Cha Yan Yuese and Cha Yan Guan Se are dispute cases involving product standards and trademark use in the tea industry.

The tea beauty incident originated in 2016. A Hangzhou tea company called "Pin Yue Mingcha" sued Beijing's "Tea Beauty" trademark infringement in the Guangzhou Court. The company stated that "Pin Yue Mingcha" is its own brand, and the "Cha Yan Yuese" products it distributes also belong to this brand. However, the products sold by "Cha Yan Guan Se" in Beijing also use the name "Cha Yan Yuese" and claim that its trademark has been registered in 2013. There was a dispute over the rights and interests between the two brands. Finally, after multiple trials, the Guangzhou Intermediate People's Court ruled in 2018 that the defendant should stop using the "Cha Yan Yuese" trademark and compensate the plaintiff for economic losses and reasonable expenses totaling RMB 200. Ten thousand yuan.

The Cha Yan Guan Se incident refers to the fact that in 2019, another company named "China Life" filed a lawsuit with the Beijing Court claiming that it also owned the "Cha Yan Guan Se" trademark and found that many Merchants use the "Cha Yan Guan Se" logo on their products. After the trial, the court held that the trademark should be used for products of different categories, and that the trademark could not be deemed to be fraudulent just because the trademarks were the same, and ultimately rejected the plaintiff's lawsuit.

Generally speaking, the Chayan Yuese case focuses on the issue of trademark infringement, while the Chayan Guanse case focuses more on the legality of the trademark, with a more obvious meaning of industry supervision.