Exhibit 99.1 Contact: Dan Boehle EVP, Chief Financial Officer dan.boehle@ttmtech.com 714-327-3079 TTM Technologies, Inc. Reports Third Quarter 2025 Results Santa Ana, CA – October 29, 2025– TTM Technologies, Inc. (NASDAQ: TTMI) ("TTM"), a leading global manufacturer of technology products, including mission systems, radio frequency ("RF") components, RF microwave/microelectronic assemblies, and technologically advanced printed circuit boards ("PCB"s) today reported results for the third quarter 2025, which ...