Zhongji Innolight has attracted more than 30 cornerstone investors for its blockbuster initial public offering in Hong Kong, which could become the city’s biggest listing in seven years, according to people familiar with the matter. The Chinese maker of optical transceivers – which are widely used in artificial intelligence data centres – has already seen nearly half the base share offering for its IPO snapped up by major international and long-only funds including BlackRock, Temasek Holdings...