1. Tianjin, commonly referred to as Jin, is located in the northeastern part of the North China Plain, with the Bohai Sea to its east and the Yuanshan Mountain to the north. The city's terrain runs south to north, traversed by the Haihe River. It serves as a vital communication hub in North China and the gateway to the capital city.

2. Tianjin is a municipality directly under the Central Government and a key open city. It is situated in the eastern part of the North China Plain, covering an area of 11,300 square kilometers and having a population of approximately six million. The city experiences a semi-humid continental climate within the warm temperate zone, with an average annual temperature of 12 degrees Celsius and annual rainfall of 590 millimeters, enjoying 220 frost-free days annually. The coastal area is rich in resources such as petroleum, natural gas, and sea salt.

3. As one of China's largest industrial centers, Tianjin boasts a comprehensive industrial system, with machinery, electronics, textiles, chemicals, metallurgy, and foodstuff as its core industries. The city is also renowned for its large-scale production of arts and crafts, including hand-woven carpets, Yangliuqing New Year prints, Zhang's painted clay figurines, and kites, which hold a significant position in the national market.

4. Tianjin has achieved success in the operation of its Economic and Technological Development Zone in the Tanggu District, covering an area of 33 square kilometers in the northeastern part. The city is a bustling commercial hub and distribution center for goods and materials in North China, as well as a crucial land and sea transportation hub.

5. The port of Tianjin, which includes Tianjin, Tanggu, and Xingang Harbors, is a major Chinese seaport and serves as the most convenient sea outlet for Beijing, North China, and Northwest regions. The port, accessible to ten-thousand-ton class ocean freighters, operates over 20 international shipping routes.

6. Tianjin's transportation network is well-developed, with regular air service to more than 30 cities nationwide and accessible inland waterways and oil pipelines.

7. Tianjin is a renowned historical city with numerous famous scenic spots and historical sites, including Ning Garden, Tianhou Temple, Dule Temple in Ji County, the Great Wall at Huangya Pass, and the Panshan Scenic Area, among others. The city is being developed primarily into a financial center in North China, an international commercial city, and a free port.