CETC Acoustic-Optic-Electronic Technology Inc. engages in the research, development, production, sale, and service of lithium-ion batteries. The company also provides battery assembly and electronic components. Its products are used in aerospace, aviation, communications, ships, vehicles, and other fields. The company was formerly known as CETC Energy Joint-Stock Co.,Ltd. and changed its name to CETC Acoustic-Optic-Electronic Technology Inc. in November 2021. CETC Acoustic-Optic-Electronic Technology Inc. was founded in 1875 and is based in Tianjin, the People's Republic of China.