China Telecom, June 9 (FAP)-- the three major telecom operators changed in late trading, and the combined bidding prices of China Telecom, China Mobile, and China Unicom rose sharply. China Telecom soared 6.57%, and the bidding rose nearly 3%. According to the website of China Securities Index Co., Ltd., the adjustment of index samples such as SSE 50, SSE 180, SSE 380 and Kechuang 50 will take effect after the market closes on June 9, 2023.