Mining in Japan

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Mining in Japan was a rapidly declining industry in the 1980s. Domestic coal production shrank from a peak of 55 million tons in 1960 to slightly more than 16 million tons in 1985, while coal imports grew to nearly 91 million tons in 1987. Domestic coal mining companies faced cheap coal imports and high production costs, which caused them chronic deficits in the 1980s. In the late 1980s, Japan's approximately 1 million tons of coal reserves were mostly hard coal used for coking. Most of the coal Japan consumed is used to produce electric power.

Japanese coal is found at the extreme ends of the country, in Hokkaidō and Kyūshū, which have, respectively, 45 and 40 percent of the country's coal deposits. Kyūshū's coal is generally of poor quality and hard to extract, but the proximity of the Kyūshū mines to ports facilitates transportation. In Hokkaido, the coal seams are wider and can be worked mechanically, and the quality of the coal is good. Unfortunately, these mines are located well inland, making transportation difficult. In most Japanese coal mines, inclined galleries, which extended in some places to 9.71 kilometers underground, were used instead of pits. This arrangement is costly, despite the installation of moving platforms. The result is that a miner's daily output is far less than in Western Europe and the United States and domestic coal costs far more than imported coal.

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[edit] Mining

As the coal mining industry declined, so did the general importance of domestic mining to the whole economy. Only 0.2% of the labor force was engaged in mining operations in 1988, and the value added from mining was about 0.3% of the total for all mining and manufacturing.

Domestic mining production supplies an important quantity of some nonmetals: silica sand, pyrophyllite clay, dolomite, and limestone.

Domestic mines are contributing declining shares of the country's requirements for some metals: zinc, copper, and gold. Almost all of the ores used in the nation's sophisticated processing industries are imported.

[edit] Nonferrous metals

The nonferrous metals industry fared very well in the late 1980s, as domestic demand for these metals reached record levels. Japan's consumption of the main nonferrous metals, such as copper, lead, zinc, and aluminum, was the second highest in the non-communist world, after the United States.

In 1989, sales of copper products exceeded 1.5 million tons for the first time. Production of electric wire and cable accounted for 70% of Japan's copper demand; brass mills used the other 30%. Both areas experienced sharp growth, as did the demand for aluminum.

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