According to historical records, the development of Gejiu tin industry has a history of more than 2000 years. About 50 thousand years ago, human beings lived in an old place. In the Western Han Dynasty, Gejiu belonged to Bengu County. With the infiltration of Central Plains culture, the mining and smelting of tin, silver and lead rose, and a large-scale division of labor and cooperation was formed in the Eastern Han Dynasty. In the Ming Dynasty, silver and copper industries were developed, and tin products were famous all over the country. After Kangxi in the Qing Dynasty, the tin industry flourished. In the 11th year of Guangxu (1885), an old hall and a government office were set up to specialize in mining. Gejiu Daxi began to export in large quantities. 1897, the first postal agency in Yunnan province was established in Gejiu. 1933 Yunnan radio set up an old substation in the tin company to communicate with Gejiu tin industry and its production and the international tin market in new york, London and other places. The following year, Gejiu mining capitalists raised funds to set up the first private telephone enterprise in Gejiu mining area, which connected the telephone circuits of major mining enterprises. In the thirty-first year of Guangxu (1905), the old factory official commercial company was established and foreign experts were hired to produce tin, which opened the precedent of modern production of Yunnan metallurgical industry. In Xuantongyuan (1909), Bi (Sezhai) section of Yunnan-Vietnam Railway was opened to traffic. Due to convenient transportation and communication, the export volume of tin increased rapidly. The following year, Governor Yungui reorganized Gejiu Factory and Guanguan Co., Ltd. into Gejiu Tin Industry Co., Ltd., purchased mechanical equipment such as washing, smelting, testing, power and ropeway from Germany, and hired German engineers to guide production, creating the history of mechanized production in Yunnan metallurgical industry. By the end of 1930s, Gejiu tin industry reached its peak before liberation. There are as many as 4,400 private manufacturers, and the tin export volume reaches 1. 1 10,000 tons, accounting for more than 90% of the total tin export in China, ranking first in Yunnan's commodity export. In the second year of the Republic of China (19 13), Gejiu was listed as a first-class county in Yunnan Province and became an important industrial town in Yunnan. After the founding of People's Republic of China (PRC), in order to develop tin production and urban construction in Gejiu, the Central People's Government set Gejiu as one of the key construction areas in China during the First Five-Year Plan period on 195 1. A large number of management cadres and technical personnel, as well as financial and material resources, have been deployed from Northeast China, East China and Southwest China to support Gejiu. 1958, Gejiu was under the jurisdiction of Honghe prefecture, and the state capital moved to Gejiu city. At the same time, Kaiyuan County and Mengzi County were abolished and placed under the jurisdiction of Gejiu City. The latter two counties are demarcated at 196 1. After years of construction, Gejiu has developed into a medium-sized city with non-ferrous metallurgical industry as the main body, chemical industry, textile, electromechanical, building materials, medicine, food and other categories, and industrial economy as the dominant position. 1988, with the approval of the State Council, Gejiu was a city under separate state planning in Yunnan Province, exercising prefecture-level economic management rights; Open the city to foreigners. Since the 1960s, the annual mining and dressing capacity of nonferrous metals is100000 tons, the smelting capacity is 220000 tons, and the tin output is about 50000 tons, accounting for 45% of the national output and 1/4 of the world output. Products are exported to 47 countries and regions in the world, and it is the largest modern tin production and processing base in China. Gejiu is rich in underground mineral resources The proven reserves of non-ferrous metals such as tin, copper, zinc and tungsten reach 6.5 million tons, including more than 900,000 tons of tin, accounting for 1/3 of the national tin reserves. In addition, there are rare and precious metals such as beryllium, bismuth, gallium, germanium, cadmium, silver and gold, and nepheline reserves are about 3 billion tons, ranking first in the country. Gejiu's mining development began in the Western Han Dynasty more than two thousand years ago. By the first half of this century, the annual output of tin was as high as 65438+100000 tons. Now, Gejiu industry is developed, with 33 industrial categories,1more than 40 independent accounting industrial enterprises at or above the county level, forming a fixed asset scale of10.6 billion yuan. There are