UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date:	May 12, 2010 5:30 P.M.

Form:	S-4
CIK: 0000916075 Company Name: KOPPERS INC File Number: 333-165108
CIK: 0001315257 Company Name: Koppers Holdings Inc. File Number: 333-165108-07
CIK: 0001275824 Company Name: WORLD WIDE VENTURES CORP File Number: 333-165108-06
CIK: 0001275822 Company Name: KOPPERS CONCRETE PRODUCTS INC File Number: 333-165108-05
CIK: 0001275821 Company Name: CONCRETE PARTNERS INC File Number: 333-165108-04
CIK: 0001053719 Company Name: KOPPERS DELAWARE INC File Number: 333-165108-03
CIK: 0001470295 Company Name: Koppers Asia LLC File Number: 333-165108-02
CIK: 0001485585 Company Name: Koppers Ventures LLC File Number: 333-165108-01