The difference between genuine and pirated: the trademark steel seal of pirated gold bars belongs to well-known trademark theft. The purity stamp "Au999.9" of pirated gold bars is fake, and the actual purity is less than 999.9. Chow Tai Fook gold bars sold by Chow Tai Fook Gold Store are generally genuine, while those sold by other gold stores are generally pirated.

If the steel seal on the gold bar has no trademark logo, or only a trademark logo but no Au999.9, it is generally non-standard gold bar or adulterated gold bar. Not genuine gold bars, nor pirated gold bars.