Smartphones have their own mobile operating system. The first smartphone to find a widespread market was the Blackberry, but that quickly lost ground after Apple introduced the iPhone in 2007. That was followed by smartphones powered by Google’s Android mobile operating system.

AAC, which counts Apple among its biggest clients, posted a 72 per cent increase in net profit for the three months ended March 31 to 1.06 billion yuan. Photo: AFP

AAC posts record profits a day after short-seller attack

AAC Technologies, the Apple supplier newly targeted by prominent US short-seller Gotham City Research, posted record first-quarter earnings while predicting further room for growth in its profit margin.