The price department shall, jointly with the tobacco monopoly department, select some cigarette brands to set prices, which are divided into A, B, C and D cigarettes, and then reduce prices in turn. That's about it. Those cigarettes with 100 yuan per cigarette are Class A cigarettes; 50 to 100 is Class B; 20 to 50 are Class C; 20 yuan/Article below is Grade D..
Zhongnanhai is produced by Beijing Zhongyan, and 5mg and 8mg belong to mixed cigarettes. Zhongnanhai is the residence and office of the head of state and cannot be used as a trademark in principle. But it is not illegal, because it is a brand created before the introduction of the trademark law.