Heihe Polymetallic Mineral Development Industrial Cluster

The Heihe Mineral Resources Economic Sub-Zone is located in the northern part of Heilongjiang Province and belongs to the Daxinganling metallogenic belt. It is located in the southeast of the Greater Khingan Mountains and the northwest of the Lesser Khingan Mountains. It borders Yichun and Suihua City in the southeast, Qiqihar City in the southwest, the Inner Mongolia Autonomous Region in the west across the Nen River, the Mohe Mineral Resources Economic Zone in the northwest, and Amur Russia in the northeast. The two states are opposite each other across the Heilongjiang River. It governs parts of Nenjiang, Sunwu, and Xunke counties, and six administrative districts including Bei'an, Wudalianchi City, and Aihui District. The central city is Heihe City.

1. Advantages of copper and molybdenum polymetallic mineral resources

Heihe City *** has 7 large-scale mineral deposits, including Duobaoshan copper (molybdenum) deposit and Tongshan copper (molybdenum) deposit, Cuihongshan iron-polymetallic deposit, Dong'an rock gold deposit, Zhengguang rock gold deposit, Sandaowanzi rock gold deposit and other important mineral deposits. Among them, Dabaoshan Mine has a copper reserve of 3.0428 million tons, making it the largest copper mine in Northeast China. .

Copper, molybdenum, associated gold, silver, etc. are mainly distributed in the northern part of the Nenjiang River. Iron, lead, zinc, tungsten, and molybdenum are mainly concentrated in the Cuihong Mountain area. Rock gold is distributed in Dong'an, Zhengguang, Sandaowanzi, etc. land. Judging from the reserve distribution, copper is mainly concentrated in the Duobaoshan and Tongshan deposits, lead, zinc, and tungsten are concentrated in the Cuihongshan deposit, molybdenum reserves are concentrated in the Cuihongshan, Tongshan, and Duobaoshan deposits, and rock gold reserves are mainly distributed in Dong'an, Zhengguang, Sandaowanzi and other deposits; silver is concentrated in the Duobaoshan deposit. Copper has always been a mineral in short supply in my country, and a large amount of copper ore needs to be imported every year. According to statistics, the demand for copper in Heilongjiang Province is about 60,000 to 70,000 tons per year, and the utilization rate of copper in deposits such as Duobaoshan and Tongshan is currently only 0.1. Therefore, the comprehensive development and rational utilization of copper resources in the Duobaoshan mining area will play an important role in alleviating the problem. The current supply of copper resources is tight, and it is of strategic significance to promote local and even provincial economic development.

There are 4 mineral deposits with proven molybdenum resource reserves, located in Erzhushan and Luming areas of Tieli City. The Luming Molybdenum Copper Deposit is under exploration. The resource amount obtained in the early stage is about 117,670 tons, and the potential resource reserves are estimated to exceed 200,000 tons. The proven reserves of the Hojihe molybdenum mine exceed 100,000 tons, reaching a large scale. The Cuiling molybdenum-copper deposit in the Xing'anling Forest Farm is similar to the Luming deposit and is not included in the 2008 reserves table. It is estimated that the potential resources exceed 20,000 tons. Other molybdenum resources are associated minerals, including the Ergugushan iron-polymetallic deposit (molybdenum associated ore, resource reserves of 1,744 tons), the Ergu Xishan iron-polymetallic deposit (associated molybdenum 797 tons), and the Xulao Jiugou lead-zinc deposit (associated Molybdenum resource reserves are 2,760 tons), etc.

2. Geographical advantages

Heihe City, the central city of the Heihe Economic Zone, is an important border city in the north of Heilongjiang Province. Its geographical location belongs to the eastern end of the Greater Khingan Mountains and the north of the Xiaoxinan Mountains. A natural green barrier runs through the city from northwest to southeast. Heihe City borders Yichun City and Suihua City to the southeast, Qiqihar City to the southwest, faces the Inner Mongolia Autonomous Region across the Nen River to the west, is connected to the Greater Khingan Mountains and Huma County to the north, and is connected to Amur, the third largest city in the Russian Far East, to the northeast. The state capital, Blagoveshchensk (Hailanpao), faces each other across the Heilongjiang River.

