Tranche Update on Asiainfo Security Technologies Co.,Ltd.'s Equity Buyback Plan announced on February 27, 2023.

Asiainfo Security Technologies Co Ltd is a China-based company mainly engaged in national network security software publishing. The Company's product system mainly includes digital trust and identity security product system, endpoint security product system, cloud network edge security product system and network security service system. The Company also engages in businesses related to cloud network virtualization basic software product system. The Company's products and services are used in key information infrastructure industries such as telecom operators, finance, government, manufacturing, healthcare, energy, and transportation.