In Vietnam, comparative advertising is subject to the following regulations, among other things:

• An advertisement must not contain direct comparison in terms of pricing, quality, and efficiency between the advertised products and products of other producers. It is not clear whether this prohibition only applies to direct reference to other producers or also to an implied reference. Therefore, references to logos, trademarks, tradenames and unique product features of other producers could arguably be viewed as direct comparison with such other producers. Use of mocked-up product sample to represent a generic type of product is possible as it does not refers to any specific producer.