Preventing Global Warming

Global Warming Prevention Policy and Framework

We set ourselves clear targets in each sector, and for each facility, and are constantly working to reduce CO2 emissions, with the aim of minimizing levels of greenhouse gases emitted as a result of our business activities. We are also committed to actively developing and supplying products and services that will contribute to the creation of a low-carbon society.
As well as CO2 from energy sources, our cement operations also produce CO2 emissions as a result of the thermal decomposition of limestone, the main raw materials in cement production. Any tightening of regulations on greenhouse gas emissions in the future (including emissions trading schemes) could therefore pose a considerable financial risk. At the same time however, demand for technologies and products that will help to save energy and reduce CO2 emissions is expected to increase, which could create more business opportunities for Mitsubishi Materials Group in the future.
The Global Environment and Energy Committee (chaired by the President and consisting of members of the Corporate Strategy Committee) plays leading role with regard to strategic initiatives in response to global warming-related risks and opportunities such as these from a comprehensive, medium- to long-term perspective.

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Comprehensive Initiatives Aimed at Preventing Global Warming and Establishing a Recycling-Oriented Society

We have set out a vision aimed at becoming "the leading business group committed to creating a sustainable world through materials innovation, with use of our unique and distinctive technologies, for People, Society and the Earth." With this vision in mind, and taking into account our broader goal of creating a sustainable society, we have set ourselves targets for the prevention of global warming, and are working on a comprehensive range of initiatives to achieve those targets, alongside targets aimed at helping to establish a recycling-oriented society.

Targets for 2020 and Results/Progress in FY2017

☆☆☆☆ :100% or higher achievement of milestones at the end of fiscal 2016 for achieving the 2020 targets,
☆☆☆ :Between 80% and 100% achievement,
☆☆ :Between 50% and 80% achievement,
☆:Less than 50% achievement

[Cement] All facilities (Aomori, Iwate, Yokoze, Kyushu, Higashitani)

Improve energy efficiency steadily through the installation of energy saving equipment. Promote the use of waste and byproducts from other industries as alternative materials for cement

Preventing global warming
Targets Results/Progress
Energy consumption per unit Reduction of 1.2% (compared to FY2011) Increase of 1.4%
☆
Creating a recycling-oriented society/contributing to the environment
Targets Results/Progress
Alternative waste/byproducts per unit 435 kg per ton (Baseline: 406 kg per ton) 434 kg/t
☆☆☆☆
Percentage of alternative thermal energy Increase of 2% (compared to FY2011) Reduction of 1.9%
☆

[Metals] Naoshima Smelter & Refinery

Install high-efficiency equipment, and upgrade or install heat recovery and other such equipment at copper smelting facilities, in order to improve energy efficiency. Cater to growing volumes of E-Scrap overseas, reinforce pre-treatment facilities, and step up recycling operations.

Preventing global warming
Targets Results/Progress
Energy consumption per unit Reduction of 1% per year (14% overall reduction compared to FY2006) Compared to FY2006 Increase of 7.3%
☆
Creating a recycling-oriented society/contributing to the environment
Targets Results/Progress
Volume of E-Scrap processed Over 100,000 tons per year 96,000 tons/year
☆☆☆

[Metals] Sakai Plant

Upgrade equipment to energy saving models as part of manufacturing processes for copper and brass materials, copper alloys and processed copper products.

Preventing global warming
Targets Results/Progress
Energy consumption per unit Reduction of 1% per year (14% overall reduction compared to FY2006) Compared to FY2006 Increase of 0.4%
☆
Creating a recycling-oriented society/contributing to the environment
Targets Results/Progress
Waste oil/acid Reduction of 40% (compared to FY2006) Increase of 127%
☆

[Advanced Materials & Tools] Tsukuba Plant

Upgrade water chillers and heaters as part of air conditioning systems, and other equipment, to energy saving models in the manufacturing process for cemented carbide tools, and improve the overall efficiency of production equipment.

Preventing global warming
Targets Results/Progress
Energy consumption per unit Reduction of 20% (compared to FY2006) Increase of 23.6%
☆
Creating a recycling-oriented society/contributing to the environment
Targets Results/Progress
Scrap generated Reduction of 40% (compared to FY2010) Reduction of 7.7% (milestone: 7.3)
☆☆☆☆

[Advanced Materials & Tools] Gifu Plant

Upgrade compressed air systems as part of the manufacturing process for cemented carbide tools, reduce liquid waste through measures to prevent leeks, and focus on development of environmentally friendly products.

Preventing global warming
Targets Results/Progress
Energy consumption per unit Reduction of 15% (compared to FY2006) Reduction of 18.0%
☆☆☆☆
Creating a recycling-oriented society/contributing to the environment
Targets Results/Progress
Incorporate industrial waste indicators (volume of industrial waste produced per production value) into each medium-term plan, and continue to achieve 100%. Reduction of 24.2% compared to benchmark (milestone: 24.2)
☆☆☆☆
Continue to achieve targets for the number of certified environmentally friendly products set out in each medium-term plan. New general purpose solid drill (target: 1) → 0 *Under development
CBN insert (materials) (target: 1) → 0 *Pending certification
☆

[Advanced Materials & Tools] Akashi Plant

Reduce losses as part of the manufacturing process for cemented carbide products, through TPM activities, and improve wastewater processes.

