Customers experience Samsung's new flagship fold-screen phone Galaxy Z Fold5 at a Samsung sales store in Hangzhou, East China's Zhejiang province, Aug. 14, 2023. Costfoto | Nurphoto | Getty Images Samsung Electronics earnings are expected to plunge nearly 80% in the third quarter, according to analyst forecasts, as the company's biggest profit-driving segment — semiconductors — continues to come under pressure. The South Korean technology giant will issue earnings guidance on Wednesday. Analysts polled by LSEG expect operating profit of 2.3 trillion Korean won ($1.7 billion) for the September quarter, a 78.7% year-on-year decline. Revenue is expected to come in...