Exhibit 99.1 Tower Semiconductor Reports 2023 Fourth Quarter and Full Year Financial Results MIGDAL HAEMEK, ISRAEL – February 14, 2024 – Tower Semiconductor (NASDAQ: TSEM & TASE: TSEM) reports today its results for the fourth quarter and for the year ended December 31, 2023. Fourth Quarter of 2023 Results Overview Revenue for the fourth quarter of 2023 was $352 million as compared with$358 million for the third quarter of 2023. Revenue for the fourth quarter of 2022 was $403 million. Gross profit for the f ...