China, with a 34.3% market share, remained the largest buyer of Vietnamese wild caught and farm raised shrimp and prawns for the January-May period, according to statistics released by the Vietnam Association of Seafood Exporters and Processors (Vasep).The US was the second largest importer of black tiger shrimp from Vietnam, with a proportion of 17.4%. Black tiger sales to the US reported a good result, with raw material supply on par with competitors.Vietnam shrimp exporters have shifted production in favor of black tiger shrimp, a move expected to counter dwindling raw materials of other shrimp and prawn species in hopes of keeping the industry afloat.The third and fourth largest export markets were the EU and Japan with market shares of 18.9% and 17%, respectively.