Preventing global warming
Targets Results/Progress
Energy consumption per unit Reduction of 10% (compared to FY2011) Increase of 2.3%
☆
Creating a recycling-oriented society/contributing to the environment
Targets Results/Progress
COD load No more than 1 ton per year 0.519 tons/year
☆☆☆☆

[Electronic Materials & Components] Yokkaichi Plant

Upgrade refrigeration systems and other equipment to energy saving models as part of the manufacturing process for silicon products, and improve treatment processes for wastewater.

Preventing global warming
Targets Results/Progress
Energy consumption per unit Reduction of 1% per year (14% overall reduction compared to FY2006) Compared to FY2006 Increase of 15.8%
☆
Creating a recycling-oriented society/contributing to the environment
Targets Results/Progress
Industrial waste generated per unit (tons per ton- products)
Reduction of 56.3% (compared to FY2006)
Reduction of 46.6%
☆☆☆☆

[Electronic Materials & Components] Ceramics Plant

Upgrade air conditioning systems and other equipment to energy saving models as part of the manufacturing process for electronic devices. Develop commercial temperature sensors for motorcycles.

Preventing global warming
Targets Results/Progress
CO2 per unit Reduction of 30.8% (compared to FY2006) Reduction of 39.6%
☆☆☆☆
Creating a recycling-oriented society/contributing to the environment
Targets Results/Progress
Number of environmentally friendly products At least one per year 3 product/year (Sensors: 2, antennas: 1)
☆☆☆☆

[Electronic Materials & Components] Sanda Plant

Upgrade coolant water systems and other equipment to energy saving models as part of the manufacturing process for functional materials. Continue to develop next generation components for high efficiency inverters.

Preventing global warming
Targets Results/Progress
Energy consumption per unit Reduction of 1% per year (15% overall reduction compared to FY2006)
* Specific to this plant
Compared to FY2006 Reduction of 6.2%
☆☆
Creating a recycling-oriented society/contributing to the environment
Targets Results/Progress
Develop next generation components for high-efficiency inverters (Effect of reduction in CO2 emissions when using products: at least 3 times that in FY2009) 1.1 times
☆

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Reduction Initiatives During Fiscal 2017

Progress towards targets in FY2017

Out of nine areas covered under our target of "preventing global warming," we achieved 100% or higher compared to our milestones in fiscal 2017 in two areas, but achieved less than 80% in the remaining seven areas.
Out of eleven areas covered under our target of "creating a recycling-oriented society/contributing to the environment," we achieved 80% or higher in seven areas, but achieved less than 50% in the other four areas.
The most common reason for achieving less than 50% was that operating conditions and/or external environment have changed from expectations at the time when targets were set. We are currently looking into ways of achieving targets at facilities with lower levels of achievement.

Major Initiatives in Each Sector

We regard it as a top priority to save energy wherever possible at our manufacturing facilities and plants. That is why we are so committed to energy saving activities. Specific activities include switching fuels, making effective use of untapped energy, upgrading processes and equipment, installing high-efficiency equipment, optimizing device specifications, and reviewing equipment controls and operating practices. We are constantly working to save energy at smaller facilities too, including Head Office, branches, sales offices and research facilities, through measures such as installing LED lighting.

Cement

We are working to reduce power consumption, through measures such as ensuring adequate mill maintenance, reviewing maintenance of exhaust heat power generation systems, increasing electrical equipment efficiency, and switching to LED lighting, and to improve energy efficiency through initiatives such as increasing the amount of alternative thermal energy sources that we use, and making energy-saving upgrades to burning equipment.

Metals

We are working to reduce power consumption, through measures such as saving energy from compressors and related equipment, increasing efficiency from transformers and motors, and switching to LED lighting, and to improve energy efficiency through initiatives such as reviewing operations for individual furnaces, in order to reduce fuel oil consumption.

Advanced Materials & Tools, Electronic Materials & Components

We are working to reduce power consumption, through measures such as improving water pump controls, saving energy from air conditioning, refrigeration, compressors and related equipment, installing higher efficiency electrical equipment, switching to LED lighting, and upgrading various other processes, and to improve energy efficiency through initiatives such as optimizing controls on boilers and heat recovery equipment.

CO2 Derived from Energy Sources (nonconsolidated)*

CO<sub>2</sub> Derived from Energy Sources (nonconsolidated)

* CO2 derived from non-energy sources comes mainly from limestone, which is used as a raw material. As it is difficult to substitute or reduce volumes of limestone, however, our emissions target covers CO2 emissions derived from energy sources, which can be reduced by energy saving initiatives.

