The development history of Lanzhou Branch of China Aluminum Corporation of China

In 1958, in accordance with the spirit of the Northwest Bureau Regional Cooperation Conference on the rapid construction of an aluminum smelting plant with an annual output of 25,000 tons in Gansu, the Ministry of Metallurgy decided to build the Lanzhou Aluminum Plant in June 1958, and the site was selected in Xiliugou Township, Xigu District, 28 kilometers away from Lanzhou City. On July 2, 1958, the preparatory work for the Lanzhou Aluminum Plant officially began, and the project officially broke ground on August 4. During the construction process, the Ministry of Metallurgy made major modifications and changes to the original design plan. In October 1958, it was decided to change the original designed steel structure electrolyzer to 168 55KA self-baking anode brick electrolyzers, and the production capacity also increased from the original design. The designed 25,000 tons was reduced to 23,000 tons. At the same time, a small aluminum plant with 88 6KA upper conductive self-baked anode brick circular electrolytic cells was built near the large aluminum plant, with an annual output of 1,000 tons of aluminum ingots. The production capacity was later expanded to 2,000 tons. In addition, we built a self-built anode paste workshop with an annual output of 15,000 tons. The small aluminum factory produced aluminum on March 28, 1958, and produced the first aluminum ingot for the northwest region. Due to various reasons, it was not until May 9, 1960 that all 168 electrolyzers were started up and put into production. After it was put into production, due to inherent deficiencies in the design, the brick electrolyzer was severely damaged, and all production was forced to cease on December 28, 1960. On June 25, 1962, the entire production was shut down. In August 1964, all fixed assets of the Lanzhou Aluminum Factory, together with its personnel, were handed over to the Lanzhou Chemical Industry Company of the Ministry of Chemical Industry for management. It was not until November 1965 that the State Planning Commission, Economic and Trade Commission, and Construction Committee agreed to resume production at the Lanzhou Aluminum Factory. On March 1, 1966, the Lanzhou Aluminum Plant reconstruction project broke ground. On December 28 of the same year, the first qualified aluminum ingot was produced. By June 1967, it was fully completed and put into normal production. On May 12, 1971, Lanzhou Aluminum Factory officially proposed to the Metallurgical Department of Gansu Province to expand the third electrolytic plant and add 54 electrolytic cells. After the construction of the project began, all 54 electrolyzers were installed by June 29, 1973, and were put into production one after another. The total investment in the expansion project is 12.7 million yuan, adding 8,000 tons of aluminum ingots. In 1985, the third workshop was expanded again, adding 32 electrolytic cells, with a total investment of 13.77 million yuan, and 4,500 tons of new aluminum ingots. On July 23, 1986, Lanzhou Aluminum Factory submitted a report to China Nonferrous Metals Industry Corporation to build a fourth electrolytic workshop. Through self-raised funds, the construction of the fourth workshop expansion project started on December 1, 1986, and the original capacity of 9,000 tons was On the basis of this, 22 more electrolyzers were built, and by April 10, 1989, they were all completed, with a total new production capacity of 12,500 tons. On November 24, 1987, Lanzhou Aluminum Factory built a carbon plant in Hewan Village, Pingan Township, Honggu District, Lanzhou City, with an annual design capacity of 30,000 tons. The project passed completion acceptance at the end of December 1989 and was officially put into production. In 1993, the company built a new 60KA electrolysis production line in Hewan Village, Pingan Township, Honggu District, Lanzhou City, with a designed annual output of 30,000 tons of aluminum ingots. In 1997, the company acquired the Northwest Aluminum Processing Plant by assuming debts and realized the integration of smelting and processing (as of May 24, 2007, Northwest Aluminum was separated from Lanzhou Aluminum). In April 1999, approved by the State Economic and Trade Commission's Guo Economic and Trade Enterprise Reform Document No. 