Managing Chemical Substances and Environmental Risks 

Murata strives to minimize environmental risks of business activities affecting the local community and to be ready for handling any problems promptly when they happen. To this end, we do our best to disclose information pertaining to such efforts including inviting local residents to company tours so that they can understand Murata's environmental conservation activities.

Avoiding Environmental Risk

Preventing Environmental Accidents and Pollution

We are aware of the significant environmental risk accompanying the use of chemical substances, and we are taking steps to avoid pollution. We take into particular consideration the degree and duration of environmental impacts when storing and transporting chemical substances within our facilities, applying four voluntary standards for proactive prevention.

We contract legally certified waste disposal specialists for the disposal of industrial waste in Japan and overseas, and we visit their processing facilities regularly to ensure proper treatment. We also conduct surveys to minimize the risk of soil pollution caused by ground deformations when constructing plants. 

We would like to note that in fiscal 2017, Murata was not involved in any serious environmental accidents or breaches of environmental laws and regulations, and we were not subject to any fines or penalties.

Voluntary Standards for Prevention of Environmental Accidents and Pollution (Equipment-Related)

  • Prohibition of Underground Storage Tanks
    In principle, storage tanks for new and waste fuels, organic solvents, and acids and alkalis, in addition to raw water tanks for wastewater treatment, will be located above ground. If it is unavoidable that a tank must be positioned underground, a double-walled tank must be used. 
  • Permeation Barrier Coatings
    Locations in which new and waste fuels, organic solvents, and acids and alkalis are handled will be provided with beds treated with a permeation barrier coating or made of stainless steel.
  • Prohibition of Underground Piping
    Pipes for transporting new or waste fuels, organic solvents, acids and alkalis, and waste liquids from industrial processes, will be located above ground.
  • Emergency Containment Structures
    Operational areas in which new liquids are received from tanker trucks, etc. or waste liquids are discharged will be provided with a structure that allows immediate containment of any leakage outside the area if an accident occurs.
Overhead piping in Wuxi Murata Electronics Co., Ltd.
Overhead piping in Wuxi Murata Electronics Co., Ltd.
Truck parking with pollution prevention in PHILIPPINE MANUFACTURING CO. OF MURATA, INC
Emergency shutdown valve at Anamizu Murata Manufacturing Co., Ltd. (Old company name: Anamizu Electronics Industries, Ltd. )
Emergency shutdown valve at Anamizu Murata Manufacturing Co., Ltd.

Communications with Local Residents about Environmental Risk

We consider minimizing the impact of our business activities on local communities to be one of the most important aspects of our corporate social responsibility, and we work hard to respond swiftly if a problem occurs.

In fiscal 2017, the Murata Group's plants received 17 complaints regarding noise and tree planting, and we quickly resolved these issues in consultation with local residents. 

We also strive to promote information disclosure, by such means as inviting local residents to tour around our operating sites, so that they can better understand our active environmental efforts.

Community tour of Sabae Murata Manufacturing
Community tour of Kanazu Murata Manufacturing

Community tour of Iwami Murata Manufacturing

Management of Chemical Substances

Looking towards the realization of sustainable social systems, Murata strives to provide products with minimal impact on the global environment.
In addition to complying with laws and regulations such as the RoHS Directive and the REACH regulations, we have established voluntary standards that incorporate consideration of global trends related to environmentally hazardous substances and requests from our customers. By means of the management system shown in the diagram below, we are actively working to reduce or eliminate the use of environmentally hazardous substances in our products.
We are also responding preemptively to the revision of laws relating to environmentally hazardous substances.
The current RoHS Directive restricts the content of six types of chemical substances in electrical and electronic devices marketed in the EU. The revised RoHS Directive that will go into effect on 22 July, 2019, will add restrictions on four types of designated phthalic esters.
Acting in advance of the revision of the RoHS Directive, Murata prohibited the use of designated phthalic esters in newly developed products from July 2017. We are also proceeding with preparations for replacing existing products that contain the designated phthalic esters with alternative products.
In reducing the use of environmentally hazardous substances, as in other areas of our activity, Murata is working with the security of society, the community, and our customers as our first priority.

Management of Environmentally Polluting Substances

At Murata, we record data on the chemical substances we use in our domestic plants in a database, and we use a system that allows us to easily understand and manage the status of use of individual chemical substances.

We use this system for the discharge and transportation calculations required by the Act on Confirmation, etc. of Release Amounts of Specific Chemical Substances in the Environment and Promotion of Improvements to the Management Thereof (PRTR Law).

Of the 462 classes of substances that are subject to reporting under the terms of this law, in its domestic Group operations between April 1, 2017 and March 31, 2018, Murata used one ton or more of 27 classes of substance including toluene, xylene, and lead and lead compounds. The amounts used are shown below.

Volume of use and volume of discharge/transportation of PRTR substances (Total for Japan)

Fiscal 2017

Fiscal 2016

Fiscal 2015

Control of Emissions of Air Polluting Substances

Murata is voluntarily working to control its emissions of volatile organic compounds (VOC), which are a contributor to atmospheric pollution. We are introducing exhaust gas treatment equipment (regenerative thermal oxidizers [RTO]) at worksites that use a high volume of VOCs. Last year, we installed the equipment at Izumo Murata Manufacturing Co., Ltd. and Wuxi Murata Electronics Co., Ltd. Our use of VOCs has increased as our production has expanded, but through our voluntary efforts we have been able to eliminate 96% of our usage.

Trends in volume of VOC use and rate of discharge into the atmosphere (Domestic)

Soil and Groundwater Contamination Surveys and Decontamination

Implementation of Surveys of Contamination and Decontamination Measures at Business Sites

Murata has been quick to carry out surveys on soil and groundwater contamination caused by past business activities and has actively worked toward early remediation.

Depending on the properties of the soil, the concentration of contamination, and the position of the contamination source, we apply the on-site bio method, the on-site iron powder method, or the on-site oxidation and decomposition method, or other state-of-the-art technologies to enable decontamination of the area. In addition, we install wells at the boundaries of the facilities in question to enable us to monitor the status of decontamination of the groundwater.