Lishiwa Town Economic Development Zone is one of the national ports in Yunnan, located in the south of Dehong Prefecture, across the river from Jiugu Town, a major town in neighboring Myanmar. Wan Ding is A Dai's phonetic translation, which means the sun is at the top. With a total population of more than 20,000, a land area of 95.34 square kilometers and an urban population of only over 5,000, it is one of the smallest cities in China. Before World War II, Wan Ding was a little-known stockade. During World War II, because the Japanese army blocked all the sea lanes in China, Wan Ding became the base camp and material distribution center of the Chinese-American-British Coalition forces, and hundreds of thousands of China anti-Japanese expeditionary forces also entered and left the country from here. Wan Ding and Jiugu Town in Myanmar have a long history of free exchanges and friendly exchanges between border people.

Now, some Southeast Asian businessmen have gathered in Wan Ding, making Wan Ding a distribution center for cosmetics, jewelry, handicrafts, agricultural and sideline products, jewelry and jade articles in the United States, Japan, France, India, Pakistan, Nepal and Bangladesh, and a very busy border trade street. In the south of Wan Ding, on the river at the junction of China and Myanmar, there is a famous border bridge between the two countries-Wanding Bridge. Built in 1938, this bridge is the only land-based sea-crossing bridge between China and the international community during World War II, so it is famous. Now it has been built into a spacious and sturdy reinforced concrete bridge, and thousands of businessmen and border people from both countries come and go from the bridge every day.

From mangshi to Wan Ding, there are dozens of buses for tourists to ride every day, with good road conditions and beautiful scenery along the way.