Why is Yanjing Houdao only sold in Nanchong?

Beijing Houdao Hotel Co., Ltd. was established on June 22, 20 1 1. The legal representative is Pan, and the business scope of the company includes: accommodation; Retail prepackaged foods; Hotel management; Conference services; Enterprise management consulting; Catering management; Tourism information consultation (excluding intermediary services); Organize cultural and artistic exchange activities (excluding performances), etc. Yanjing is beer, to be honest, it's a brand name, canned, and a can. In other words, Yanjing has a can of "honest" beer.