First, the impact of alumina supply, aluminum cost of aluminum production costs accounted for about 28% -34%. Due to the high concentration of the international alumina market, most of the world's alumina (80% to 90%) are sold through long-term contracts, so the spot market for the sale of alumina. In China, for example, before 1997, China's alumina gap is mainly in the international spot market to buy, there is no long-term contracts. By 1997, China Nonferrous Metals and Alcoa signed a 30-year long-term supply contract, 400,000 tons per year, the price according to LME aluminum prices a certain percentage of pricing. In recent years, the scale of China's electrolytic aluminum production continues to expand, leading to the domestic demand for alumina is also growing, about two-thirds of imports of alumina need to buy from the spot market. China in the international market, a large number of procurement of alumina, a direct increase in the international alumina prices rose sharply, according to statistics, in 2004 China imported 587 million tons of alumina, an increase of 4.8%, the average import price of 340 US dollars (foreign alumina Production of cash costs less than 120 US dollars), a simple calculation, only 2004 imports of alumina directly to pay more than the cost of foreign alumina suppliers up to the number of 1 billion yuan. Rising alumina prices have led to a significant increase in production costs for electrolytic aluminum producers, with a significant decline in economic efficiency, with most companies falling into low profits or losses.
Second, the impact of supply and demand, the relationship directly affects the market price of goods, when the market supply and demand is in a temporary balance, the commodity market price fluctuations in a narrow range; when the supply and demand is in imbalance, the price will fluctuate significantly The In the aluminum futures market, investors can focus on reflecting the aluminum supply and demand changes in an indicator - inventory. The inventory of the aluminum shell is divided into the report inventory and non-reporting inventory, the report inventory, also known as "dominant inventory", is the futures exchange regularly published its designated delivery warehouse aluminum inventory. Rather than reporting inventory mainly refers to the global number of manufacturers, traders and consumers holding the number of aluminum, because these stocks without specialized agencies for statistics and external release, so these stocks are also known as "hidden stock" The
Third, the impact of electricity prices, aluminum industry, also known as "electric tiger" industry, the current domestic and foreign aluminum plant tons of aluminum average power consumption are controlled at 15,000 kwh / t the following. Experience in the production of aluminum ingots in Western countries shows that when electricity costs exceed 30% of aluminum production costs are considered dangerous production.
Fourth, the impact of the economic situation has become an important non-ferrous metal varieties, especially in developed countries or regions, aluminum consumption has been highly related to economic development. When a country or region is developing rapidly, aluminum consumption will grow at the same time. Likewise, the recession will lead to a decline in consumption in some industries, leading to fluctuations in aluminum prices. In addition, some of the metal-related fluctuations in aluminum, fluctuations in international oil prices, changes in national industrial policy will have an impact on aluminum prices.
Fifth, the import and export tariffs, the impact of the international exchange rate, the international trade of aluminum six in general to the dollar price and settlement, the trend of the dollar in recent years, the impact of aluminum prices is obvious. The impact of import and export tariffs on aluminum shell prices is particularly acute in China.
Six, aluminum extrusion shell production process improvement and innovation on the impact of aluminum prices, the computer technology in the rapid application of aluminum electrolysis industry, led to the electrolysis process in-depth study of the physical field and the establishment of mathematical models, so that electrolysis The design of the tank is more reasonable and the capacity of the tank is greatly increased.