The procedures for shutting down government and enterprises by Inner Mongolia Telecom Big Data may be different, and the specific situation needs to be consulted with Inner Mongolia Telecom Company. Generally speaking, the following materials may be required for the closing procedure:

Copy of enterprise business license: A copy of enterprise business license is required.

Shutdown application: it is necessary to fill in the shutdown application and fill in the relevant information according to the requirements of the application.

Copy of ID card: A copy of the ID card of the person in charge of the shutdown procedure is required.

Payment voucher: a payment voucher that needs to be prepared to pay related expenses.

Other relevant materials: Other relevant materials may be needed according to specific circumstances.

I suggest you contact Inner Mongolia Telecom Company for specific procedures and required materials.