Hi Sri.
If I understand correctly, you want to report the Assets without the compounded Company code in the key?
This is only possible if the users restrict the report to a particular Company code, because 1 particular Asset may exist in multiple Company codes, hence, if you do not specify the Company code, you will see it as part of the asset key.
The alternative to this is to implement what Bhavin is suggesting: an Asset infoobject that is not compounded to Company code.
Another idea is to show the text of the assets, instead of the key values - here I am assuming that an asset will have the same description if it exists in multiple Company codes...
Regards
Jacob