The strategic cooperation agreement between CHINA BEST Cybersecurity (000004.SZ) subsidiary and China Unicom Zibo Branch has expired and terminated.

Announcement from CHINA BEST Network Security (000004.SZ): The company's controlling subsidiary Shandong Zhongan Hengning Emergency Industry Group Co., Ltd. (referred to as "Zhongan Hengning") had previously signed an "Information Business Strategic Cooperation Agreement" with China United Network Communications Zibo Branch (referred to as "China Unicom Zibo Branch") in March 2022. The two parties integrated their respective strengths and engaged in strategic cooperation in artificial intelligence industry incubation, 5G informatization construction, and other areas. The agreement is valid for three years. During the validity period of the agreement, Zhongan Hengning and China Unicom Zibo Branch and its affiliated companies signed a total of three project contracts, with a total contract amount of 39.6546 million yuan (tax included). As of the announcement date, the effective period stipulated in the "Information Business Strategic Cooperation Agreement" has expired, and the agreement automatically terminated.