Heihe City is the only Chinese border city on the Sino-Russian border that is closest to the capital of the Russian Federation, is the largest, has the highest specifications, has the most complete functions, and is the earliest open to the public. Mining development brings huge geographical advantages. The development of mineral resources in Heilongjiang Province has always implemented the national directive of "must strengthen the utilization of foreign resources", followed the principle of "two resources, two markets", and actively searched for foreign resources for scarce minerals and foreign markets for advantageous minerals. As an open border city, Heihe City has unique advantages in this regard. It not only has advantages in utilizing foreign resources and developing foreign markets, but also has great convenience in attracting investment. There is a tradition of close cooperation between the mineral exploration and development departments of Heilongjiang Province and the Russian Far Eastern states. The two parties have conducted many exchanges and cooperation on resource exploration and development in the Heihe Economic Zone. The Institute of Geology of the Far East, the Institute of Tectonics of the Russian Academy of Sciences and the Amur Institute Researchers and experts from the Prefecture and Chita Prefecture Bureau of Geology and Mineral Resources have visited Duobaoshan Tongshan Copper Mine, Sandaowanzi Rock Gold, Dong'an Gold Mine, Gaosongshan Gold Mine, etc. for many times.

The geographical advantages of mineral resource development in Heihe City are very obvious.

Heihe City is an important thoroughfare connecting the north and south of Heilongjiang Province, and is adjacent to Qiqihar City in the southwest. The construction of the Harbin-Daxing-Qilin Industrial Corridor and the Greater and Lesser Khingan Mountains Ecological Functional Reserves directly affect or even determine the development of the Heihe Economic Zone. The "Harbin-Daqi Industrial Corridor Construction Zone" focuses on attracting domestic and foreign capital and technology, building a variety of industries that are mutually supporting, new systems, high-tech, export-oriented, ecological, rationally structured, and rapidly growing industrial highlands and economic intensive areas, becoming Heilongjiang Province is the core area for revitalizing old industrial bases and the pioneer area for realizing the goal of comprehensively building a moderately prosperous society. In the construction of the Harbin-Daqi Industrial Corridor, a large number of metal products are needed, such as molybdenum, copper and other metal products, thus providing a huge demand market for the construction and development of Heihe City, especially the development of mining. Heihe City is located in the hinterland of the Greater and Lesser Khingan Mountains. The construction of the "Greater and Greater Khingan Mountains Ecological Function Reserve" creates opportunities for the development of the Heihe Economic Zone.

To sum up, it can be seen that the construction of Heihe Economic Zone has excellent geographical advantages and can enjoy two policy advantages in the construction of eight major economic zones at the same time.

3. Mining policy advantages

The country has deeply implemented the revitalization strategy of the old industrial base in Northeast China and prioritized the development of energy industry policies. Heilongjiang Province has focused on the planning and construction of the "Eight Economic Zones" and the "Ten Economic Zones". "Big Project" promotion measures and guidance strategies for vigorously developing raw materials and energy industries will more effectively promote the development process of mineral resources in Heihe Economic Zone and achieve the first breakthrough in Heihe City's mining economy. In addition, Heihe City has good endowment advantages of molybdenum-copper polymetallic resources and regional development advantages. Under the guidance of various mining policies of governments at all levels, the development of Heihe City's molybdenum-copper polymetallic resource industry will reach a new level.

In the process of industrialization, urbanization, and internationalization, the scientific development and rational utilization of mineral resources is an important basic guarantee. The state encourages the exploration and development of mineral resources with market demand. In particular, there is a serious shortage of some important mineral resources related to the national economy and people's livelihood. The shortage of copper and other metal resources is particularly serious. To this end, the country has formulated and implemented a series of major measures, such as carrying out exploration work for key minerals and key metallogenic zones, carrying out special prospecting projects for crisis mine replacement resources and important resource reserve strategies, indicating that the national economic construction’s demand for mineral resources is in Significantly improved. Since 2004, the country has begun to discuss and plan to build the "Daxinganling Nonferrous Metals Base". The Ministry of Land and Resources has taken the lead in organizing experts from various fields to conduct in-depth analysis and demonstration of the development prospects and potential of the Daxinganling nonferrous metals resources. At the same time, the development of mineral resources has The impact on the ecological environment has been scientifically demonstrated. The nonferrous metal mineral resources in Heihe City are located in the "Lizishan-Oroqen Iron-Zinc-Tungsten-Gold-Chromium-Lead Mineralization Belt" in the planning of the "Daxinganling Nonferrous Metals Base". The exploration and development of many typical mineral deposits such as Duobaoshan, Cuihongshan, Sankuanggou, Huojihe, Dong'an, etc. have important demonstration significance.

