Exhibit 99.1 UTStarcom Reports Unaudited Financial Results for First Half of 2023 Hangzhou, August 30, 2023— UTStarcom ("UT," "UTStarcom" or the "Company") (NASDAQ: UTSI), a global telecommunications infrastructure provider, today reported its unaudited financial results and a business update for the six months ended June 30, 2023 ("the first half"). Business Highlights: • Progress with China Unicom Research Institute on development of the Disaggregated 5G Transport Network Solution. UT continued work on Ph ...