Hua Hong Semiconductor, China’s second-largest contract chip manufacturer, plans to acquire equity interests in sister foundry Shanghai Huali Microelectronics for an undisclosed sum to consolidate resources and meet growing for demand for so-called legacy chips. On Monday, Hua Hong suspended trading of its shares on the Nasdaq-style Star Market of the Shanghai Stock Exchange for up to 10 days, as the proposed transaction announced on Sunday was subject to a review by the company’s board and the...