Lenovo Group, the world’s largest personal computer maker, said it is grappling with an unexpected blow from the latest US-China tariffs, even as robust demand for artificial intelligence (AI) products helped the company deliver strong annual results for the last financial year. The Beijing-based company reported on Thursday that revenue for the year ended March 31 climbed 21 per cent to US$69.1 billion, with net income rising 37 per cent to US$1.4 billion – results that are among the best...