We can upload our key material from the AWS KMS console as follows:

1. Click on Choose file under Wrapped key material and select the EncryptedKeyMaterial.bin file.
2. Click on Choose file under Import token and select the import token we downloaded from KMS on the previous screen:

3. Leave the Key material expires option unchecked and click on Upload key material. You can choose this option if this is a requirement. The key is now ready for use.