Purchased ECSs do not support region change.
If you need to migrate an existing ECS to another region, you need to purchase a new ECS and select a destination region. When you purchase an ECS, we suggest that you choose the region that is closest to your business requirements to reduce network latency and data transfer time.
If you need to change the region, you can migrate cloud servers through image migration. This method allows you to migrate existing cloud server systems, software, and data to new cloud servers, enabling the data migration between different two regions. For details about image migration, see the operation guidance for Sharing Specified Images.