An authorized distributor is a supplier who is legally authorized by a brand owner to distribute their items directly to consumers, or to retailers. Brand owners establish authorized channels of distribution in order to maintain the value and trustworthiness of their brand. An unauthorized distributor is a supplier who has not been granted permission by a brand owner to sell or distribute items. All suppliers listed in the SaleHoo Supplier Directory are authorized distributors of items they offer. Re-selling items from unauthorized distributors can tarnish your reputation, and can eventually land in lawsuits due to copyright and trademark issues. Should this happen on eBay, you can refer to this guide here on how to resolve concerns with verified rights owners.
One simple way to avoid using unauthorized distributors is to avoid buying branded items such as Nike and Dior from Chinese manufacturers. Chinese manufacturers or suppliers are best used to source non-branded items.