Engagement with Sustainable Society

Preservation of the Global Environment

The ROHM Group has been making various efforts through its business activities to realize a sustainable society, including the development of environmentally-conscious products and a reduction in water risk.

Efforts to Attain SDGs

Social Contribution Products


Eco-friendly products

With a goal of resolving social issues through innovative products, the ROHM Group has developed an environmental contribution evaluation sheet to numerically and objectively assess the extent to which new products contribute to the environment compared with previous modelsin the new product development stage, and is building a system for comparing environmental and CO₂ reduction performance. In particular, the introduction of a mechanism to improve the development ratio of eco-friendly products that can reduce CO₂ emissions during usage is being promoted in collaboration with the development department.

Social Contribution


ROHM Group is conducting various activities that are rooted in local communities in many parts of the world in which we operate.

  • ROHM Logistics
    Cleanup Campaign
  • ROHM Shiga
    Biwa lake Cleanup activity by citizen
  • ROHM Apollo Yukuhashi
    Cleanup activity in nagaihama beach
  • REDA
    Cleanup Activity at South Coastline, Kinsyu
  • RWEM
    Cleanup at the beach

Renewable Energy


The site in Shizuoka Prefecture introduced a solar power system in fiscal year 2017 and set up solar panels on the south side of the factory parallel to the Shinkansen Bullet Train tracks for a total length of 270 meters; this power system can generate approximately 363 MWh of electricity annually. The ROHM Group will consider the introduction of renewable energy to reduce emissions of global warming gases and avoid exhausting limited resources.

Solar panels

Water Risk Correspondence


The semi-conductor manufacturing process, which is one of the Rohm Group's business areas, consists of an upstream process (semi-conductor wafer process) and downstream processes (assembly and final product inspection). The upstream process is located in Japan, and the downstream processes are located in our Southeast Asia, South Korea, and China plants. The manufacture of semi-conductors is an industry that requires the use of large volumes of ultra-pure water. The vast majority of those resources are used in the upstream process. For this reason, securing a long-term, stable supply of water in Japan, where the upstream process is concentrated, is an essential prerequisite for the continuation of operations.
Further, in Southeast Asia, where most of the downstream processes are concentrated, the two plants in Thailand are located in catchments with a high risk of flood and other water damage. From the bitter past experience of having operations disrupted by actual damage from a flood disaster, we conduct risk management from the dual aspects of water shortages and flood risk.

Biodiversity Conservation


We have had a substantial impact on the environment through our business activities. We believe it is essential for us to try to conserve biodiversity in the utilization of resources used for production or emissions resulting from production, and thus we have been conducting cleanup and tree planting activities in each region to protect the ecosystem.

  • ROHM Wako
    Cleaning activity "Refresh Setouchi"
  • ROHM Hamamatsu
    Welcome Clean Project (coastal cleanup activities)
  • REPI
    Forestation activity
  • RIST
    Forestation activity

Considerations of Product Safety

product chemical substance management

The ROHM Group complies with all environmental laws and regulations in Japan and overseas along with customer requirements and conducts initiatives to procure materials that minimize environmental impact.
While regulations on product chemical substance management such as the EU RoHS Directive, EUREACH Regulations, and the China RoHS Directive are being further strengthened, we have established Green Procurement Standards and verified conformance to each regulation by accurately obtaining the chemical information contained in raw materials and parts.
Based on the cooperation of our business partners, we are promoting the creation of eco-friendly products, creating a management system that prevents prohibited substances from being received, used, or shipped, and supplying products that ensure worry-free use by our customers.
In addition, raw materials and parts delivered from suppliers as well as products to be shipped to customers are periodically checked for chemical substances using fluorescent X-ray analyzers installed at each production site and at ROHM's Quality Assurance Department.

Compliance with the RoHS directive

In 2004 ROHM completed the transition to lead-free to ensure compliance with the RoHS Directive (2002/95/EC) enacted in 2006 (excluding some custom products demanded by certain customers). ROHM products also comply with the revised RoHS Directive (2011/65/EU) promulgated in 2011 and the additional directive ((EU)2015/863) established in 2015 restricting the use of specific phthalate esters.
Please note that our products do not contain restricted substances exceeding the maximum permissible concentration except for those exempt from regular applications.

Restricted Substance Maximum Allowable Value
Lead 0.1wt%(1,000ppm)
Mercury 0.1wt%(1,000ppm)
Cadmium 0.01wt%(100ppm)
Hexavalent Chromium 0.1wt%(1,000ppm)
PBB (Polybrominated Biphenyl) 0.1wt%(1,000ppm)
PBDE (Polybromodiphenyl Ether) 0.1wt%(1,000ppm)
DEHP (Di-2-Ethylhexyl Phthalate) 0.1wt%(1,000ppm)
BBP (Butyl Benzyl Phthalate) 0.1wt%(1,000ppm)
DBP (Di-N-Butyl Phthalate) 0.1wt%(1,000ppm)
DIBP (Diisobutyl Phthalate) 0.1wt%(1,000ppm)

Green Procurement

Feedback from Customers

Certificates of Conformance
Certificates of Appreciation and Commendation

Highlights of Environmental Impact

The ROHM Group extracts the inputs of resources and energy for business activities, including procurement of raw materials, manufacturing, and transportation of products, as well as outputs of greenhouse gases, industrial wastes, and other related elements, and then analyzes the environmental burdens, leading to emission reduction activities.