Taiwan Semiconductor Manufacturing Co. posted a better-than-projected 54% rise in quarterly earnings after strong sales of Nvidia Corp. AI chips offset a sagging mobile industry.

The main chipmaker to Nvidia Corp. and Apple Inc. reported September-quarter net profit of NT$325.3 billion ($10.1 billion), versus an average estimate for NT$299.3 billion. That followed a previously reported 39% climb in revenue during the period.