4. Principles of industrial cluster development

(1) Heihe City’s molybdenum-copper polymetal resource industry planning must be based on rich mineral resources and based on the development and construction of mines. As a pioneer, we will extend the deep processing of mineral products to form an industrial chain of mining-selecting-smelting-processing-marketing, and build a molybdenum-copper polymetal production and processing base.

(2) The development of the molybdenum-copper polymetallic resource industry must adhere to the principle of "development in protection and protection in development", be market-oriented, centered on economic benefits, and based on comparatively advantageous mineral resources As a basis, it meets the needs of national economic development and is conducive to improving the degree of intensive utilization of mineral resources and the sustainable development capabilities of the mining industry. Pay attention to the application of new mineral mining, beneficiation, and smelting processes, constantly explore new application areas, and enhance the competitiveness of molybdenum-copper polymetallic mineral products in Heilongjiang Province and even nationwide.

(3) Integrate mining resources, regulate the scale of mining, and maximize overall benefits. Strengthen the exploration and development of major mineral deposits such as Duobaoshan, Cuihongshan, Luming, Wudaoling, and Gongpengzi. Adjust and optimize the mineral product structure. Adjust the resource allocation structure of production links such as mining, selection, smelting, and product deep processing, accelerate technological innovation, actively cultivate and develop new products, and strive to adjust declining industries.

The focus is on the research and development of new products, enhancing the processing and production capabilities of refined, deep and fine products, and extending the industrial chain. Encourage the development of mineral projects in the "Catalogue of Industries, Products and Technologies Currently Encouraged for Development by the State", and prohibit mineral projects in the "Catalogue of Backward Production Capacities, Technologies and Products" and the "Catalogue of Preventing Duplicate Construction in the Industrial and Commercial Investment Field". We will eliminate outdated original brand products and strive to increase the added value of mineral products.

(4) Adjust and optimize the technical structure. While vigorously developing rock gold, molybdenum and copper, we will also strengthen research on the comprehensive recycling of associated low-grade gold and molybdenum. Consolidate domestic production, encourage outsourcing, introduce advanced technology that can mine and select 15-20% ultra-poor iron ore, maximize the development and utilization of existing resources, and extend the service life of iron ore mines; actively research and exploit the Luming molybdenum copper deposit We will use new technologies and methods to stabilize the production capacity of ore concentrate powder at Duobaoshan copper-molybdenum mine. Introduce, promote and apply advanced production technologies and processes, change the situation of backward mining and processing equipment and technical levels, improve mining recovery rate, mineral processing recovery rate and comprehensive utilization rate, reduce mining dilution rate, and improve the comprehensive utilization of mineral resources level. Improve the level of mining mechanization in molybdenum-copper polymetallic mines and eliminate backward mining methods and equipment.

(5) Strengthen the construction of monitoring and early warning mechanisms for mine safety production to ensure mine production safety; introduce advanced mineral product production technology and technology, promote the development of high-tech molybdenum-copper multi-metal processing industry, and add new varieties, extend the industrial chain; consolidate the position of high-quality molybdenum-copper polymetallic mineral products in the international market, and improve the ability to earn foreign exchange through exports. Strengthen the effective protection and utilization of mineral resources, pay attention to the recycling of resources, and strive to improve the level of comprehensive utilization of mineral resources. We must resolutely put an end to the short-term behavior of exploiting the rich and discarding the poor, exploiting the big and discarding the small, and follow the path of mining operations of overall planning, rational development, comprehensive utilization, and healthy development.

(6) The ecological environment protection and restoration management of mines should be strengthened, the level of mine reclamation should be improved, the compliance rate should be above 70, and the access conditions for new mines should be strictly enforced. Adhere to the policy of paying equal attention to the development and utilization of mineral resources and the protection of the ecological environment, focusing on prevention and combining prevention and control, and adhere to the principle of "who develops, who protects, who pollutes, who controls, who destroys, who restores". Establish and improve the mine ecological environment protection and mine ecological environment impact assessment systems, and fully implement the mine ecological environment protection and land reclamation performance bond system. Through the management of key projects, we will comprehensively promote the construction of "green mining" and lay the foundation for the construction of "ecological provinces" and "ecological cities". Establish a relatively complete dynamic information management system for prevention, monitoring and protection.

