TAIYO YUDEN

Performance

We report efforts and achievements for the environmental load in FY 2018 indicated in the page of "Environmental Aspect in Corporate Activities."
The following report covers TAIYO YUDEN CO., LTD.: six sites, and its domestic and overseas consolidated subsidiaries.

Scope

TAIYO YUDEN CO., LTD. (Japan)
Takasaki Global Center / Haruna Plant / Nakanojo Plant / Tamamura Plant / Yawatabara Plant / R&D Center
Consolidated Subsidiary (Japan)
TAIYO YUDEN CHEMICAL TECHNOLOGY CO., LTD. / TAIYO YUDEN TECHNO SOLUTIONS CO., LTD. / FUKUSHIMA TAIYO YUDEN CO., LTD. / NIIGATA TAIYO YUDEN CO., LTD. / TAIYO YUDEN ENERGY DEVICE CO., LTD. / WAKAYAMA TAIYO YUDEN CO., LTD. / TAIYO YUDEN Mobile Technology Co., Ltd. (Head Office & Tokorozawa Plant) / Kankyo Assist Co., Ltd.
Consolidated Subsidiary (Other Countries)
KOREA KYONG NAM TAIYO YUDEN CO., LTD.
TAIYO YUDEN (GUANGDONG) CO., LTD.
TAIYO YUDEN (PHILIPPINES), INC.
TAIYO YUDEN (SARAWAK) SDN. BHD.

Compliance, Monitoring

We report the result of compliance and monitoring at each site in FY 2018.

Data by Site

GHG, Energy

There are three categories for greenhouse gases (GHG) emitted during the course of business activities: Direct emissions from use of energy (SCOPE 1), Indirect emissions from energy use (SCOPE 2) and Indirect emissions other than from energy use (SCOPE 3). GHG emissions cannot be easily measured, so we concentrate on energy use and reducing energy consumption.

Results of Efforts to Reduce Greenhouse Gases and Energy Consumption

In FY2018, the amount of GHG emitted by the entire group decreased by 3,000 t-CO2e compared to FY2017. Specifically, the sites in Japan decreased their emissions to 188,000 t-CO2e from 194,000 t-CO2e in FY2017, while the sites outside Japan increased to 306,000 t-CO2e from 303,000 t-CO2e in FY2017 (see G1).
The amount of energy used by the entire Group increased by 3,000 kL compared to FY2017. Specifically, the sites in Japan increased their usage to 95,000 kL from 94,000 kL in FY2017, while the sites outside Japan increased to 131,000 kL from 129,000 kL in FY2017 (see G2).
Energy usage is broken down into 92% for SCOPE 2 and 8% for SCOPE 1 (see G3).
Improvement in energy intensity, which we aim to achieve in the medium term environmental target, was 19.8% in FY2016 and FY2018 on average (see G4).
We will continue to review production processes with a focus on core products to further improve the production efficiency and lower energy usage.

  • Note: Changes in the conversion factor have a major impact on GHG calculations, so the medium environmental targets were set according to energy consumption (crude oil equivalent), a factor that has measure able results.
  • Note: GHG emissions are calculated using GHG Protocol factors (electricity by country).
  • Note: GHG emissions in Japan have been corrected after reviewing the electricity-CO2 conversion factor.

G1: GHG Emissions
(calculated from total energy consumption)

G2: Energy Consumption
(crude oil equivalent)

G3: Breakdown of Energy Consumption
(crude oil equivalent)

G4: Average Energy Consumption Per Unit
(results compared to target)

Efforts on Indirect Emissions Other than from Energy Use (SCOPE 3)

In recent years, there has been a growing demand from our stakeholders to disclose information on SCOPE 3 emissions, in addition to information on SCOPE 1 and SCOPE 2 emissions. To meet this demand, we are working to obtain a clear picture of our SCOPE 3 emissions.
We have ascertained that our GHG emissions from purchased goods and services in FY2018 were 345,000 tons-CO2e (group), 7,608 tons-CO2e from commutes (domestic sites), 462 tons-CO2e from business trips (domestic sites), 5,651 tons-CO2e from disposal and processing of waste (domestic sites), and 39,517 tons-CO2e from transporting products (group).

Waste, Water

We strive to reduce environmental effect on biodiversity while coexisting with nature, and we use the 3Rs (reduce, reuse, recycle) to reduce waste and make effective use of water resources.

Results of Reducing Waste

The amount of waste generated in FY2018 by the entire group increased to 23,300 t from 22,600 t in FY2017. This was caused by an increase in production volume and other factors (see G1).
The waste (including valuables) mainly consists of waste plastic, sludge, and waste oil (see G2).
The final amount of waste disposed of in Japan decreased to 3 t from 5 t in FY2017. The waste recycling rate, which we aim to improve in the medium term, was 99.9% (see G3).
The final amount of waste disposed of outside Japan decreased from 1,900 t in FY2017 to 1,800 t (see G4).
Improvement in waste generation per unit of production, which we aim to achieve in the medium-term environmental target, was 8.6% on average for FY2016 - FY2018 (see G5). The final amount of waste disposed of per unit of production was improved by 35.8% on average for FY2016 - FY2018 (see G6).
We will continue working to reduce waste volumes, boost in-house recycling rates, and recycle waste into resources at our overseas sites.

