Optimarin has consolidated its position within the EX approved ballast water treatment (BWT) segment with a 10 vessel contract from Atlantis Tankers Group and its management arm Armona Denizcilik, the company announced. The Norwegian BWT specialist will now provide its solution to two newbuildings and the eight existing vessels in the Turkish controlled fleet. Optimarin is the first UV system supplier to pass the USCG’s marine water tests, with full USCG approval expected this spring.