https://www.reuters.com/article/foxconn-results/apple-supplier-foxconn-sees-q4-revenue-slumping-on-chip-supply-shortage-idUSKBN2HX0MB >Taiwan's Foxconn, which assembles iPhones for Apple, said on Friday it expected revenue from its key smartphone business to slide more than 15% in the quarter ending December, hurt by the ongoing global shortage of components.