UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date: April 22, 2008 1:00 P.M.
Form: S-3
CIK: 0001262823
Company Name: WESTLAKE CHEMICAL CORP
File Number: 333-150206
CIK: 0001262824
Company Name: GEISMAR HOLDINGS INC
File Number: 333-150206-27
CIK: 0001262826
Company Name: GVGP INC
File Number: 333-150206-26
CIK: 0001262827
Company Name: NORTH AMERICAN PIPE CORP
File Number: 333-150206-25
CIK: 0001262830
Company Name: VAN BUREN PIPE CORP
File Number: 333-150206-24
CIK: 0001262844
Company Name: WESTLAKE PETROCHEMICALS LP
File Number: 333-150206-23
CIK: 0001262845
Company Name: WESTLAKE POLYMERS LP
File Number: 333-150206-22
CIK: 0001262846
Company Name: WESTLAKE PVC CORP
File Number: 333-150206-21
CIK: 0001262847
Company Name: WESTLAKE RESOURCES CORP
File Number: 333-150206-20
CIK: 0001262849
Company Name: WESTLAKE STYRENE LP
File Number: 333-150206-19
CIK: 0001262850
Company Name: WESTLAKE VINYL CORP
File Number: 333-150206-18
CIK: 0001264129
Company Name: WESTLAKE VINYLS INC
File Number: 333-150206-17
CIK: 0001432147
Company Name: Westlake Ethylene Pipeline CORP
File Number: 333-150206-16
CIK: 0001432144
Company Name: Westlake NG III CORP
File Number: 333-150206-15
CIK: 0001432146
Company Name: Westlake NG IV CORP
File Number: 333-150206-14
CIK: 0001432145
Company Name: Westlake NG V CORP
File Number: 333-150206-13
CIK: 0001262825
Company Name: NORTH AMERICAN BRISTOL CORP
File Number: 333-150206-12
CIK: 0001262828
Company Name: NORTH AMERICAN PROFILES INC
File Number: 333-150206-11
CIK: 0001344938
Company Name: Westlake NG II, CORP
File Number: 333-150206-10
CIK: 0001323939
Company Name: Westlake International CORP
File Number: 333-150206-09
CIK: 0001263828
Company Name: WESTLAKE VINYLS CO LP
File Number: 333-150206-08
CIK: 0001262852
Company Name: WPT LP
File Number: 333-150206-07
CIK: 0001344936
Company Name: Westlake NG I, CORP
File Number: 333-150206-06
CIK: 0001262831
Company Name: WESTECH BUILDING PRODUCTS INC
File Number: 333-150206-05
CIK: 0001262834
Company Name: WESTLAKE CHEMICAL INVESTMENTS INC
File Number: 333-150206-04
CIK: 0001262840
Company Name: WESTLAKE DEVELOPMENT CORP
File Number: 333-150206-03
CIK: 0001262841
Company Name: WESTLAKE MANAGEMENT SERVICES INC
File Number: 333-150206-02
CIK: 0001262842
Company Name: WESTLAKE OLEFINS CORP
File Number: 333-150206-01