What is natural sand?

Author:Chang'an Street Knowledge Time:2022.08.03

On August 3rd, according to the website of the Ministry of Commerce, in response to "the company's concern, is there any adjustment of the natural sand policy of the export of Taiwan?" Asked, the Ministry of Commerce responded: "According to relevant laws, the decision to suspend natural sand to Taiwan in Taiwan. Export. Related measures will be implemented from August 3, 2022. "

Public information shows that natural sand is formed by natural conditions (mainly rocky). Rock particles with a particle size of less than 5mm, including natural sea sand, lake sand, river sand, or crushed stone sand (that is, the natural split of minerals is the natural division of minerals as a natural split of minerals as a natural division of minerals. Small sand grains).

According to the "Import and Export Tax of the People's Republic of China (2020)" and "Export and Export Taxes' Comments on Products and Style (2017)", in addition Natural sea sand, lake sand, river sand, or crushed gravel sand (that is, the natural split of the minerals with small sand grains), but excluding sand and powder made by artificial (eg, crushing) To.

mainly include:

First, silicon sand and quartz sand are used in the construction industry, glass industry or clean metal.

Second, soil sand, including kaolin sand, is mainly used for casting mold and refractory products.

Third, long stone sand, used in the ceramic industry. The natural sand that is hot to remove impurities is still classified as the item of this product.

In fact, this is not the first time that the mainland has suspended the export of natural sand to Taiwan.

In August 2005, the mainland proposed a macro -control policy for the export of "high pollution, high energy consumption, resource (two highs and one assets)". Natural sand belongs to the category of resource products. For the need to protect resources and environment and achieve sustainable economic development, the Ministry of Commerce will issue Announcement No. 87 with the General Administration of Customs, announcing that it will restore natural sand exports from March 1, 2007 to the restoration of natural sand exports. measure.

According to the 2007 documents of the Ministry of Commerce, more than 90%of the natural sand inlet in Taiwan at that time came from the mainland. After the export of natural sand on the mainland, Taiwan's sand and gravel operators and relevant parties reported to the mainland through various channels. Due to the shortage of natural sand resources on the island, the supply of natural sand was insufficient and prices rose, and the construction industry and the overall economic development were greatly affected.

In order to benefit the economic development and people's livelihood needs in Taiwan, the Ministry of Commerce released the "Application Procedure and related matters for the Natural Sand Export License of Taiwan" on March 7, 2008, announcing that it will officially restore natural sand from March 10th from March 10th Exit to Taiwan.

Zheng Youping, a professor at Taipei University, said in an interview with CCTV that the demand for normal sand and gravel in Taiwan a year was 66 million square meters, about 90 million tons of total demand, and one -third of them came from the river. One -third of the mining of sand comes from the mining of sand and underground stones in the island, and one third of the remaining is imported from mainland China.

In addition to the construction industry, sand is also the main raw material of the semiconductor industry. The chip has experienced continuous iterative upgrades since its birth and development. Only one main material has not changed, that is, wafers. Pure silicon elements to make a silicon crystal rod. After that, a series of procedures such as photographing, grinding, polishing, and slicing are then pulled out of the single crystal silicon crystal rod, and finally cut into thin wafers.

Its source silicon is refined from quartz sand. However, compared to the construction industry, the semiconductor industry is small.

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