History of Yunnan Tin Company

1.History of Guiyan Platinum Company Limited

--Research Institute Period (1938-1999)

Guiyan Platinum Company Limited was founded in 1938, moved to Kunming during the Anti-Japanese War, and carried out research on precious metals in 1962, which has become the pioneer and leader of China's precious metal research. Since the 1980s, it has taken the development path of "promoting industry with scientific research and feeding scientific research with industry", and started to implement enterprise management in the 1990s, becoming one of the few scientific research institutes with enterprise legal personality and one of the first institutes with the right to conduct foreign trade and business in China. It became one of the very few scientific research institutions in China with the legal personality of an enterprise and one of the first batch of institutions with the right to operate foreign trade. In the comprehensive performance assessment of national research institutes conducted by the Ministry of Science and Technology, the comprehensive scientific and technological strength of your research institute ranked 18th among more than 300 industrial research institutes in China at the end of the Ninth Five-Year Plan, and its operational performance ranked 1st.

-- Enterprise conversion stage (1999-2004)

In 1999, the State Council of 242 scientific research institutes in the country to implement enterprise conversion, Guiyan was converted into a science and technology-based enterprises, in July 2000, Guiyan was assigned to the localized management of Yunnan Province, and was listed as the first batch of reforms in Yunnan Province. In July 2000, Guiyan was transferred to the localized management of Yunnan Province, and was listed as the first batch of reformed institutes in Yunnan Province as a model of restructured institutes, and promoted its experience among 22 restructured institutes in the province. in September 2000, Guiyan started to set up Guiyan Platinum, and in April 2003, Guiyan Platinum 40 million A shares were successfully issued in the Shanghai Stock Exchange, which was the first listed company in Yunnan Province under the approval system, and the capital raised was RMB 259 million yuan, which laid a good foundation of technological innovation and industrial development for the enterprise. In February 2004, Yunnan Provincial State-owned Assets Supervision and Administration Commission (SASAC) was set up to fulfill the responsibilities as an investor of Guiyan, and Guiyan was included in the management of SASAC as one of the 34 large and medium-sized state-owned enterprises in Yunnan Province. After the implementation of entrepreneurial restructuring, the production and operation of Guiyan has been rapid development, from 1999 to 2004, to achieve the asset size, comprehensive income and profit doubled every three years, the enterprise renewed new vitality and vigor.

-- Implementation of integration and reorganization with Yunxi Group (2005-present)

In June 2005, according to the document "Approval of the People of Yunnan Province *** on the Implementation of Integration and Reorganization of Enterprises such as Yuntianhua Group Limited Liability Company" (Yunzhengfu [2005] No. 39). Yunnan Tin Group and Guiyan merged to form the new Yunnan Tin Group. Since the integration and reorganization, Guiyan Platinum Industry to accelerate the pace of development, production and operation, project construction, reform and development has made rapid progress in the achievements of the economic indicators breakthroughs in the history of new highs, from the integration of 2005 to 2012, basically to achieve the size of the assets, comprehensive income and profit doubled each year of extraordinary performance, Guiyan Platinum Industry, the comprehensive economic strength, market competitiveness, and the ability of sustainable development has further strengthened, to achieve leapfrog development, and to move forward to a new level. It has realized leapfrog development, stepped onto a new development platform, and become a new force of Yunxi Group.

2012 operating income of 4.226 billion yuan, an increase of 41.55% over the same period. Among them, the precious metal products sales revenue of 1.948 billion yuan, an increase of 0.93%; renewable resources plate sales revenue of 736 million yuan, an increase of 69.88%; precious metal trade sales revenue of 151.9 million yuan, an increase of 152.47%.

