1. Official seal of the company: this is the most basic seal to confirm the authenticity and legality of the internship unit. Usually, the official seal of the company is the only official logo of the enterprise and institution, which has legal effect.
2. Chapter of Human Resources Department (or Personnel Department): In some large enterprises, the internship certificate needs to be stamped by the Human Resources Department or the Personnel Department. This is to ensure the authenticity and accuracy of the internship certificate, and also to reflect the importance that enterprises attach to interns.
3. Signature of the tutor or person in charge: In some internship processes, interns may have a tutor or person in charge directly, and their signature in the internship certificate can reflect the guidance, management and evaluation of interns during the internship process.