This site lists this specific third item directly: manufacturer information — who makes the product and how to reach them.
This site is direct that a transparent label should name who makes the product and provide a way to reach them — worth checking your own bottle or the official site for this specific contact detail.
This site's own six-step buyer checklist separately recommends contacting the seller directly if label information is unclear — worth reading that step as only possible when this third checklist item, manufacturer contact information, is actually available.