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R. J. Daum Construction CO

11581 Monarch St, Garden Grove, CA 92841

Spec Services, Inc.

10540 Talbert Ave, Fountain Valley, CA 92708

Boyle Engineering CORP

Po Box 7350, Newport Beach, CA 92658

Concept Technology, Inc.

895 Dove St, Newport Beach, CA 92660

Hyundai America Technical Center, INC

Po Box 20850, Fountain Valley, CA 92728