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Komatsu's Environmental and Social Activities Data


Site Data (Japan)  Komatsu NTC Ltd.

Overview

Year of Establishment 1945
Location Nanto, Toyama Prefecture
Main Products Machine tools, laser process machines, wire saws
Site/Green Landscape (1,000 m2) 216/22
Number of employees 1,041
Date of ISO14001 certification acquisition June 1999
* The number of employees includes those working for Komatsu affiliates on the premises.
* The number of employees as of the end of March 2014.

Major Performance

Environmental impact Energy consumption
Item Actual value Item Actual consumption Converted to calorie equivalents (GJ)
Total CO2 emissions 7,753 t-CO2 Electricity 19,664 MWh 192,569
NOx total amount - kg Heavy oil A 0 kl 0
SOx total amount 0 kg Kerosene 1 kl 26
Total emissions of waste 2,073 t Light oil 27 kl 1,020
Amount recycled 2,020 t Town gas 0 Nkm3 0
Recycling rate 97.5 % LPG 43 t 2,182
BOD emissions 488 kg Other   0
COD emissions - kg Total   195,797
Wastewater 827,660 m3
Output of in-house power generation 65 MWh
* Refer to the Data on Environmental Impact Resulting from Business Activities for details on the methods used to calculate amounts.
* Total emissions of waste are expressed as a composite of the amount recycled (excluding valuables) and the amount disposed.
* Recycling rate is calculated by dividing the amount recycled (including valuables) by the amount generated (including valuables).
* Total emissions of BOD and COD are calculated by multiplying the average concentration by the amount of wastewater.

* The heat energy conversion factor is calculated in keeping with Greenhouse Gas Emission Calculation - Reporting Manual, which is based on the act on Promotion of Global Warming Countermeasures.

Compliance Conditions to Major Regulations

Air
Item Unit Facility Regulated value Actual value
Nitrogen oxides (NOx) ppm N/A - -
  ppm      
  ppm      
  ppm      
Sulfur oxides (SOx) -      
Soot and dust g/m3N N/A - -
  g/m3N      
  g/m3N      
* Regulated values are in accordance with the Air Pollution Control Law and local regulations.
Wastewater
Item Regulated value according to the Water Pollution Control Law Regulated value Actual value
Maximum Minimum Average
pH 5.8-8.6 5.8-8.6 7.5 6.4 6.8
BOD (Biochemical oxygen demand) 160 mg/l 160 1.7 ND 0.7
COD (Chemical Oxygen Demand) 160 mg/l - - - -
Suspended solids (SS) 200 mg/l 200 2.0 ND 1.1
Mineral oils 5 mg/l 5 ND ND ND
Copper 3 mg/l - - - -
Zinc 2 mg/l - - - -
Nitrogen 120 mg/l - - - -
Phosphorus 16 mg/l - - - -
Cadmium 0.1 mg/l - - - -
Lead 0.1 mg/l - - - -
Chromium (VI) 0.5 mg/l - - - -
Trichloroethylene 0.3 mg/l - - - -
Tetrachloroethylene 0.1 mg/l - - - -
Dichloromethane 0.2 mg/l - - - -
1,1,1-trichloroethane 3 mg/l - - - -
* Regulated values are in accordance with the Water Pollution Control Law and local regulations.
* ND ("not detected") indicates a value below the lower limit of detection.
* ND is considered to be the lower limit of detection when calculating the average.
* Other items are confirmed to be below the regulated value.
* Data for Komatsu NTC Ltd. include data for the Toyama plant and the Fukuno Plant.