 The second unit with pennant number 818 named Kunshan, entered service in December 2011.Some Chinese internet sources have claimed that this second unit is an all fiberglass construction boat, while the first was fiberglass superstructure mounted on low magnetic signature steel hull, because it took about half a decade for Chinese shipyards to master all fiberglass construction for boats of this size, but as with other claims about this class, all have yet to be verified by official or governmental sources.Built by Qiuxin Shipyard at Shanghai, Type 082II mine countermeasure vesselis known in the West as the Wozang-class.