Welcome to the forum.
It is without doubt Chinese, and parts might be a problem, as they frequently are. Does not the folks you bought it from handle the parts? If not you may be up the proverbial creek without the proverbial paddle.
You might look it over carefully to see if it has a manufacturer's sticker, (it is supposed to) and use that info to search for parts.
You could also try one of the Chinese parts sellers online to see if they can help. It might just be private brand made by one of the larger Chinese manufacturers.
http://www.BuyAtvsOnline.comhttp://www.goscoot.com/parts.aspI wish I had a dollar for every purchaser of Chinese quads who couldn't find parts for it, I could retire.
