the High Court of New Zealand against a number of corporate and individual defendants~~to, ~~including~~among ~~Koppers~~other ~~Arch Wood Protection (NZ) Limited (“KANZ”)~~things, ~~Koppers~~provide ~~Arch~~for Investments Pty Limited (“Koppers Arch Investments”), Koppers Australia Pty Limited, TPL Limited, Nufarm Limited, Nufarm Australia Limited, Osmose New Zealand Limited, Osmose Australia Pty Limited and a ~~number of current and former employees of such companies. This followed an investigation by the NZCC into the competitive practices of the wood preservative~~$40 ~~industry~~million interm ~~New~~loan ~~Zealand. The Statement of Claim contains a number of separate causes of action relating~~ to ~~alleged~~facilitate ~~violations of~~ the ~~New~~purchase ~~Zealand Commerce Act~~ of ~~1986~~certain ~~(the~~assets ~~“Act”).~~related ~~The NZCC seeks, among other things, (i) pecuniary penalties for each cause of action in an unspecified amount pursuant~~ to the ~~Act,~~coal ~~(ii)~~tar ~~injunctions~~business ~~restraining~~of ~~defendants~~Reilly ~~from further anticompetitive conduct~~Industries, ~~(iii)~~Inc. ~~orders barring the named individual defendants from certain future corporate positions~~ and ~~(iv)~~ ~~reimbursement~~increase ~~of legal costs. The Act provides that~~ the ~~NZCC~~revolving ~~may~~credit ~~seek~~facility ~~pecuniary penalties against each corporate defendant for each cause of action not~~ to ~~exceed the higher of (i)~~ $~~NZ10,000,000,~~125 ~~(ii)~~million ~~three times the commercial gain~~ from ~~the contravention~~$115 ~~or (iii) 10% of the turnover of the corporate defendant and all interconnected companies~~million. ~~KANZ~~The isamendment ~~seeking~~ to ~~cooperate with~~ the ~~NZCC.~~credit ~~Although~~agreement it is furnished ~~likely that penalties will be ordered by the High Court~~ as aexhibit ~~result of the proceedings, we do not currently have enough information to determine the amount of any such penalties~~99.1 Such penalties, if ordered, could have a material adverse effect on the business, financial condition, cash flows and results of operations of those companies. Except as set forth above, we are not currently aware of any other claims (civil or governmental) related to ~~competitive~~this ~~practices~~Current inReport ~~New Zealand. Such other claims, if filed and resolved unfavorably, could have a material adverse effect~~ on ~~the~~Form ~~business,~~8-K ~~financial condition, cash flows~~ and ~~results~~is ofincorporated ~~operations~~by ofreference ~~KANZ and its interconnected companies~~herein.

Koppers Arch Wood Protection (Aust) Pty Limited (“Koppers Arch Australia”) has also made an application for leniency under the Australian Competition and Consumer Commission’s (the “ACCC”) policy for cartel conductItem 9.01 ~~The~~Financial ~~ACCC~~Statement has granted immunity to Koppers Arch Australia, subject to the fulfillment of certain conditions, such as, but not limited to, continued cooperation. If the conditions are not fulfilled, Koppers Arch Australia may be penalized for any violation of the competition laws of Australia. Such penalties, if assessed against Koppers Arch Australia, could have a material adverse effect on its business, financial condition, cash flows and ~~results of operations~~Exhibits.

KANZ and Koppers Arch Australia are majority-owned subsidiaries of Koppers Arch Investments, which is an Australian joint venture owned 51% by World-Wide Ventures Corporation (a subsidiary of ours) and 49% by Hickson Nederland BV. KANZ and Koppers Arch Australia manufacture and market wood preservative products throughout New Zealand and Australia, respectively.


Number	Description	Method of Filing
99.1	Second Amendment to Credit Agreement By and Among Koppers Inc., each of the Guarantors, the Banks (as defined in the Credit Agreement), PNC Bank, National Association, as Administrative Agent, National City Bank of Pennsylvania, as Syndication Agent, and Citizens Bank of Pennsylvania, Bank of America, N.A., and First Commonwealth Bank, as Co-Documentation Agents.	Filed as Exhibit 99.1 to Form 8-K of Koppers Holdings Inc. dated April 28, 2006 and incorporated by reference thereto

SIGNATURES

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 hereunto duly authorized.

Dated: ~~April 27~~May 3, ~~2005~~2006

~~Koppers~~KOPPERS ~~Inc~~INC. By: /s/ ~~Steven~~Brian RH. ~~Lacy~~McCurrie ~~Steven~~Brian RH. ~~Lacy~~McCurrie ~~Senior~~ Vice President, ~~Administration,~~and ~~General~~Chief ~~Counsel~~Financial ~~and Secretary~~Officer

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