https://www.reuters.com/article/us-usa-trade-china-semiconductors/taiwans-umc-halts-rd-activities-with-chinese-semiconductor-firm-after-u-s-ban-idUSKCN1N51GD

Taiwan chipmaker United Microelectronics Corp said it will temporarily halt research and development activities with its Chinese partner Fujian Jinhua, days after the United States cut off the state-backed firm from U.S. suppliers.