CUSIP No. 381370105 SCHEDULE 13DYorktown Avenue Capital, LLC • September 5th, 2007 • Water, sewer, pipeline, comm & power line construction
Company FiledSeptember 5th, 2007 IndustryThe undersigned, being duly authorized thereunto, hereby execute this agreement as an exhibit to this Schedule 13D to evidence the agreement of the below-named parties, in accordance with the rules promulgated pursuant to the Securities Exchange Act of 1934, to file this Schedule jointly on behalf of each such party.