There are Hisense (national well-known trademark), Aucma (national well-known trademark), Sanyuan brand electrical control components (national well-known trademark), Double Star celebrity brand sportswear (national well-known trademark), Tsingtao Brewery (national well-known trademark) and so on. Qingdao (Qingdao for short), formerly known as Jiaoao, also known as Qindao and Island City, belongs to Shandong Province. It is the world beer city, the world sailing capital, the first batch of coastal open cities in China, the national health city and the mega city. Qingdao is located in the south of Shandong Peninsula, bordering the Yellow Sea in the east and south, Yantai in the northeast, Weifang in the west and Rizhao in the southwest. The land area of the jurisdiction is 1 1282 square kilometers and the sea area is 12240 square kilometers. Qingdao, known as the Oriental Switzerland, is named after the ancient fishing village of Qingdao.