Semiconductor chips are seen on a printed circuit board in this illustration picture taken February 17, 2023. REUTERS/Florence Lo/Illustration/File Photo Purchase Licensing Rights, opens new tabSINGAPORE, March 16 (Reuters) - China's Hua Hong Group has developed advanced chip manufacturing technologies that can be used to produce artificial intelligence chips, four people familiar with the matter said, a major milestone in Beijing's efforts to boost tech self-sufficiency.The group's ​contract ch...