Reducing Environmental Impacts

Waste Reduction

The Toyo Tires Group is striving to achieve a 100% recycling rate by the end of fiscal 2020.

In FY 2016, we generated a total of 17,800 tons of waste, a 6% reduction from the previous year. The Great East Japan Earthquake in 2011 temporarily caused the amount of our landfill waste to increase. However, since FY 2015, it has been less than the amount before the disaster. In FY 2016, the total amount of landfill waste was 0.15 ton, a 95 % reduction from the previous year. We are making steady progress in this area. We are moving away from incinerating waste and switching to thermal recycling, and we replaced wooden pallets with more durable plastic pallets. These efforts helped us achieve a 99.4% recycling rate.

We are also taking actions to ensure that our waste disposal programs are properly executed. We completed an annual on-site inspection of vendors handling collection, hauling, and disposal of our industrial wastes. We also implemented a new system to ensure that Electronic Manifest System is property executed. In FY 2017, we continue to ensure that all of our plants with the waste-disposal requirements. We hired an environmental consultant as part of this effort.

Total amount of waste generated and landfill (in Japan)

Total amount of waste generated and landfill (in Japan)

Trend in waste recycling rates (in Japan)

Trend in waste recycling rates (in Japan)

Total amount of waste generated and landfill per unit of production (in/outside Japan)

Total amount of waste generated and landfill per unit of production (in/outside Japan)

Recycling of Used Tires

Under the leadership of the Japan Automobile Tyre Manufactures Association (JATMA), the tire industry as a whole is striving to promote the recycling of used tires.

Spreading Use of Retreading Tires (Reused Tires)

Retreading tires involves replacing the tread (the part of a tire that comes into contact with the road surface) on worn tires to make them serviceable again. Since retreading reuses all the remaining part of the tire, it naturally saves resources and even emits less CO2 than in manufacturing new tires. Applied and managed in combination with fuel-efficient tires, retreading can bring about even greater energy-saving results. Because of these environmental benefits that retreading provides, retreading tires are listed as a “preferred item” by a Law on Promoting Green Purchasing in Japan.

The age of the casing of retreading tires varies. We conducts strict inspections during all stages of retreading process, from selection of casings to final inspection, so that our customers can feel confident that all of our retreading tires are safe. For example, high voltage testing is used to check for damages. The internal structure is inspected for flaws that cannot be visually detected on the outside. A durability testing is conducted on final products.

By further spreading the use of retreading tires, the Toyo Tires Group intends to continue contributing to reducing environmental impact due to transportation.

  • * Retreading tires produce 41% less CO2 in comparison to new tires during production.(Source: Japan Retreader’s Association)

Retreading process

Remold Method

Pre-Cure Method

Remold Method (left) and Pre-Cure Method (Right)

There are two methods of retreading: In Remold method, new tread rubber is applied to tire casting. It is then placed in a mold and vulcanized to form tread. In Pre-cure method, previously prepared tread strip is applied to tire casing and vulcanized in a vulcanizer.