Workers at Foxconn are not selling white casings and other iPhone parts, a spokesman with associated firm Hon Hai insists. The refutation was made through a statement to the Taiwan Stock Exchange, as a response to claims that an American college student was able to tap connections at Foxconn to obtain white parts, then used to convert existing black iPhone 4s. Apple has so far failed to ship its own promised white iPhones, and is rumored to be abandoning the concept entirely.