慶應義塾大学 商学部・商学研究科

新保一成 研究室

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NIC 1998 - code 1010

Structure

Hierarchy

  • Section: C - Mining and quarrying
  • Divsion: 10 - Mining of coal and lignite; extraction of peat
  • Group: 101 - Mining and agglomeration of hard coal
  • Class: 1010 - Mining and agglomeration of hard coal

Class note

  • Includes under ground or open-cut mining of anthracite, bituminous or other hard coal; cleaning, sizing, pulverizing and other operations to improve the quality; operations to recover hard coal from culm banks; manufacture of briquettes or other solid fuels consisting chiefly of hard coal and in-situ gasification of coal.

Sub-class

  • 10101
    • Activities
      • Open cut(strip) mining of coal
  • 10102
    • Activities
      • Underground mining of coal

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