In 2008, Shandong Rongcheng Enterprise proposed that the local Shidao Fishing Port was the largest fishing port in Asia, and requested the State Trademark Administration to cancel the "Asia Fishing Port" trademark on the grounds that the registration content of the "Asia Fishing Port" trademark was false. . For a time, the issue of where the Asian fishing port trademark belongs has triggered a trademark defense war that attracts attention from all walks of life. Shandong people insist that the Asian fishing port belongs to Shandong and strongly demand that the relevant departments deprive the ownership of the Asian fishing port. Whether the largest fishing port in Asia belongs to Dalian or Shandong has aroused heated discussions on the Internet. The post titled "Defend Honor and Never Retreat" had a click-through rate of over one million. Dalian and Shandong people refused to give in to each other and started a war of words full of "oyster odor". Although the State Trademark Administration later rejected Shandong’s application, the competition for the “Asian Fishing Port” trademark was often raised again.