TAIYO YUDEN Group implements risk assessment based on expected safety, health,
and environmental impacts annually, and makes countermeasures to prevent occurrence of
risks.
Fire/explosion, and spillage/contamination of chemical substances affect on not only corporate
activities but stakeholders, thus we consider these risks are significant.
Appropriate Management of Chemical Substances
To ward off environment contamination with chemicals and adverse effects on human health, we have banned the use of forbidden substances, implemented a chemical management framework, and are working on reducing emission volumes.
Chemical Management Framework
The Taiyo Yuden Group has its own standards in place for chemical substance management, which define chemical substances that must not be used, must only be used in limited situations, and must be managed.
Target Chemicals
| Prohibited substances | Cadmium, compounds containing cadmium, mercury, compounds containing mercury, hexavalent chromium compounds, etc. |
|---|---|
| Substances to be restricted | Lead in ceramic/glass frit and piezoelectric bodies, tetrabromobisphenol A (TBBPA), polycyclic aromatic hydrocarbons (PAHs), and so on. |
| Substances to be managed | Toluene, REACH SVHC (substance of very high concern), xylene, etc. |
PRTR Law Compliance
In order to reduce the risks that chemicals impose on the environment, the Taiyo Yuden Group reports to the government the amounts of chemicals released to the environment (air, water, and soil), and waste chemicals transported and recycled under the Japanese Law for Pollutant Release and Transfer Register (PRTR). The government publishes the records and a database of these quantities making them widely available to members of the general public.
PRTR Restricted Substances
| Management No. | Chemical Substance Name | Emission (ton/year) |
Amount Transferred (ton/year) |
Amount Recycled (ton/year) |
|---|---|---|---|---|
| 82 | Silver and its water-soluble compounds | 0.0 | 5.3 | 4.1 |
| 87 | Chromium and trivalent chromium compounds | 0.0 | 1.3 | 0.4 |
| 300 | Toluene | 35.2 | 31.0 | 29.0 |
| 308 | Nickel | 0.2 | 3.4 | 94.8 |
| 309 | Nickel compounds | 0.8 | 6.1 | 7.4 |
| 405 | Boron compound | 0.3 | 0.5 | 0.0 |
| 438 | Methylnaphthalene | 0.1 | 0.0 | 0.0 |
| 460 | Tritolyl phosphate | 0.0 | 0.0 | 0.1 |
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*Note: Target chemical substances and their incoming amount shown refer to substances for which their incoming amount exceeds 1 ton in compliance with the PRTR Law.
Emission: This refers to the total emission into the atmosphere, water, and soil.
Amount Transferred: This refers to the amount whose disposal is outsourced to an industrial waste contractor outside the business facility concerned.
Ozone-depleting Substances
We do not use ozone-depleting substances in our production processes. Although we use HCFC as a coolant in air conditioners and other equipment, we carry out appropriate collection and disposal.
Preparation for Emergency
Various types of regularly scheduled training are implemented to respond to sudden accidents, disasters, and other risks, with the objectives of early discovery, rapid response, prevention and mitigation. The Taiyo Yuden Group reconfirms appropriate procedures and strives for continuous improvement.
Firefighting Training
Yawatabara Plant
We conducted initial firefighting training using fire extinguishers. (October 2025)
TAIYO YUDEN CHEMICAL TECHNOLOGY
We conducted water discharge firefighting training using outdoor fire hydrants. (July 2025)
TAIYO YUDEN (GUANGDONG)
We conducted fire extinguisher handling training using powder fire extinguishers. (June 2025)
Emergency Training for Spillage of Chemical Substances
Nakanojo Plant
We conducted recovery training on the basis of the assumption of a chemical substance leak. (December 2025)
TAIYO YUDEN (SARAWAK)
We conducted spill containment and recovery training on the basis of the assumption of a chemical substance leak during transportation. (July 2025)
ELNA (MALAYSIA)
We conducted spread prevention training assuming that a chemical substance leaked. (May 2025)
Evacuation and Medical Emergency Training
Haruna Plant
We conducted training on CPR procedures and the use of AEDs. (August 2025)
NIIGATA TAIYO YUDEN
We conducted evacuation drills on the basis of the assumption of an earthquake occurring at night. (November 2025)
KOREA KYONG NAM TAIYO YUDEN
We conducted training on transporting and handing over injured persons in the event of a fire with the supervision of the fire department. (October 2025)
Removing Soil Contamination
The investigation was conducted in accordance with the Soil Contamination Countermeasures Act at Haruna Plant, and countermeasures were implemented.
Environmental Accidents
No accidents that could affect the surrounding environment have occurred.
Measures for Prevention of Fire and Explosion
We have established our own voluntary standard on the three elements of combustion
(combustibles, oxygen, and heat sources) as prevention measures for fire and explosion, and we implement
measures and conduct management accordingly.
In addition, we conduct training on
firefighting/evacuation every year in preparation for the breakout of a fire.
No fire or explosion has
occurred.