YKK, the world's largest manufacturer of zippers, is reportedly planning to invest $88 million in its Vietnamese factory to raise its annual production by 30 percent to 10 billion units by the end of 2016 and to double it by 2017. The additional capacity will become available by November 2015 and will be primarily used to make fasteners for casual and sports apparel. The Japanese company reportedly decided to invest in Vietnam because of rising labor costs in China and in view of its Trans-Pacific Partnership with the U.S. and the free trade agreement being negotiated with the European Union.