In the 1970s, Fatty Ding opened a travel agency here, and successively bought several surrounding buildings, forming a small commercial plaza. His travel agency provides China people with air tickets and visas from the United States to Chinese mainland, Taiwan Province Province and Hongkong, and provides China people with transportation, accommodation and tour guides for visiting relatives, studying abroad and emigrating to the United States. Fatty Ding's business is booming, attracting many other China businessmen to open restaurants, supermarkets, barbershops, gold shops and pharmacies. , forming a prosperous China business circle. Since 1980s, Dingpangzi Square has become the most famous place in the Chinese community in Los Angeles, and it is also a must-see for many China tour groups. At that time, there were no less than 65,438+000 long-distance buses to and from Dingpangzi Square every week, which transported China people from south to north to all parts of the United States.