2. Finney company has how many years of history it

PHNIX began exporting products to Europe and the United States market in 2000, after 10 years of growth, has developed into a company with 11 subsidiaries, more than 1,000 employees, production workshop area of 60,000 square meters, product sales to more than 70 countries and regions around the world of the international group of companies, with an annual output of more than 8,000 units of heat pump water heating equipment, annual sales of 500 million yuan. The annual production capacity of heat pump water heating equipment is more than 8 million units, and the annual sales volume is more than 500 million dollars.

As a company targeting the European high-end market, we have been following the cutting-edge technological developments in the European heat pump industry for many years, attending professional exhibitions of the industry held in Europe every year, attending various technical seminars, and at the same time, keeping close communication and exchanges with our core customer base to understand the dynamics of the industry. Through these channels, PHNIX people have learned a lot of international advanced R&D and management skills, which have greatly improved our ability and level in product development, quality control, market coordination and other aspects.

PHNIX has also established long-term cooperation with many domestic universities, such as the Chinese Academy of Sciences, and invested in the research institutes of these universities to research and develop new technologies and products with independent intellectual property rights. After years of rapid and stable growth, PHNIX has now taken a leading position in the domestic heat pump water heating field.

We are able to provide comprehensive and excellent solutions and products for building heating and warming, household/centralized hot water and other fields. Including: air-source heat pump water heaters, water-source heat pumps, domestic hot water heat pump equipment, swimming pool hot water heat pumps, solar hot water systems, and so on.

Now we have been the largest manufacturer and exporter of Pool Heat Pump, Integral Domestic Air Water Heater in China, and one of the largest professional heat pump manufacturers in China. PHNIX has been insisting on shaping its brand image with high quality products and services from the very first day. We have carefully made a lot of technical improvements for different markets and requirements, and sent them to authoritative organizations for testing and appraisal, and have obtained all kinds of certificates, including CE, GS, ETL, ROHS, EMC(TUV), CCC, C-TICK, etc. We have been working hard on the development of our products, and we have been working hard on the development of our products and services.

The company passed the ISO9001 quality system certification as early as 2005. In the production system, the company has strictly implemented the 6S on-site management system for a long time.

With the consistent stringent requirements for quality and technical excellence, PHNIX will continue to provide customers with high quality products and services. We are looking forward to working with more people who are concerned about environmental protection to make greater progress in the field of energy saving and environmental protection, and to make greater contributions to the improvement of human living environment.

3. Characteristics of tin

Tin is a silvery-white metal with a melting point of 231.9°C and a density of 7.3 g/cm3.

There are three isomers of tin, namely, gray tin (α--stannum), white tin (β--stannum) and brittle tin (γ--stannum). (γ - tin). The most common is white tin, a silvery-white metal, which is stable at temperatures between 13.2 and 161°C.

Low-altitude tin is also known as white tin.

Below 13.2°C, white tin begins to transform into powdery gray tin, and the rate of transformation accelerates with decreasing temperature. When cold to -30 ℃, to reach the maximum rate of transformation.

When the temperature is higher than 161 ℃, white tin to brittle tin, until it reaches the melting point (231.9 ℃) all liquid. Gray tin density of 5.85 g / cm 3, white tin density of 7.2 g / cm 3, the density of the liquid tin foil is 6.98 g / cm 3.

Room temperature tin is stable in the air, the reason is that the surface of the tin to generate a layer of dense oxide film, preventing further oxidation. Tin spreading good and poor ductility, so can be made into a very thin tin foil and can not be pulled into the tin wire.

Currently, the main raw material for tin refining is cassiterite (SnO2). Cassiterite through the reduction of melting, refining and other processes, you can get metal tin.

The use of tin tin rich spreading, good plasticity, can be rolled into 0.04 mm below the tin foil. Pure tin and weak organic acids act slowly, good corrosion resistance, even if corroded, the compounds generated are generally non-toxic, so a large number of tin plating production tinplate for corrosion prevention or food industry.

Tin-based bearing alloy (Babbitt) is an excellent wear-resistant materials, it has a low coefficient of friction and good toughness, thermal conductivity and corrosion resistance. Tin can also be formulated into fusible alloys, solder, printing alloys, tin bronze and tin-containing brass.

