Attachments to a business plan are more than just a business license. Attachments to a business plan include business licenses, marketing plans, legal documents and agreements, and documents proving the progress of the project, etc. These attachments can help entrepreneurs better articulate their business plans, protect their intellectual property rights, and show the progress of the project. When writing a business plan, entrepreneurs should choose the appropriate attachments according to the actual situation and ensure the authenticity and completeness of the attachments.