A Chinese artificial intelligence company called SenseTime said Monday it has postponed its $ 770 million initial public offering after its work for Beijing blacklisted it by the US government. The company said in a filing on the Hong Kong Stock Exchange that it is “still committed” to completing the listing, but has not proposed a new schedule. It said that investors who applied to buy shares could receive a refund. SenseTime is one of many Chinese companies that has drawn condemnation from US officials and human rights groups for helping the Chinese government with its rapidly growing and expanding…