Efficient Use of Resources and Pollution Control
The Group is advancing initiatives designed to realize a circular economy with a low environmental impact by creating higher economic value through the reduced use of water and other resources while promoting the reduce, reuse, recycle (“3R”) approach.
Reducing Total Weight of Waste Discharged
The Tsubaki Group has set not only the reduction of waste (both industrial and general waste) and the improvement of the recycling rate, but also the total weight of waste discharged, which includes recyclables traded for sale, as the management indicator in accordance with Four Principles and Eight Items of Sustainability. We are striving to fundamentally reduce the volume of materials extracted from the earth’s crust in the natural world, which is one of the management indicators of the Tsubaki Group's EcoFactory Certification System.
List of Total Weights of Waste Discharged, Broken Down by Facility
|FY 2019||FY 2020|
|All Waste||Sale of Valuable Resources||Total Waste Discharged||All Waste||Sale of Valuable Resources||Total Waste Discharged|
|Tsubakimoto Chain||Kyotanabe Plant||582||8,390||8,971||456||7,412||7,867|
|Domestic subsidiaries||Tsubakimoto Custom Chain||181||850||1,031||150||719||869|
|Tsubakimoto Bulk Systems||27||185||213||23||215||237|
|Tsubakimoto Iron Casting||1,788||36||1,825||1,446||28||1,474|
|Tsubaki Yamakyu Chain||52||70||123||57||85||142|
Note: All waste = Industrial waste + General waste
List of Figures
|Total waste discharged/Unit|
|FY 2019||FY 2020|
|Tsubakimoto Chain||Kyotanabe Plant||0.480||0.472|
|Domestic subsidiaries||Tsubakimoto Custom Chain||0.214||0.195|
|Tsubakimoto Bulk Systems||0.065||0.064|
|Tsubakimoto Iron Casting||1.325||1.283|
|Tsubaki Yamakyu Chain||0.043||0.058|
Note: Total waste ÷ Production
Improvement of Recycling Rate
The Tsubaki Group takes a proactive approach to reducing and recycling waste. In FY 2020, the combined total amount of industrial and general waste emissions was 4,645 tons, representing a decrease of 22.8% year-on-year.
The recycling rate remained high at an annual average of 96.7%.
Waste Emission and Recycling Rate (Fiscal Year Average)
Unit: t, %
2016 2017 2018 2019 2020 Industrial waste 6,090 6,462 6,452 5,573 4,300 General waste 517 470 440 445 345 Recycling rate
98.7 98.7 97.9 97.6 96.7
Waste Emission and Recycling Rate
The scope of the report is 11 major manufacturing sites in Japan; overseas data is not included, as the definitions of disposal operations differ from country to country.
Coexistence with Nature
Modern society is maintained by receiving a variety of ecosystem “services” from nature, including circulation and regeneration of materials in the atmosphere, water, and soil. The Tsubaki Group contributes to the protection of the ecosystem by reducing our environmental impact through our manufacturing and products that are in harmony with the global environment. We are also reducing the use of hazardous chemical substances in our production activities to reduce the risk that such substances pose to the natural environment. Furthermore, we are striving to improve the environment and conserve the ecosystem by directly cooperating with the environmental conservation activities taking place all around us in our day-to-day business.
Initiatives to Reduce the Use of Hazardous Chemical Substance
Based on domestic and international legislation concerning hazardous chemical substances, the Tsubaki Group is investigating substances contained in raw materials, parts, and other materials. By also working together with our customers to gain an understanding of the actual details regarding the usage of hazardous chemical substances and to establish permissible levels, we are continually striving to reduce the use of such substances.
In our Green Procurement Guidelines, we require our suppliers to reduce the use of hazardous chemical substances by specifying the applicable laws and regulations, names of substances, standard values, etc.
|Laws and Regulations||Compliant Products|
|General-purpose drive chains, lube-free drive chains, powerful drive chains, corrosion resistant drive chains, cable carrier plastic series, cable carrier steel series, Cleanveyors, Flatveyors, locking devices, and shaft couplings (except roller chain couplings)|
|Gear motors, gear boxes, power cylinders, jacks, electric overload protectors, control equipment, machine protective equipment, clutches, shaft couplings (roller chain couplings)|
|ELV directive||All components for automotive engine timing chain systems|
* RoHS directive: An EU directive regulating the use of certain hazardous substances in electrical and electronic equipment.
2002/95/EC (RoHS 1) was promulgated in February 2003 and 2011/65/EU (RoHS 2) was promulgated in July 2011.
* ELV directive: An EU directive restricting the use of lead, mercury, cadmium, and hexavalent chromium as a general rule to reduce waste from end-of-life vehicles (ELVs) and encourage appropriate disposal.
Promoting the Reduction of the Use of Chemical Substances Subject to the PRTR Law
The Tsubaki Group surveys emissions of chemical substances specified by the Chemical Substance Removal Management Promotion Law (PRTR Law) and continuously works to reduce such substances and switch to less hazardous substances.
In FY 2020, the Group’s annual PRTR report discovered such substances in seven plants at four companies. The Tsubaki Group has set PRTR control as a management indicator for the EcoFactory Certification System, and is working to reduce the use of strictly controlled substances at plants that are not subject to reporting under this system.
FY 2020 data on chemical substances subject to the PRTR Law
|Location||Substance No.||Substance Name||Amount Released||Amount Transferred||Total|
|Atmosphere||Public Water Supply||Soil||On-site Landfill||Sewer||Transferred to Off-site Business|
|Tsubakimoto Chain||Kyotanabe Plant||348||1-bromopropane||8,700||0||0||0||0||0||8,700|
|Saitama Plant||87||Chromium and chromium (III) compounds||50||0||0||0||0||25,170||25,220|
|Tsubakimoto Bulk Systems||53||Ethylbenzene||4,760||0||0||0||0||240||5,000|
|Tsubakimoto Iron Casting||412||Manganese and its compounds||2,734||0||0||0||0||0||2,734|
|Magnesium and its compounds||1,679||0||0||0||0||0||1,679|
* Tsubakimoto Custom Chain, Tsubakimoto Sprocket, and Tsubaki Yamakyu Chain are outside the scope of PRTR filing.
Note 1: The table above shows the figures compliant to laws and regulations.
Conservation of Water Resources
To protect water resources, the Tsubaki Group is working to reduce total water consumption and water consumption per unit of production on a global level. At our Japanese sites, we have set a management value for each site as a management indicator for the EcoFactory Certification System, and are working to reduce water consumption. In addition, we have begun measuring water consumption at our overseas sites since FY 2017, and we have been taking measures to reduce it.
Water consumption (domestic)
Water consumption (global)