Image Source : China Visual BEIJING, August 29 (TMTPOST) — China's largest and most important chipmaker SMIC planned to build a new 12-inch wafer foundry line in Tianjin with a planned capacity of 100,000 wafers per month and the 28nm to 180nm process technology, the company announced on the evening of last Friday. The total investment of the project is USD 7.5 billion. SMIC, together with Tianjin Xiqing Economic Development Co Ltd and Xiqing Economic-Technological Development Area Management Committee, signed the "Framework Agreement for Cooperation on SMIC Tianjin 12-inch Wafer Foundry Production Line Project". According to the Agreement, SMIC intends…