Founded in 1985, Overseas International Travel Service has more than 800 employees, won the title of "Top 100 Travel Agencies in China" for many years, and has been engaged in outbound travel wholesale business for more than 20 years, making it one of the travel agencies with the longest history of outbound travel wholesale in China. As a powerful travel agency in Shenzhen, CITS has won honors such as China's Top 10 Outbound Travel Wholesalers, Guangdong National Leisure Tourism Demonstration Unit, Pacific Asia Tourism Organization Award, and "Costa" Cruise Sales Champion in South China.

Overseas CITS mainly conducts outbound wholesale business in Southeast Asia, Hong Kong and Macao, Japan and South Korea, cruises, Europe, Africa, the Middle East, Australia and New Zealand, island tours, etc., and organizes and receives more than 500,000 tourists every year, and a number of routes have been selected as "2012 Shenzhen Quality Tourism Routes" by Shenzhen Municipal Bureau of Culture, Sports and Tourism. In the field of Thailand tourism, Overseas CITS has also obtained the only "Thailand Safe Tour" quality certificate issued by the director of the National Tourism Administration of Thailand.

"Nanyang Style" is the core brand of overseas international travel services, focusing on Southeast Asian tourism products, attracting nearly 200,000 tourists to Southeast Asia every year. In recent years, in addition to further improving the previous zero self-pay quality travel products, Nanyang Style has also launched some quite novel tourism products, such as "Menu Thailand" and "One Meter Sunshine" and other Thai tour products, the former by the group of tourists to agree on the itinerary, choose the journey attractions, food, travel agencies are responsible for arranging travel attractions, transportation, tour guides, accommodation, catering, etc., the price is much cheaper than customized tourism, but it fully guarantees the freedom of travel. One meter of sunshine is limited to single people aged 18-35 years old, integrating dating and travel, and will arrange interactive game projects for group members every day, so that participants can also make some like-minded friends when playing. In addition, cruise tourism is also the fist product of overseas international travel, the same cruise ship under the same cabin, compared with the new scenery has a certain price advantage, popular with tourists.

However, in general, the travel routes of overseas international travel services are not rich enough, and in the case of group formation, there are both self-organized groups, such as Thailand, the United States, Australia, New Zealand, Russia and other outbound travel products, as well as grouping. There are more than 100 stores. The online experience is more general, the official website tourism products are few, Nanyang Tourism Network is the website of Nanyang Customs, and the travel routes displayed are mainly in Southeast Asia. In addition, there is the official app "Help Tour", which is currently the most complete and fastest online channel with the fastest update speed.