CETC Energy Joint-Stock Co., Ltd.(SHSE:600877) added to Shanghai Stock Exchange Composite Index

CETC Acoustic-Optic-Electronic Technology Inc, formerly CETC Energy Joint-Stock Co Ltd, is a China-based company mainly engaged in the research and development, production, sales and technical services of lithium-ion power supplies. The Company's main products include space lithium-ion batteries and special lithium-ion batteries. The Company's products are mainly used in aerospace, automotive power, machinery, electronic control and other fields.