thats a good question! it never occurred to me. i was wondering more if it were balanced by the seller. a lot of the CHRAs come advertised as "balanced", although mine made no mention of it.
by the price, i'd assume its a Chinese one. i looked back to see if i had a picture of the box and i did. definitely, not holset.
also just an fyi to prevent you from making my mistake. i ordered both a rebuild kit and a CHRA. don't do that. the rebuild kit is to rebuild the CHRA you have.