Tin-containing titanium-based alloys are used in aviation, shipbuilding, atomic energy, chemical and medical equipment and other industrial sectors. Tin-niobium intermetallic compounds can be used as superconductors.

Tin's important compounds of tin dioxide, tin tetrachloride and tin organic compounds, respectively, used as raw materials for ceramic glaze, printing and dyeing silk fabrics, coal dyeing agent, can also be used as insecticides, antifouling agents, wood preservatives and flame containment agents. Tin "frostbite" winter, the cold, people's hands and feet frostbite.

However, tin will also have "frostbite". Tin "frostbite" is: metal tin at low temperatures, it crumbled into powder, like an epidemic like contagion spread, so that the entire tin products suffered damage.

Therefore, people call this phenomenon "tin epidemic", also said tin "frostbite". Tin born "frostbite", but also cause significant losses! More than seventy years ago, some people take the plane to the Antarctic expedition, because the aircraft tank is welded with tin, in the thousands of miles of ice in the Antarctic cold, soldering tin race into powdered gray tin, so that the gasoline in the tank leakage, the result is that the aircraft loss of fuel, the unfortunate fall crash.

Inhibit tin "frostbite" approach, is to add bismuth, lead, antimony, silver, gold and other impurities in tin, when the impurity content reaches a certain level can prevent "frostbite" occurs. Tin is located in the Red River Hani and Yi Autonomous Prefecture of Yunnan Province in the central part of the old, rich in tin ore reserves, and can be open-air mining, is China's largest tin base, known as the "tin" name.

The tin mines in Zhoukou have a history of more than 2,000 years of mining. The Han Book? Geography" records, "Ben Gu North Cai Shan and South Wushan out of tin".

The two mountains that is now the old mining area. Throughout the ages, although the continuous development, to the Qing Dynasty to flourish.

Before liberation, more than 90% of the tin produced by private small mines, the highest annual output of more than 10,000 tons. 1840 after the Opium War, the imperialist powers have flooded into China, plundering the old tin, so that the old mineral resources have been seriously damaged.

By 1949, the annual output of tin only 610 tons, the old tin industry is dying. Liberation 47 years, the old tin industry has developed greatly.

By now, only the Yunnan Tin Company produced large tin accounted for 55% of the national tin production, coupled with the production for the local generation of processing, *** accounted for 65% of the national tin production. Products 8 series, 60 varieties honored as "tin".

The world's largest tin belt The world's largest tin belt in Southeast Asia. It is from Indonesia's Belitung Island, Bangka Island, through the western part of the Malay Peninsula and Myanmar's Tanah Salim coast, has been extended to the western part of the Shan plateau in Myanmar, Yengan.

This tin belt tin reserves of about 4 million tons, accounting for the world's first. The history of tin mining in Southeast Asian countries is earlier (but about two thousand years later than China), and in the 9th century AD, the west coast of the Malay Peninsula already had a famous tin-producing port.

At the end of the 16th century, Burma shipped tin to India. Tin mining has also been practiced in Thailand and Indonesia for 200-300 years.

Southeast Asia's tin production, since this century, has been the world's first, accounting for about 60% of the world's total tin production. China's tin chlorinated metallurgical technology Yunxi Company, Kunming Metallurgical Research Institute and the Beijing General Research Institute of Mining and Metallurgy and other units, *** with the study of rotary kiln high-temperature chlorination method for low tin and high iron difficult to select tin in the ore, in order to comprehensively recover tin, lead and other valuable metals, can make Yunxi's existing beneficiation recovery rate increased by 6%-7%, and can be stockpiled tailings over the years, to recover a large number of tin and other metals.

In foreign countries, this technology is still a tin metallurgy research frontiers, and our country in the tin chloride metallurgy has been a world leader.