It is illegal for shopping malls to advertise with the brand LG. According to the query of relevant public information, the mall has not obtained authorization or cooperative relationship from LG Brand. Using LG Brand in advertisements will constitute infringement and infringe on LG Brand’s trademark rights. Trademarks refer to marks used on goods to distinguish between different products. The company's products and shopping malls use the LG brand trademark in advertisements, which will mislead consumers into thinking that the shopping mall is related to the LG brand, thus affecting the commercial interests of the LG brand.