〖1999〗 No. 251, Lanzhou Aluminum Factory served as the main sponsor, jointly with Lanzhou Economic Information Consulting Company, Lanzhou Yongda Industry and Trade Co., Ltd., Lanzhou Aluminum Processing Factory, Lanzhou Four companies including Xing Aluminum Commerce and Trade Department jointly initiated the establishment of Lanzhou Aluminum Co., Ltd. So far, Lanzhou Aluminum Factory has successfully transformed from a factory system to a company system. On August 18, 2000, the company invested 1.35 billion yuan in the construction of a 200KA large-scale prebaked aluminum electrolytic technical transformation project in Hewan Village, Pingan Township, Honggu District, Lanzhou City. The construction was completed in October 2001 and was successfully put into operation. The project includes power supply system, carbon system and casting and rolling system. In 2004, the company made a decisive decision: "Exchange equity for development rights", implement asset reorganization, and join China Aluminum Corporation. After unremitting efforts, on January 19, 2005, China Aluminum Corporation purchased 2,890 state-owned legal person shares held by Lanzhou Aluminum Factory with cash contributions and became the largest shareholder of Lanzhou Aluminum. Lanzhou Aluminum Co., Ltd. Officially became a holding subsidiary of China Aluminum Corporation of China.

On August 12, 2005, the electrolytic aluminum technical transformation project and the 3×300MW self-contained power plant project, which were approved by the state, started construction grandly. The electrolytic aluminum technological transformation project is the ninth batch of national government bond special fund projects, with a planned investment of 1.886 billion yuan. It will adopt the current internationally leading and domestic first-class 350KA large-scale prebaked tank electrolytic aluminum technology, and introduce some key technologies and equipment from abroad. After one year and eight months of hard work, power was gradually supplied and put into production on May 15, 2007. The captive power plant project received project approval from the National Development and Reform Commission in June 2004, and was approved by the National Development and Reform Commission in July 2005. The total planned investment is approximately 4.391 billion yuan, with the installation of 3×300MW domestic coal-fired air-cooled generating units and the simultaneous installation of flue gas desulfurization devices. In December 2008, the first unit was completed and put into trial operation. In December 2008, it was fully completed and put into production. The maximum annual power generation capacity is 6.5 billion kWh, providing power for electrolytic aluminum production. In August 2006, the State-owned Assets Supervision and Administration Commission of Gansu Province and Chinalco signed a "Letter of Intent on Promoting the Equity Transfer of Lanzhou Aluminum Co., Ltd. and the Equity Transfer of Lanzhou Aluminum Plant", and initially reached an agreement to transfer the Lanzhou Aluminum Plant's shares to Lanzhou The intention to transfer the equity of Aluminum Co., Ltd. (except those invested in Lanzhou Aluminum Power Generation Company) to Chinalco. The remaining 14.65% equity of Lanzhou Aluminum Plant will be transferred to Chinalco in one go, bringing all Lanzhou Aluminum into the Chinalco family. On December 25, 2006, the company adopted Chinalco's absorption and merger of Lanzhou Aluminum and Lanzhou Aluminum's equity split reform plan. On April 30, 2007, Chinalco merged with Lanzhou Aluminum through share exchange and was successfully listed on the Shanghai Stock Exchange. Lanzhou Aluminum announced its withdrawal from the stage of history as an independent listed company and became a listed company in the United States, Hong Kong and Shanghai. A branch of Chinalco. On May 24, Chalco held a cadre meeting of Lanzhou Branch and announced the establishment of Chalco Lanzhou Branch, with Li Ning as general manager and Wang Hong as party committee secretary. On October 8, the office building of Chinalco Lanzhou Branch officially moved to the newly completed Technology Center Building. The main leaders in the past include: Fang Juping, Liu Zhenyang, Xia Jingye, Zhai Shenxiu, Wang Zhendong, Cao Shourang, Pan Xingguo, Liu Tiejun, and Feng Shiwei.