AI computing networks maker Ligent Technologies Inc. is seeking to raiseBloomberg Terminal as much as HK$5.7 billion ($727 million) in a Hong Kong initial public offering, adding to a surge of listings this year tied to the global artificial intelligence buildout.The Chinese company headquartered in San Jose, California is offering 172 million shares at HK$32.96 apiece, according to a filing to the Hong Kong stock exchange. Trading is expected to begin Sept. 22....