5. Construction of copper and molybdenum polymetallic development industrial cluster bases

With the development of molybdenum, copper, gold, lead, zinc, iron and other mineral resources and product deep processing as the main industries, the formation of Coordinated industrial chain; according to the development needs of molybdenum-copper polymetallic mining, the resource industries that have been prioritized in the near future are mainly molybdenum-copper polymetallic and rock gold mining, smelting, and processing industries. Establish a high-tech R&D and processing base for molybdenum, copper and other metals in Heihe City. Heihe City's R&D center focuses on copper and gold processing industries and related industries.

The construction of a high-tech development base takes the cultivation and development of key enterprises featuring deep processing of molybdenum, copper and other metals as its main task, strives to integrate various scientific and technological resources, and encourages and coordinates universities, scientific research institutes and enterprises. Through close cooperation, we will create a number of domestic first-class modern and international molybdenum, copper and gold metal processing enterprises with distinctive industrial characteristics, leading core technologies, complete service platforms, advanced management models, complete basic functions, and give full play to the high-tech agglomeration effect to drive Heihe The mineral resources industry economy will develop better and faster. Prioritize the development of molybdenum and copper metal processing industries, focus on Heihe City's export-oriented economic construction to Russia, build a science and technology platform, make full use of the university's resource advantages, and promote the construction and development of science and technology industrial parks. In order to strengthen and promote the rapid development and utilization of advantageous resources, the key minerals in the Heihe Mineral Resources Economic Sub-Zone have been identified as mining bases with priority development and key support. The scale of resource reserves is slightly smaller, or the mineral prospects have not been identified yet. The area is designated as a mining area. Based on the central city of Heihe, it is planned to build 3 copper and molybdenum polymetal mining bases and 1 mining development zone and technology research and development center.

(1) Duobaoshan-Zhengguang Copper-Molybdenum-Gold Industrial Base

Duobaoshan-Zhengguang Copper-Molybdenum-Gold Industrial Base consists of Duobaoshan Copper Mine, Tongshan Copper Mine, and Sankuanggou Copper Mine It consists of five mines including Xiaoduobaoshan Copper Mine and Zhengguang Gold Mine.

Existing resource reserves in Duobaoshan area: 3.637 million tons of copper, 84.31 tons of associated gold, 1,320 tons of associated silver, 138,000 tons of associated molybdenum, 98 tons of associated rhenium, 1,427 tons of associated selenium, and 36,000 associated zinc ton. Mainly mining copper and processing copper products, supplemented by the comprehensive utilization of associated metal minerals, introducing advanced mining, mineral processing, smelting, product processing technology and management, improving the utilization value of the mine and exerting overall benefits, and building the area into It is the largest copper industry base in Heilongjiang Province and even the Northeast region. While mining and selecting copper, we should recycle useful resources such as molybdenum, gold, silver, rhenium, selenium, and zinc with large amounts of associated resources to improve the utilization value of the mine and form a mine with comprehensive development and comprehensive utilization. Among them, the Duobaoshan deposit comprehensively recovers gold, silver, molybdenum, rhenium, and selenium; the Tongshan deposit comprehensively recovers gold, silver, molybdenum, rhenium, and zinc; and the Sankuanggou deposit mainly recovers gold, silver, and iron. In addition, resources such as palladium, platinum, iridium, and osmium that have not been recycled in the tailings must be scientifically and reasonably protected so that they can be recycled in the future when conditions are mature.

Mining and dressing joint enterprises: including Duobaoshan Copper Mine and Tongshan Copper Mine.

Duobaoshan Mining: Duobaoshan Mine covers an area of ??4 square kilometers and consists of stopes, stockyards, mineral processing plants, tailings ponds, substations, mine management departments, and employee living quarters. District and other building complexes and land occupation projects. The mine is planned to be constructed in two phases. The first phase is designed to have an annual mining capacity of 7.5 million tons of rock. The basic construction of the mine will be completed in 2008 and the mine will reach capacity in 2009. The second phase is designed to have an annual mining capacity of 9 million tons and will reach capacity in 2010. The mine service life is 70 years. The mine dressing site adopts flotation beneficiation process and is planned to be constructed in two phases. The first phase is designed to process 7.5 million tons of ore per year. The basic construction of the dressing plant was completed in 2008 and put into operation in 2009, with an annual output of 82,000 tons of copper concentrate; It will process an additional 9 million tons of ore in the first phase. The construction of the second phase of the dressing plant was completed in 2009 and reached capacity in 2010, with an annual output of 103,000 tons of copper concentrate. By 2010, the total annual ore processing capacity will reach 16.5 million tons, with an annual output of copper concentrate. ore of 185,000 tons.

