I think you'd have to do this via two exports.
Export the RAW with File Type set to Original
Export the same photo with File Type set to JPG.
If you want you original image file "Copied" to another drive or 'Backup' location, then it is "two Exports"- User Presets make this easy!
If you export the jpg to the Export Location- "same folder as original photo" you will have both files (jpg + original) "side by side" in the existing folder, without the need to export a copy of the original.
Many thanks, actually it was quiet easy.
Thanks dj_paige !
Thanks too wobertc, I created 2 user presets as you suggested.