more than 80 metallurgical enterprises with an annual mining capacity of 8.5 million tons and a smelting capacity of 80,000 tons. Tin production accounts for 70% of the country, and non-ferrous metal products are exported to more than 40 countries and regions such as Britain, the United States and Japan. Gejiu's tin gravity separation smelting technology, rare energy-saving fluorescent lamp technology, tin handicraft production technology, tin-lead solder series products and high-purity tin production technology have all reached the domestic or international advanced level, and more than 60 products have won the titles of provincial excellent, ministerial excellent and national excellent, enjoying a high reputation at home and abroad and selling well all over the country. In addition to metallurgical industry, Gejiu has also formed two pillar industries: chemical industry and textile industry, and important industries such as electromechanical and building materials. Clothing, ramie yarn, spices and energy-saving fluorescent lamps are exported to more than 30 countries and regions such as Europe, America, Southeast Asia, Hong Kong and Macao. Gejiu is not only rich in tin ore, but also rich in other non-ferrous metal resources. There are as many as 28 kinds of proven mineral resources in Gejiu. Gejiu has great difference in altitude, obvious three-dimensional climate and abundant animal and plant resources. The forest coverage rate in the city is 32.3%, with 420 species of trees, 5 species of bamboo, more than 200 species of wild medicinal materials and more than 270 species of wild flowers. Rare plants include Yunnan Camellia, Stichopus japonicus, East Palm, Yunnan juniper, Elaeagnus Elaeagnus, Cycas, etc. Among them, Cycas Honghe, known as the "living fossil", is unique to tropical rain forests. Gejiu has some scenic spots, such as Gejiu Lake, Bao Hua Park, Datun Sea and Jiasha Hot Spring. Gejiu Manhao Scenic Area, located in Gejiu City, consists of Manhao, Xi Du, Baiyun Mountain and Datun Sea, with a total area of 148 square kilometers. Scenic resources include tropical mountain rain forest and tendrils consumption; Baohuashan Zoo, the largest gibbon breeding base in China; Yada Hot Spring with the highest temperature in Yunnan (95- 103℃). There are new species of polycyclic Cycas landscape in China. Xi Du culture is well-known at home and abroad; China has only one (old) 600 mm wide railway traffic. It can be used in tourism, biological investigation, tin culture and national industrial development history research. Gejiu's high-grade highways and narrow-gauge railways go directly to Kunming, and to Hekou, a small border town near Vietnam in the south. The domestic highway network extends in all directions. This old city is small and exquisite, and the houses are built around Jinhu, which is neat, sanitary and tree-lined. 1990 was rated as one of the top ten health cities in China. There are Bao Hua Park and Baohua Temple to visit in the city. Jiasha Hot Spring, 60 kilometers away from the city, with a water temperature of 70℃, is a good place for recuperation and bathing. Tin crafts such as tin paintings and tin wine vessels produced by Gejiu are beautiful and generous, and they are valuable tourist souvenirs. Rice noodles, baked tofu and kebabs are all famous snacks. Bao Hua Park is located at the foot of Laoyin Mountain in the east of Gejiu City. This is a zoo in Yunnan, second only to Tongyuan Mountain in Kunming, with rare birds and animals such as elephants, tigers, leopards, bears, pheasants and peacocks. Gibbon, a rare animal, accounts for more than half of the national zoos, and has been designated as the breeding center of gibbon by the national garden system. There are pine trees, fir trees, camellia, peony and other flowers and trees in the park, and pavilions are built. Climbing high and overlooking, the old city has a panoramic view, which is refreshing. Bao Hua Temple is located at the foot of Qilin Mountain in the southeast of Gejiu City 1km. In the spring of the 9th year of Emperor Kangxi of Qing Dynasty (1670), Li Renjie, a Taoist traveling in clouds, used the proceeds from fund-raising to build a temple. Later generations dedicated their statues to the temple in memory of them. Bao Hua Temple has been expanded and repaired many times, especially after the renovation and expansion of the municipal government a few years ago, and a number of temple buildings with rigorous structure, uneven hierarchical layout and magnificent momentum have been formed. Bao Hua Temple has Guanyin Cave, Lingguan Pavilion, Longwang Temple, Lianggong Temple, White Ape Building, God of Wealth Temple and other buildings. The ancient trees in the temple are towering, the brook is gurgling, overlooking the urban area, and the lights are brilliant at night. This is an ancient tourist attraction.