G1: Amount of Waste Generation

G2: Breakdown of Waste

Definition of waste: general waste, industrial waste, and items having resale value.

G3: Domestic Final Disposal Volumes and Recycling Rates

G4: Overseas Final Disposal Volumes and Recycling Rates

G5: Average Waste Generation Per Unit
(results compared to target)

G6: Average Final Disposal Volume Per Unit
(results compared to target)

Resource Recycling Efforts

99.9% of the waste generated in the course of our business activities is recycled and reused as resources in society. However, we are also promoting efforts to reuse waste for the business activities of the Taiyo Yuden Group.
For solvent A, which is the most frequently used solvent in our business activities, 13% of the amount used is recycled waste solvent.
In addition, for reels that are used for packaging electronic parts, strict quality checks are performed and 14% of all the reels are recycled reels.

Results of Water Resource Efforts

The water usage of the entire group decreased from 4,581,000 m3 in FY2017 to 4,422,000 m3 in FY2018. Specifically, the sites in Japan decreased their usage to 1,709,000 m3 from 1,717,000 m3 in FY2017, while the sites outside Japan also decreased to 2,713,000 m3 from 2,864,000 m3 in FY2017 (see G7).
Improvement in water usage per unit of production, which we aim to achieve in the medium-term environmental target, was 20.6% on average for FY2016 - FY2018 (see G8).
The amount of recycled water was 1,203,000 m3.

G7: Water Use

G8: Average Water Use Per Unit
(results compared to target)

Environmental action case

Reducing Greenhouse Gas Emissions

Improved compressor operation efficiency
[Tamamura Plant, FUKUSHIMA TAIYO YUDEN CO., LTD., and TAIYO YUDEN (GUANGDONG) CO., LTD.]

We run multiple compressors to supply compressed air to production lines and are making various efforts to increase their operation efficiency.
Tamamura Plant began to use compressors that use an inverter to control motor speed.
FUKUSHIMA TAIYO YUDEN CO., LTD. and TAIYO YUDEN (GUANGDONG) CO., LTD.
reduced the load of compressors by reducing their air discharge pressure.
These improvement efforts resulted in optimal compressor operation reducing electricity consumption.
The amount of GHG emissions reduced as a result was 833 t-CO2e per year.
Compressors to supply compressed air

Reduced energy consumption of freezers by improving operation efficiency
[Haruna Plant and KOREA TONG YANG YUJUN CO., LTD.]

Haruna Plant used to operate three freezers alternately, but upon examining their operation status, integrated them into a modular inverter chiller, which reduced energy consumption.
KOREA TONG YANG YUJUN CO., LTD. reduced energy consumption of a freezer by updating it to a low-pressure centrifugal chiller with better operation efficiency.
The amount of GHG emissions reduced as a result was 400 t-CO2e per year.
Modular inverter chiller

Reduced energy consumption of air conditioning systems by using a heat shield paint
[TAIYO YUDEN CHEMICAL TECHNOLOGY]

A plant roof has nothing to block direct sunlight. Its surface gets hot making the inside hot too. As a result, air conditioning systems have to be set higher which consumes extra energy. To suppress the increase of the roof temperature, we coated the entire roof with a special heat shield paint. This has lowered the surface temperature by approximately 8°C and reduced the energy used by the air conditioning systems.
The amount of GHG emissions reduced as a result was 4 t-CO2e per year.
Roof coated with a heat shield paint

Reducing Water Use

Water conservation by recycling wastewater [TAIYO YUDEN Mobile Technology]

TAIYO YUDEN Mobile Technology has launched a system in which water used for cutting, which used to be discharged, is collected, cleaned by filters, and reused in the production process. This significantly reduced the amount of water used for cutting.
The amount of water reduced as a result was approximately 54,000 t per year.
Cutting water recovery system

Biodiversity action case

Mangrove Tree Planting [ TAIYO YUDEN (PHILIPPINES) ]

In FY2008, TAIYO YUDEN (PHILIPPINES) began planting mangrove seedlings on Olango Island, near Mactan Island where the company is located. Every year 10,000 mangrove trees are planted.
February 2018
February 2018

Volunteering for Forest Maintenance [ TAIYO YUDEN ]

Since FY2007, TAIYO YUDEN has participated in a forest maintenance project run by Gunma Prefecture, involving corporate volunteer work. Every year, volunteers from TAIYO YUDEN have helped to maintain the "Taiyo no Mori" forest, joining with prefectural government employees to trim underbrush and thin trees.
November 2018
November 2018

Extermination of alien species (red swamp crawfish) [ NIIGATA TAIYO YUDEN ]

The crayfish is included in the list of designated Invasive Alien Species because they have disruptive effects on Japan's indigenous species including aquatic organisms and plants.
NIIGATA TAIYO YUDEN leads a biodiversity conservation activity every year in which employees and their family members exterminate crayfish. They also exterminate alien plants such as daisy fleabanes.
June 2018
June 2018