eSign

1. Service Introduction

eSign CA is a legal electronic certification service institution in mainland China licensed by the Ministry of Industry and Information Technology, providing digital certificate issuance and management services for electronic signature scenarios. By issuing digital certificates that comply with China’s “Electronic Signature Law” to signatories, eSign CA supports the legal validity of electronic signature generation, signature verification, and signing behavior, serving as a core trust service provider (TSP) within China’s electronic signature system.

2. Location

eSign CA is operated by Hangzhou Tiangu Information Technology Co., Ltd., with registration and service areas located within the People’s Republic of China, providing digital certificates and electronic certification services to users in mainland China.

3. Signature Level Support

Under the legal system of mainland China, the digital certificates provided by eSign CA support the generation of reliable electronic signatures compliant with China’s “Electronic Signature Law”, with legal effect equivalent to the AES (Advanced Electronic Signature) concept level within the EU eIDAS system.

Explanation:

• In the legal system of mainland China, there is no QES (Qualified Electronic Signature) classification defined under eIDAS.
• The certificates issued by eSign CA are used to generate “reliable electronic signatures”, which have evidentiary effect in judicial practice.
• This signature level should not be labeled as QES in mainland China scenarios.

4. Dependency Requirements

• Must possess a Chinese mainland-recognized ID card to pass identity verification.

5. Compliance Explanation

eSign CA is an electronic certification service institution licensed by the Ministry of Industry and Information Technology of the People’s Republic of China, and its digital certificate services comply with:

• “Electronic Signature Law of the People’s Republic of China”
• National cryptographic management and electronic certification-related regulatory requirements

Based on the digital certificates issued by eSign CA, the electronic signatures generated within the judicial jurisdiction of mainland China have legal effect and can be used as valid electronic evidence.