Primoris Services Corp, trading under ticker RPSD, filed an S-1/A registration statement amendment with the SEC on August 28, 2006, marking an early stage of its path to public markets through the SPAC structure. The vehicle targeted the construction and infrastructure services sector, an industry that encompasses heavy civil, utility, and specialty contracting work across North America. The 2006 filing places it among the pre-financial-crisis wave of blank-check companies that helped revive SPAC activity in the mid-2000s. Primoris Services Corporation ultimately became a publicly traded infrastructure contractor and continues to operate today. For complete filing history, deal terms, and sponsor data on RPSD and thousands of other SPAC transactions, sign up for full access at SpacDesk.