Where is the origin of Haodangjia sea cucumber?

Rongcheng city, Weihai. Haodangjia Sea Cucumber Tianhaiwan Natural Marine Ranch is located in Rongcheng City, Weihai, belonging to the Yellow Sea, with pure water quality and no pollution to the environment. Haodangjia Group Co., Ltd. is located in Rongcheng, the easternmost part of Shandong Peninsula, and was founded in 1978. After more than 30 years of unremitting efforts, it has developed into a large-scale national enterprise group integrating offshore fishing, aquaculture, food processing, thermoelectric papermaking, coastal tourism and other industries. The Group now has more than 50 directly affiliated enterprises, including domestic A-share listed companies 1 company, with more than 65,438+00,000 employees and total assets of 3.5 billion yuan.