1. The internship unit will provide the technical school with the salary payment details, and provide the technical school with the following necessary information: the intern's name, ID number, bank account number and other personal information, the internship unit's name, address, contact information, etc.

2. The technical school issues a formal invoice according to the information provided and the relevant tax regulations. According to the identity of the intern, it can be a general VAT invoice or a special VAT invoice.

3. When issuing an invoice, you need to indicate the intern's personal information, invoice type, invoice amount, invoice code, invoice number and other detailed information.