On September 10, 2004, Huizhou Meicai Production and Marketing Association entrusted Guangdong Guosheng Intellectual Property Office Co., Ltd. to apply for collective trademark registration to the Trademark Office of the State Administration for Industry and Commerce under the name of "Huizhou" geographical indication. And was approved for collective trademark registration.

After the trademark registration, "Huizhou Meicai" refers specifically to the Meicai grown within the administrative area of ??Huizhou City. Its scope is within the administrative areas of Huicheng District, Huidong County, Boluo County, Huiyang District, and Longmen County. The use of the "Huizhou Meicai" trademark on plum vegetables grown in other areas or the illegal use of the "Huizhou Meicai" trademark is an infringement of collective trademark rights. The registrant may request the industrial and commercial administration authority to handle the matter, or directly file a lawsuit with the People's Court.