But the good times did not last long. At the end of 2000, wearing the gorgeous coat of "American" production, riding on the east wind of China's active entry into the WTO, two containers of 50 tons of American grapefruit entered from Tianjin Port and were still on the threshold of the WTO. The Chinese market has become a symbolic move by the Chinese government to open up the fruit market to the United States before joining the WTO, and consumers are flocking to it. Changshan Huyou returned to China for the first time 150 years after immigrating to the United States and concealed its historical origins under the name of grapefruit. For a time, Changshan Huyou was in a serious situation.

Zhejiang businessmen showed extraordinary ability to control the market at this time. In 2003, with the help of local governments, a large number of Changshan Huyou companies worked hard to expand the market and publicize the grapefruit, so that consumers quickly switched from American grapefruit to Changshan Huyou with the same quality and low price. In 2003, five companies including Liqing Fruit Industry were granted regional product protection for Changshan Huyou, which prevented the disastrous consequences of the American "grapefruit" rush to register "Changshan Huyou" in China and around the world. The annual sales of American grapefruit in the Greater China market dropped from the peak of 100 to 150 containers in 2002 to 10 to 25 containers in 2004, almost extinct, breaking the myth that foreign fruits will seize the Chinese fruit market; and with Liqing Enterprises led by the fruit industry have made Changshan Huyou go abroad and enter countries and regions such as the European Union, Canada, South Africa, and Southeast Asia. In just five years of competition, the market has been turbulent and ups and downs. What is intriguing is that "Changshan Huyou" is the only place where "grapefruit" is grown - the United States, although its price is more than five times that of China, even though China has joined the WTO. Perhaps we have to raise the price several times more to enter the U.S. market under trade protection in small quantities.

The success of Changshan Huyou and grapefruit in the market competition under the background of WTO has become an example of making good use of the double-edged sword of WTO, which has enhanced the competition for Chinese products, especially agricultural products, in the international market. confidence. The case was included in American MBA textbooks, and Changshan County Liqing Fruit Cooperative became the first Chinese “agriculture, rural areas, and farmers” (rural areas, farmers, and agriculture) enterprise to be included in foreign MBA textbooks.

Changshan Huyou is a unique local citrus variety in Changshan County, Zhejiang Province. It is a natural hybrid of grapefruit and other citrus and has a history of 100 years of cultivation. Changshan Huyou has remarkable characteristics such as resistance to barrenness, cold resistance, storage resistance and unique flavor. From 1986 to 1989, it was awarded the National Quality Agricultural Products Award in the National Citrus Competition for two consecutive times. In February 1991, it was awarded the title of "Green Food Certificate" by the Ministry of Agriculture. Winning the gold medal, Changshan County was named the "Hometown of Changshan Huyou" in 1996. In 1998, the "Changshan Huyou" certification mark was approved for use by the State Trademark Office, becoming the first agricultural product certification mark in Zhejiang Province. In 2003, Changshan County obtained the original regional product protection of Changshan Huyou. Five companies, including Liqing Fruit Professional Cooperative, have been authorized by the State Administration of Quality Supervision, Inspection and Quarantine to use product protection marks of origin.

Changshan Huyou has been highly praised by central leaders and famous authoritative fruit experts across the country for its unique quality. Many horticultural experts in my country call Changshan Huyou "China's No. 1 tangerine" and an excellent variety with promising development prospects. Among them, the American "grapefruit" was transplanted to Florida by the Portuguese around 1830.

Currently, Changshan Huyou has built a commercial base of more than 100,000 acres, with an annual output of 140,000 tons. The industrialization of Huyou is developing rapidly, and a one-stop service of scientific research, production, processing and sales has been formed. More than ten kinds of Huyou juice, gizzard, preserved fruit, fruit tea, jam, Huyoubao, edible flavors and other products are exported to Shanghai and Beijing. and other major cities, deeply favored by consumers. Among them, Liqing Huyou made great contributions to the survival of Changshan Huyou in the country and its occupation of the international market on the eve of China's accession to the WTO and during the early Sino-US grapefruit war.