Topaz to complete structural work and outfitting of two crew/cargo vessels. UAE, Abu Dhabi, 6 February, 2012: Renaissance Services (Muscat Stock Exchange: RNSS) subsidiary Topaz Energy and Marine, a leading provider of offshore support vessels and engineering services, has been awarded a contract from GAC Group to provide completion services for two crew/cargo vessels. Topaz’s NicoCraft shipyard in Abu Dhabi has been awarded the contract based on the shipyard’s capabilities and established track record.