Topcon’s Environmental Footprint Report

1. Mitigating Global Warming (CO2 Emissions Reduction)

Considering global warming as a top environmental priority, we sought to reduce our emissions to 4,710.0 t-CO2, which is equivalent to a 25% reduction in emissions below the benchmark (three-year average for FY2005 to FY2007) stipulated by an ordinance of the Tokyo Metropolitan Government. In FY2021, we reduced our emissions by 63.4%, to 2,300.7 t-CO2. We are also working to reduce our CO2 emissions at over- seas business bases, in accordance with this approach.

2. Effective Use of Resources (Total Emissions Reduction)

We strive to reduce our total emissions based on a zero-emission initiative, in order to make effective use of the Earth’s limited resources. In FY2021, we achieved the target with the total emissions of 198.1 tons, which is less than the target of 230.0 tons.

3. Management of Chemical Substances (VOC Reduction)

We are working to reduce volatile organic compounds (VOC) as part of the management of chemical substances. In FY2021, whereas our total emissions target was 2,805 kg, which represents an 85% reduction below our FY2000 level, we were able to reduce VOC usage to 1,967 kg (89.5% reduction).
In addition, we also switched from solvent paint to water paint to effectively reduce VOCs. The wear durability of conventional water-based paints tends to be lower than those of solvent paints. However, the developed water-based paints have wear durability equal to or better than those of solvent paints and are compatible with both environmental conservation and product durability.

CO2 emissions
Total emissions
VOC emissions

4. Water Drainage

Topcon Group uses a large amount of water in the lens manufacturing process, one of our core technologies, and the metal processing process. Since water generated in each manufacturing process contains organic and inorganic substances, we strictly control and properly treat wastewater to keep it below the standard values for hazardous substances specified in the Water Pollution Control Law before discharging it to not adversely affect the ecosystem and people’s lives. We will continue to monitor water risks at each of our business sites and strive to ensure the appropriate use of water resources by promoting water conservation and reducing water consumption.

Water discharge data (Headquarter and domestic group companies)

    FY2018 FY2019 FY2020 FY2021
Head quarter Surface water 25,917 23,261 23,521 18,867
Sewage system 0 0 0 0
Topcon Yamagata Surface water 5,677 5,441 3,604 4,452
Sewage system 73 109 261 0
Topcon Optonexus Surface water 2,611 2,892 7,740 20,341
Sewage system 41,228 33,303 33,140 0
Total Surface water 34,205 31,594 34,865 43,660
Sewage system 41,301 33,412 33,401 0
Grand Total   75,506 65,006 68,266 43,660
Unit : Cubic Meter

5. Water Risk

We investigated water risk for all manufacturing sites (Total 13) of Topcon Group using Aqueduct*. One site operates in an area with high risk (Aqueduct Overall Water Risk: High). However, we do not use any water in the manufacturing process at the site. There is no site in an extremely high-risk area (Aqueduct Overall Water Risk: Extremely High).
Aqueduct: An online tool developed by WRI (World Resources Institute) to evaluate water risk

6. Legal compliance and reports on complaints in FY2021

In 2021, there were no violations of environment-related laws and no customer complaints, and no incidents.

JapanOverseasGroup total
Number of legal violations000
Number of complaints000
Number of incidents000