the construction of the first vessel began in july 2007 with the ceremony of "start of lamination" which, for vessels built of composite materials, equals to the steel cutting ceremony. the construction of the second vessel was started in march 2008 and the third vessel in february 2009. the construction of the vessels was delayed by one year after the shipyard was devastated by a flood in early 2009. two more floods occurred in late 2009, but the damage was not as extensive.