Huangyan Mandarin has the good quality for its sweetness, deliciousness, mellifluence and zest. It is planted widely in Huangyan. According to relevant document records in 1932, mandarin orchards distributed widely along both sides of the East Estuary, Yongning River, West Jiang, Nanguan River, Dongguan River and their tributaries. Before the Anti-Japanese Invasion War, the planting area in Huangyan County was about 0.02 million mu. Since 1937, the Japanese invasion on China coastal areas had brought the disaster to Huangyan Mandarin. In 1946, the mandarin output was recovered to the level before the war and reached 385,000 dan. On the eve of the Liberation, the mandarin planting area in Huangyan County was about 22,000 mu. After the Liberation, the Party and the government attached great importance on the recovery and development of the mandarin production by formulating a series of policies and adopting effective measures. In 1951, China National Native Produce Corporation established a Mandarin Purchase Station in Huangyan for the mandarin market. In 1952, the 68,614-dan mandarin was firstly exported to the Soviet Union, in a bid to explore the international market. For strengthening the study and management of the mandarin production, the Huangyan County Mandarin Guidance Agency and the Native Produce Division (the Huangyan County Mandarin Administrator Authority; its name was later changed to Native Produce Bureau and Forestry & Local Specialty Bureau) were established in Huangyan under the support of the Zhejiang Provincial Agriculture & Forestry Department. Since then, the history of Huangyan mandarin has turned into a new chapter.