Environmental Management DataSustainability

Environmental management data (non-consolidated data for former MES)

Energy consumption and CO2 emissions

The graph shows the actual transition of environmental indicators at our company. Due to the stagnation of economic activity caused by the COVID-19 , the amount of construction work for diesel engines decreased, and the amount of shipbuilding built toward the closure of the Chiba Factory was reduced. It decreased by 17%. In addition, by changing the contract to a power menu with lower CO2 emissions, we have achieved a significant reduction in CO2 emissions by approximately 33% compared to the previous year.


Water consumption

The graph shows the use of water by MES over the last five years. MES uses both service water (clean water) and industrial water (intermediate water). We strived to save water, as a result the amount of service and industrial water used decreased approximately by 5% from the previous year.


*1 TJ: Tera Joule (=1012J) *2 CO2 emissions were calculated by following the Guidelines for Calculating Corporate Greenhouse Gases Emissions issued by the Ministry of the Environment. CO2 emissions from electric power were calculated by using the adjusted CO2 emission coefficient for designated electric enterprises that was also published by the Ministry of the Environment.

Waste disposal and recycle rate

The unlawful dumping of industrial waste has become a major social problem. As a producer of industrial waste, MES makes every effort to fulfill its responsibilities in this area. One of these efforts is our strict management of manifest. This is accomplished through periodic on-site inspections of disposal companies. Even more important is our effort to reduce the amount of waste itself. To achieve this objective, we work hard to recycle and thoroughly classify our waste. The graphs show the waste amount and recycle rates over the past five years, and a breakdown of waste for 2021/3. We worked to limit waste, as a result we saw an approximately 12.5% decrease in waste from the previous year. On the other hand, the recycle rate decreased by approximately 8.9% to 77.7% due to the lack of progress in recycling other wastes. We will continue our efforts to reduce waste and improve our recycle rate. In addition, we will continue to properly dispose of our waste through strict management.


Environmental accounting (non-consolidated data for former MES)

MES spent a total of ¥1,030 million on investments and costs related to environmental preservation efforts. A detailed break-down of these expenditures is shown on the bottom. The categories for environmental preservation costs are based on the Environmental Conservation Cost Categories shown in the Environmental Accounting Guidelines 2005. These expenditures included a total of ¥190 million spent on investment, consisting of ¥150 million spent on research and development, ¥6.8 million spent on energy conservation of global environment conservation, and ¥31.1 million spent on pollution prevention cost such as exhaust gas measures. Total non-investment costs came to ¥840 million, which included ¥530 million spent on the research and development of environmentally friendly energy-saving products, ¥76.6 million for conservation cost such as energy saving, ¥87.9 million for resource recycling, and ¥110 million as the cost for pollution prevention costs such as exhaust gas and wastewater-treatment.