英文摘要 |
Rare earth metals, comprising 17 elements in the periodic table, are essential raw materials for producing high-tech products such as electric cars, wind turbines, mobile phones and computers. In recent years, international prices of rare-earth metals have risen sharply due to export restrictions adopted by mainland China, which provides more than 90 percent of the global supply of these resources. In its twelfth Five-Year Plan (2011~2015), the mainland government has mapped out policies for restricting the extraction, use in export manufacture, and holding in reserve of rare-earth metals. These policies will continue to exert an impact on the global supply of rare-earth metals. Advanced countries in Europe, North America and North Asia have responded to this by actively instituting measures to recycle, replace and reduce use of rare-earth metals, as well as to open up new sources of supply. At present, there is little demand for rare-earth metals in Taiwan, where its use is mainly concentrated in the manufacture of permanent-magnet motors, polishing powder, and fluorescent agents. Hence, Taiwan will feel little direct impact from the rising prices of rare-earth metals, but will feel a greater indirect impact from the rising prices of materials and parts in which rare-earth metals are used. Since the prices of rare-earth metals can be expected to continue rising in the long term, Taiwan ought to strengthen the stockpiling and efficient use of these metals, and step up international cooperation in technology development, with a view to raising its self-dependency in rare-earth metals supply and softening the impact of undersupply in the international rare-earth metals market. |