Wistron is building additional capacity at its plant in Kunshan, China, which some market watchers believe may be used to fulfill smartphone orders placed by Apple, according to industry sources.

　　Wistron has recently announced plans to increase capex at its Kunshan plant by NT$2.86 billion (US$97.27 million) to build new capacity and fulfill demand for communications products.

　　Rumors in the IT market indicate that Wistron and Compal Communications will be new suppliers for Apple's iPhone and iPad, respectively, and will start supplying products to Apple in 2014. Wistron and Compal Communications both declined to comment about clients or orders.