If a personal invention patent is transferred to a company in a different place, what procedures and materials do the companies in a different place need to go through?

my country's patents are valid throughout the country (but not including Hong Kong, Taiwan and Macau), so the procedures are the same whether they are transferred to a foreign company or a local company.

Transfer procedures:

1. Both parties sign a transfer agreement to clarify their rights and obligations, especially the amount of the transfer fee and the time for payment.

2. Change the patent right after signing the transfer agreement (if you don’t know how to do it yourself, you can entrust a patent firm to represent you)