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Komatsu's Environmental and Social Activities Enhancing Quality of Life

Mitigating Climate Change (Initiaves to Mitigate Climate Change in Business Operations) Reduction CO2 Emissions in Logistics

Lower CO2 Emissions for Global Transport
(Basic Unit of CO2 Emissions per Cargo Weight: kg-CO2/ton)

In 2011, Komatsu began improving its assessment of CO2 emissions from logistics operations for its 10 major international business locations.

Combined with the improvements that were started in domestic locations from 2006, we have now implemented improvements in logistic operations on a globally consolidated basis at all 25 business locations.

Domestic improvements include decreasing transportation distance through efficient use of the Kanazawa and Hitachi Naka Ports, and the expansion of coastal shipping to handle the long distance transport to the Tohoku area, which has been increasing since 2011. From FY2014, the expansion of railway use has been added to priority action items to improve the modal shift trend. As a result of continuing these initiatives in FY2015, we achieved a 2.6% improvement in basic units compared to the previous year. However, domestic CO2 emissions basic units worsened by 9.4% overall, largely due to an increase in average transport distance resulting from the decrease in overseas export loads and large model loads, as well as the basic unit fluctuation affected by the decrease in logistics efficiency.

In overseas, the U.S. alone showed a 1.5% improvements in logistics efficiency in basic units compared to the previous year, while the overall overseas results showed basic units of CO2 emissions deteriorating by 2.5%, being greatly affected by the load reduction due to the major production decrease in China and Asia.

■ Global Shipment CO2 Emissions Volume and CO2 Emissions Per Cargo Weight
Global Shipment CO2 Emissions Volume and CO2 Emissions Per Cargo Weight

CO2 Improvement for Domestic Transport
(Increase in Coastal Port Usage Rate)

(1) Increase in Kanazawa Port Usage Rate (Condition of Press Products)
■ Kanazawa Port Usage Rate
Kanazawa Port Usage Rate

In order to decrease domestic land transport distance, we are working on improving the usage rate of the local portóKanazawa Portófor export products produced at the Awazu and Kanazawa plants in the Hokuriku district.

In addition to the usual construction equipment products produced at the Awazu plant, from FY2014, the press products produced at the Kanazawa plant are also being managed and improved by using the Kanazawa Port usage rate as an index.

In FY2015, the Kanazawa Port usage rate for press products was greatly improved.

[Issue: Cases where Kanazawa Port cannot be used]
Issue: Cases where Kanazawa Port cannot be used

Since conventional ships do not stop at Kanazawa Port, in cases where the load was small, Kanazawa Port could not be used. In such cases, it became necessary to use land transport to get the load to Kobe in order to use conventional ships.

[Main Improvements]
  • 1) Medium-size Press: Use of RORO ships
  • 2) Large-size/Medium-size Press: Use of conventional ship charter by combining loads
  • 3) In September 2015, the full operation of Murphy Service started for the first time on the Japan Sea side of Honshu, and also for the first time a large-size RORO ship called at Kanazawa port. This meant that if the right load size could be arranged, a large-size RORO ships could be used instead of the conventional ships.
  • (At the first time port call of the large-size RORO ship 1,700 tons of Komatsuís large-size press was sent out to North America and Mexico.)
Press Units being loaded onboard

Press Units being loaded onboard

Loading onboard

Loading onboard

(2) Effects of the Kanazawa Port Usage Rate Improving (compared to FY2014)
  • 1) Reduction in land transport by truck trailer shipment: 350km/trip (compared to use of Kobe Port)
  • 2) Improvement in Basic Unit of CO2 Emissions per Cargo Weight (kg-CO2/ton): 5.9⇒4.4 (△24.5%)
  • 3) Reduction in Total CO2: △25 (t-CO2/year)

CO2 Improvement in Overseas Transport
(Use of Natural Gas Truck/Trailer)

At BKC(Thailand), a part of Komatsuís overseas group companies, the use of low environmental impact transport vehicles called NGVs (Natural Gas Vehicle) has become increasingly pervasive, with the NGV usage rate increasing to 51.1%. The resulting CO2 reduction has reached 282t-CO2 cumulatively (FY2012 ~ FY2015).

NGV Truck (Natural Gas Vehicle)

NGV Truck (Natural Gas Vehicle)

■ CO2 Reduction by NGV
CO2 Reduction by NGV