Chang Jang County is located in the northwest of Island of HaiNan with a total area of 1,596 square kilometers and a population of 240,000, of which Li-people accounts for 1/3.

Chang Jang County abounds in many kinds of resources. There are some large-sized mineral enterprises like Sea-mineral Company, State-invested cement plant, Huang Sheng cement plant and so on. In particular, the Shi Lu iron ore is the number-one in terms of iron content Asia with the highest grade of 68% and a accumulatively-prospected and identified storage of 404 million ton. Ba Wang Pick Tropical Forest is a state nature reserve region, in which lives the Nomascus concolor, a famous and rare specie of animal that is facing extinction and is subject to protection. It also boasts lots of scenic sites and cultural landscape for tourism, such as Qi zi Wan, Huang Di Dong, Jun Ling Wang Miao, Zhao Ding’s Tomb and so on. A lot of known tropical fruits like mango and Perfume pineapple, sell well both home and abroad. Due to its distinctive resources, Chang Jang County is reputed as “Home of mango””city of Steel and iron”, and “capital of cement”.

Dan Zhou is located in the northwest of Hainan Island, geographic coordinates of latitude 19 ° 11'-19 ° 52 ', longitude 108 ° 56'-109 ° 46'. It is abounded on the east by the Lingao county and Chengmai county, on the southeast by the Qiongzhong county, on the south by Baisha county, on the southwest by the Changjiang county. Danzhou, known as the Dan ears County in ancient, is one of the Hainan’s two counties which were first built in the Han Dynasty. There are many monuments in Dan Zhou, and most of them are before the Song dynasty, such as the Han Fubo wells, in town and SU's College, etc. Dan Zhou customs are honest and rugged, ancient customs are still exist. Because Su Dongpo enlightened shipwreck education here so that people here love composing poems and couplets, respect for teachers, then Dan Zhou is known as "poetry Hyangga Sea”. Dan Zhou tune sounds unique and is deeply liked by the local people and every mid autumn day, they will hold a singing competition. Dan Zhou’s dialect is very complicated, there are Hakka, Cantonese, military, then, the village if the temporary high, then, the Lebanese dialect words, etc., reflecting the characteristics of migrants in Hainan, but also demonstrates the very different with the eastern part of folk customs.

There are Dongpo College, Dan Zhou ear city sites, white horse, and excellent wave Yongquan Temple, South China Tropical Botanical Garden, Longmen Mountain Dew, Lan Yang Hot Spring in Dan Zhou. It is a number of natural landscapes, rivers and lakes, agriculture, garden scenery, historical cultural landscape that makes Dan Zhou become a leisure and holiday resort. Also, there is Special Administrative Region of the SAR - Yangpu Economic Development Zone.