Total greenhouse gas emissions (nonconsolidated + main consolidated subsidiaries)*

Total greenhouse gas emissions (nonconsolidated + main consolidated subsidiaries)

Breakdown of Total Emissions for Fiscal 2017*[Thousand tons CO2 equivalent]

Category Non-consolidated Domestic group
companies
Overseas group
companies
Total
companies
Total 7,793 1,683 2,697 12,173
SCOPE 1
(direct)
From energy sources (fuel, etc.) 2,795 577 973 4,344
From non-energy sources From processes 3,983 201 1,133 5,318
From waste 396 258 33 687
Greenhouse gases other than CO2 22 35 5 63
(Reference) Total from non-energy sources 4,402 495 1,172 6,068
Subtotal 7,196 1,072 2,145 10,412
SCOPE2
(indirect)
From energy sources (power, etc.) 597 612 552 1,761
(Reference) Total from energy sources 3,392 1,189 1,525 6,105
  • * "Group companies" includes 115 consolidated subsidiaries (65 domestic, 50 overseas).
  • * The above data has been calculated in accordance with Version 4.3 of the Manual for Calculating and Reporting Greenhouse Gas Emissions.

Logistic Initiatives

Our CO2 emissions from logistics for fiscal 2017 totaled 43,428 tons for Mitsubishi Materials (up 1,055 tons from the previous year), and 77,685 tons on a consolidated basis*1 (up 1,625 tons). Energy consumption per unit*2 meanwhile came to 15.87 kiloliters per million ton-kilometers for Mitsubishi Materials (same as the previous year), and 19.83 kiloliters per million ton-kilometers for the group as a whole (an improvement of 1% from the previous year).
We are working on initiatives such as promoting a modal shift and improving shipping efficiency by road, as we continue to optimize logistics throughout the group and minimize the resulting impact on the environment.

  • *1 Consolidated figures refer to six companies classified as "Designed shippers," accounting for over 90% of emissions among domestic group companies.
  • *2 Refers to the amount of energy consumed in kiloliters crude oil equivalent (kl) divided by transportation in ton-kiloliters (million ton-kilometers)

CO2 emissions according to mode of transport Changes in CO2 emissions[Unit: Tons CO2]

  FY2016
Mitsubishi Materials Group companies*1
Total 42,373 33,687
Road 7,959 26,400
Rail 0 24
Ocean 34,359 7,263
Air 55 0
  FY2017
Mitsubishi Materials Group companies*1
Total 43,428 34,257
Road 8,224 26,459
Rail 1 32
Ocean 35,143 7,766
Air 59 0

Seventh Eco Contest

We have been running an award scheme to promote activities at facilities throughout the Mitsubishi Materials Group since fiscal 2011, aimed at preventing global warming, preserving resources, and protecting the environment. The results of our fiscal 2017 contest are outlined on the right.

Grand Prize (Facility): Gifu Plant, Universal Can Corporation

Having set out a policy of reducing environmental impact, promoting energy saving activities, and reducing industrial waste, the Gifu Plant has been implementing its own "Challenge R" activities and has made a significant contribution in areas such as reducing environmental impact.
Specifically, the plant has achieved concrete results through energy saving activities in relation to fans, pumps and compressors, efforts to minimize waste by reducing waste coolant and recycling waste oil, and resource saving initiatives based on improving product yield and collecting used drinks cans.

Grand Prize (Activity): Sambo Plant, Mistubishi Shindoh Co., Ltd.

The Sambo Plant has its own Energy Saving Committee, which meets every month to identify key themes relating to saving energy. Once the potential benefits of investment have been discussed in detail, the committee files a request to launch an energy-saving project. A prime example of a successful energy-saving initiative was switching to large motor to inverter types, which have had a significant effect on reducing revolutions when motors are running with no load. In addition to capital investment, the plant has found ways to save energy based on other new concepts, including reducing standby power consumption through energy saving patrols, and shutting down low-frequency induction furnaces when cold. The plant also holds its own Energy Saving Contest. Entries are profiled and awards are presented to the most excellent at an event in front of the entire workforce, in an effort to raise energy saving awareness and cost consciousness.

Recovery and Underground Storage of CO2

photoOutline of CCS as part of demonstration testing in Tomakomai (courtesy of Japan CCS Co., Ltd.)

photoCO2 recovery plant (courtesy of Japan CCS Co., Ltd.)

We have been keeping a close eye on new carbon dioxide capture and storage (CCS) technology, capable of isolating and recovering CO2 from production activities and storing it underground, rather than releasing it into the air. In May 2008, we invested in Japan CCS Co., Ltd. , which was established with the aim of developing and conducting feasibility studies into the relevant technology. Through Japan CCS, we intend to harness outstanding technologies and human resources that we have built up as a group over many years, in areas such as geological assessment, in order to participate in large-scale CCS demonstration testing in Tomakomai and studies into suitable locations for CO2 storage. We also signed up to an environmentally friendly CCS testing project headed by the Ministry of the Environment in fiscal 2017, and will be contributing to assessment studies for CO2 storage.

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