Jilin University Zhengyuan Information Technologies Co., Ltd. provides commercial cryptography technology and network security solutions in China. Its offerings include infrastructure products such as public key infrastructure, hardware security modules, and directory management systems; security support services including digital signature and timestamp servers, authentication gateways, and audit query systems; and security applications such as rock terminal security and electronic signature systems. The company also provides an LTE network security application solution, construction of national PKI certification systems, PKI technology solutions for customs business platforms, and security solutions for tax electronic bills based on PKI/CA. In addition, it offers security system planning, risk assessment, penetration testing, security consulting and integration, and industry application development services. Founded in 1999, the company is based in Beijing, China.