Tongshan Mining: The planned area of ??Tongshan Mine is controlled within 2 square kilometers, including stopes, stockyards, mineral processing plants, tailings ponds, substations, mine management departments, and employees Building complexes such as living areas and land occupation projects. The mining scale of the mine is 2 million tons. The basic construction of the mine was completed in 2008 and the production capacity was reached in 2009. The service life of the mine is 70 years. Tongshan adopts flotation beneficiation process to process minerals. The ore dressing plant can process 2 million tons of ore annually. The construction of the dressing plant was completed in 2008 and put into operation in 2009, with an annual output of 24,000 tons of copper concentrate.

Mining enterprise: composed of Sankuanggou Mine and Xiaoduobaoshan Copper Mine.

Sankuanggou Copper Mine: It is in the final stage of development, and its resource reserves are close to exhaustion, so it will no longer be renovated or expanded.

Xiaoduobaoshan Mine: The planned area of ??Xiaoduobaoshan Mine is controlled within 0.3 square kilometers, including the stope, material yard and mine management department. The mining scale is 150,000 tons, the mine service life is 10 years, and the ore is transported to Duobaoshan mineral processing plant.

Smelting enterprise: Plan to build a unified copper smelting plant located in Duobaoshan Mining Industrial Park. By the end of 2010, 209,000 tons of copper concentrate were smelted annually. The planned smelting plant area is controlled within 0.5 square kilometers.

Planning and construction of auxiliary facilities: including water source projects, water diversion projects, and power transmission and transformation projects. The water source is built near Erkan Village in the middle reaches of Nilu River. The water diversion project mainly diverts water from Erkan River Reservoir to Duobaoshan Mining Industrial Park-Tongshan Mining Area-Duobaoshan Mining Area to supply production and domestic water for the four mines and Duobaoshan Mining Industrial Park. The area of ??the water source project is controlled to 3 square meters. Within a kilometer. A transmission line is planned from Heibaoshan to Tongshan and Duobaoshan.

Estimated industrial economic benefits: the total investment by the end of 2010 will be 2.11 billion yuan. The expected annual output value is 3.736 billion yuan, and the total annual profit and tax is 448 million yuan.

Cost: A total of 3.8 billion yuan is required to complete the entire construction, including 3.06 billion yuan for Duobaoshan Mine, 640 million yuan for Tongshan Mine, and 100 million yuan for Xiaoduobaoshan Mine. Funds are mainly invested in various aspects such as mine infrastructure construction, equipment installation, mineral processing plants, tailings ponds, water sources and water diversion projects, transmission lines and substations, sewage treatment, mine management, staff living areas and road construction within the mine. Mining and factory construction adopts investment promotion methods to attract social funds, and external environmental construction is solved by the government raising funds.

In addition, in order to ensure the sustained and stable normal production of the mines, it is necessary to further strengthen the search for copper resources in Duobaoshan, Tongshan, Xiaoduobaoshan and Sankuanggou areas, and expand the copper resource reserves in this area , laying the foundation of resource reserves for the long-term development of the mine. Conduct systematic exploration of the low-level resource areas of Duobaoshan and Tongshan mines to improve the resource reserve level and provide reliable basic reserves and reserves for the subsequent production of the mines. The exploration period is from 2007 to 2010, with a planned investment of 70 million yuan.

Income: By 2010, the annual output value is expected to reach the total annual output value of the copper industry of 3.736 billion yuan, including the processing added value of 400 million yuan (the total copper product processing volume will reach 40% of the annual copper output) (around), with an expected total annual profit and tax of 448 million yuan.

The existing rock gold resource reserves in Zhengguang Gold Mine are 10 tons, and the predicted resource amount is 50 tons.

① The planned mine area is controlled within 3 square kilometers, including stopes, stockyards, mineral processing plants, tailings ponds, substations, smelters, mine management departments, and staff living areas and other building complexes and land occupation projects.

