Environmental Management: Promoting environmental activities by cooperating with business partners globally

The environmental loads generated by Daihatsu’s business activities include those from its subsidiary companies and suppliers; for this reason, environmental conservation activities must be implemented by the entire group.

We categorize affiliated companies based on their capital relationship and business type, and promotes environmental management for the entire Daihatsu Group accordingly

Companies subject to consolidated environmental management

Daihatsu hosts Group-wide environmental liaison meetings twice a year, to encourage group companies to share various forms of environmental information and to promote mutual learning.
Going forward, Daihatsu will shift from Japan-centric meetings to global environmental meetings.

Support for building of Environmental Management Organization.

Not to speak of environmental consolidated production companies, Daihatsu recommends the introduction of Environmental Management System (ISO14001) to its investment and priority production companies and supports their activities to acquire the certification if requested. As of fiscal 2018, all domestic environmental consolidated production companies have acquired ISO14001 certification and continue to renew and maintain it.
All our production subsidiaries have updated their environmental management systems to the 2015 version of ISO14001, which reinforces the leadership responsibility of Top Management.
Daihatsu also provides support to introduce ISO 14001 to its overseas production subsidiaries.

Maintaining and improving environmental performance across various fields

In addition to carrying out CO2 emissions reduction activities, Daihatsu will also maintain and improve its environmental performance across a variety of fields, including waste, water usage, water quality, and VOC emissions.

Waste and water usage

Water quality: purifying and using waste water effectively

Standards for plant waste water vary according to where the waste water is discharged, such as public rivers or sewers, and the local governments in the plants are situated.

At all its plants, Daihatsu ensures that, before being discharged, its waste water is purified to cleaner levels than required by waste water standards.

At Shiga (Ryuo) Plant, we have built Aqua Center—a large-scale plant waste water purification facility—to guarantee the quality of water that is discharged into Lake Biwa. Aqua Center purifies plant waste water to an almost drinkable level before discharged it into the lake.

For its painting processes, which use large volumes of water, the Daihatsu Group promotes water usage reduction activities at its vehicle production sites. In the pre-treatment and electrodeposition cleaning processes, efforts are made to ensure that water is effectively used in the cleaning process, that water is fully reused, and that water usage is thereby reduced.

At Shiga (Ryuo) Plant, water cleaned at the plant’s waste water processing facilities are reused for its wet dust collectors.

At its Indonesian and Malaysian production bases, they take the greatest care to ensure that its plant waste water has no impact on downstream drinking water collection sites.

Shiga (Ryuo) Plant Aqua Center No.3

Waste water after it has been purified at the Aqua Center

Properly managing and reducing environmentally load substances in the production process

In its production activities, Daihatsu properly manages and reduces environmentally load substances in with its Environmental Action Plan and in accordance with all relevant laws and regulations.

With regard to volatile organic compounds (VOCs)*, which are a cause of air pollution, we have reduced its atmospheric emissions according to its Environmental Action Plan.

With regard to chemical substances in its production activities, we follow all relevant laws and regulations to ensure that banned substances are not used.

* Common VOCs include toluene, xylene, and other substances found in paints.

≪Goals and results≫
With regard to atmospheric emissions of VOCs, which are a cause of air pollution, Daihatsu has carried out a variety of activities aimed at reducing emissions volumes in the painting process—which accounts for the majority of VOC emissions.

These include automating painting processes to improve coating efficiency, robotization, the use of electrostatic processes, and the recovery of thinners used to clean equipment.

In addition, as part of efforts to comprehensively reduce VOCs, Daihatsu Motor Kyushu Co., Ltd. now uses water-based paints for its mid- and top-coat paints.

In fiscal 2019, Daihatsu’s VOC emissions in the body painting process stood at 25.8 g/m2; this is a reduction of approximately 55% when compared to fiscal 2000 levels*.

*Average emissions per body surface area

The 6th Daihatsu Environmental Action Plan 2016–2020

Initiatives of environmental conservation and building a society in harmony with nature (production sites)

VOC emissions from body painting

Average emissions across all lines at Daihatsu Motor Co., Ltd. and Daihatsu Motor Kyushu Co., Ltd. production sites

Examples of VOC emissions reduction activities: post-treatment of exhaust gases in the painting process
In order to efficiently reduce VOC emissions, Daihatsu divides painting booths into high-density VOC and low-density VOC areas, and carries out appropriate processing of exhaust gases accordingly.

Copen Factory A Regenerative Thermal Oxidizer, a heat-absorbing combustion-type exhaust gas processing facility, is used in the painting process

Adoption of cartridges to supply paint to painting robots
By supplying paint to painting robots via cartridges instead of through pipes, Daihatsu eliminates the paint loss that used to result from cleaning pipes when changing colors, and so reduces VOC emissions.

Cartridges are used to supply paint to paint robots (Copen Factory)

Preventing air pollution: managing SOx and NOx emissions
The Air Pollution Control Act sets out regulatory exhaust gas values for every type of facility.

In order to prevent exhaust gases from its production sites from contributing to air pollution, Daihatsu regularly measures and monitors exhaust gases generated by its boilers and heaters, and ensures that both SOx and NOx concentrations remain significantly below regulatory values.

Green Purchasing Guidelines

In line with the Sixth Daihatsu Environmental Action Plan, the “Daihatsu Green Purchasing Guidelines” deal with a wide variety of environmental issues that ought to be of importance to companies in the present day and age.

In particular, the guidelines cover a broad spectrum of topics, including encouraging environmental management, reducing greenhouse gas emissions, mitigating impacts on water environments, promoting resource circulation, and establishing a society in harmony with nature.

Daihatsu will seek to ensure that its business activities are even more in harmony with global environments.

In order to achieve the goal, we believes the cooperation of its business partners is crucial, and we would like to ask its business partners to make further efforts its environmental activities.

We will swiftly review its environmental initiatives in response to regulatory and other changes in the business environment, and update its initiatives on its website accordingly.

Business partners will be notified of any changes, and Daihatsu kindly asks they adjust their activities in line with the latest updates.

Environmental Activities at Daihatsu’s Dealers

In addition to its production sites, Daihatsu also actively implements environmental measures—including energy-saving and resource-saving initiatives—at its dealers, to contribute to environmental conservation in the regions in which operates.

Daihatsu has formulated the “Daihatsu Clean Management Dealer Certification System”—an environmental certification system for Daihatsu dealer—and is gradually strengthening the environmental standards it requires of its dealers.

"Daihatsu Clean Management Dealer" Certification System.

Dealers that have satisfied the requirements of the Dealer Environmental Assessment (self-assessment) can apply to become Daihatsu Clean Management Dealers. Under this system, Daihatsu auditors carry out on-site assessments of the applicants’ environmental management systems and environmental conservation activities.

Dealers that satisfy the requirements of the on-site assessments are certified as “Daihatsu Clean Management Dealers”.

The certification is valid for three years; during this period, dealers improve their environmental activities through PDCA cycles—such as by carrying out annual self-assessments, and implementing improvements as necessary.

Going forward, As well as working to reduce CO2 emissions and waste volumes, Daihatsu will endeavor to improve the environmental performance of its dealers through mutual audits and other initiatives.