② Mine stope planning and construction: annual mining capacity of 150,000 tons; mine service life is 20 years.

③ Planning and construction of mineral processing plant: annual processing of 150,000 tons of ore. The basic construction of the mine was completed in 2008 and reached production in 2009.

④Estimated economic benefits of the resource industry: The total investment in mine construction is 160 million yuan, which is mainly used for the construction of stopes, mineral processing plants, tailings ponds, etc. Mine construction adopts investment promotion methods to attract social funds, and external environment construction is solved by the government raising funds. After reaching capacity, it is expected to produce 600 kilograms of gold annually, with an annual output value of 90 million yuan and an annual profit and tax of 10.8 million yuan.

⑤ Further strengthen the search for gold resources in Duobaoshan, Tongshan, Xiaoduobaoshan, Sankuanggou and Zhengguang areas, expand the gold resource reserves in this area, and lay the resource reserve foundation for the long-term development of the mines . Exploration of low-level resource areas in mines will improve resource reserve levels and provide reliable basic reserves and reserves for subsequent production of mines. The exploration period is from 2007 to 2010, with a planned investment of 30 million yuan.

(2) Sandaowanzi-Fudiyingzi Copper and Gold Industrial Zone

Sandaowanzi-Fudiyingzi Copper and Gold Base consists of Sandaowanzi Gold Mine, Fudiyingzi Yingzi Copper Mine consists of two mines.

The existing rock gold resource reserves of Sandaowanzi Gold Mine are 4,300 kilograms, and the predicted resource amount is 5,000 kilograms; the silver resource amount is 14.2 tons.

The planned area of ??Sandaowanzi Mine is controlled within 1 square kilometer, including stope, material yard, mineral processing plant, tailings pond, substation, smelter, mine management department, Building complexes such as employee living areas and land occupation projects.

Mining: It is planned to build a mine with an annual mining capacity of 150,000 tons of ore; a construction plant with an annual processing capacity of 150,000 tons of ore and a mine service life of 8 years. In 2007, the basic construction and equipment installation and commissioning of the mine and mineral processing plant were completed, and it was put into operation in 2008.

Mineral exploration: Further carry out exploration of rock gold resources in the northern part of the Sandaowanzi mining area (Beidagou) and Shangmachang area, expand resource reserves around the mining area, and lay a resource reserve foundation for the long-term development of the mine. Exploration of low-level resource areas in mines will improve resource reserve levels and provide reliable basic reserves and reserves for subsequent production of mines. The exploration period is from 2007 to 2010, with a planned investment of 30 million yuan.

Estimated economic benefits of the resource industry: The estimated total investment in mine construction is 130 million yuan, which will be mainly used for the construction of stopes, mineral processing plants, tailings ponds and other auxiliary facilities.

Financing channels: Mine construction attracts social funds through investment promotion, and the external environment is solved by the government raising funds. After reaching full capacity, it is expected to produce 840 kilograms of gold annually, with an expected annual output value of 126 million yuan and an annual profit and tax of 15.12 million yuan.

The original copper resource reserves of Fudiyingzi Copper Mine are 15,900 tons, 14,600 tons of zinc, 11 tons of silver, and 353 kilograms of gold. At present, Longzhu Mining has developed it and comprehensively recovered zinc and part of sulfur while mining copper. The existing copper resource reserves in the resource reserve table are 11,000 tons, but the actual remaining resources of the mine are only more than 1,000 tons. The resources of zinc and copper have decreased in the same proportion. According to the current mining scale, the mine will be closed within 2 to 3 years. , belongs to the crisis mine. The development direction of this deposit is mainly in two aspects. The first is to increase efforts in resource search. Continue to search for copper ore bodies around the mining area to extend the service life of the mine. At the same time, we are looking for rock gold resources near the mining area to facilitate the transition to developing rock gold resources when the copper resources in the mine are in crisis. The second is to study tailings recycling technology and processes and strengthen the utilization of tailings resources. It is planned to invest 20 million yuan in copper and rock gold resource exploration and 5 million yuan in the tailings beneficiation process. By 2010, the output value of the mine's leading products will remain at the current level of 18 million yuan. Comprehensive recovery of gold and silver will be completed in three years based on 30% of the potential value of gold and silver. The annual output value of gold and silver recovery can reach 10 million yuan. The annual total output value will reach 28 million yuan, and the annual profit and tax will be 2.16 million yuan.