Bridgestone is working to reduce GHG emissions across the value chain to achieve Milestone 2030, the long-term vision it set out in 2019. Scope 3 emissions account for the largest proportion of GHG emissions in the Group’s value chain:
Of the 89,640 thousand t-CO2 total emissions in 2025, Scope 1 and 2 emissions accounted for 2% of the total. Scope 3 upstream emissions*1 accounted for roughly 11% and Scope 3 downstream emissions*2 accounted for roughly 87%. Within Scope 3 downstream emissions, indirect emissions are calculated for the use phase (Category 11), which is the impact of tire rolling resistance on fuel efficiency when a vehicle equipped with Bridgestone tires is moving. While calculation of these emissions is optional under the GHG Protocol, they account for about 87% of total Scope 3 emissions for Bridgestone.
To achieve carbon neutrality, it is vital to address Scope 3 as well as Scope 1 and 2 emissions. Currently, however, many Scope 3 categories are calculated based on statistical values or assumptions set by industry groups. As a result, there is a high degree of uncertainty regarding the calculation results, and the scope for contributing directly to emissions reduction is limited. Furthermore, there are many categories in which emissions increase automatically as a business grows in scale.
Bridgestone seeks to balance business growth with the reduction of overall emissions and contribute to lower CO2 emissions for customers. To this end, and taking into consideration the scale of upstream and downstream Scope 3 emissions as well as the degree to which it can influence these, Bridgestone is channeling its efforts into reducing emissions at the raw materials procurement phase (Category 1) and use phase (Category 11), which account for a large proportion of its Product Carbon Footprints. Collaboration with customers and business partners is particularly important in these categories, and Bridgestone sees such collaboration as an opportunity not only to reduce GHG emissions but also to grow together. By strategically pursuing activities to reduce Scope 3 emissions, Bridgestone aims to achieve sustainable growth for both society and the Group.
Although the overall amount of Scope 3 emissions depends in part on sales and production volumes, it is estimated at 87,766 thousand t-CO2 in 2025, a reduction of about 29% compared to 2019. Of this total, the rate of reduction was 26% at the raw materials procurement phase and 29% at the use phase.
- Of the 15 Scope 3 categories of the GHG Protocol, Category 1 (purchased goods and services), Category 2 (capital goods), Category 3 (fuel- and energy-related activities not included in Scope 1 and 2), Category 4 (upstream transportation and distribution), Category 5 (waste generated in operations), Category 6 (business travel), and Category 7 (employee commuting)
- Of the 15 Scope 3 categories of the GHG Protocol, Category 9 (downstream transportation and distribution), Category 10 (processing of sold products), Category 11 (use of sold products), Category 12 (end-of-life treatment of sold products), Category 14 (franchises), and Category 15 (investments)
Reducing upstream emissions in the value chain
Of the Scope 3 upstream emissions in Bridgestone’s product value chain, GHG emissions from raw materials procurement (Category 1), resulting from the consumption of energy during the production of synthetic rubber, carbon black, and other raw materials, account for the majority, at over 80%.
In addition, given mounting interest in product disclosure and in Product Carbon Footprints, which is becoming more widespread in Europe, as well as growing customer demands for low-carbon products, Bridgestone believes that reducing carbon emissions at the raw materials procurement phase (Category 1) will give rise to opportunities to deliver added value through the promotion of products with lower carbon volumes.
Meanwhile, given the fact that the impact of upstream emissions from Scope 3 categories in the value chain other than raw materials procurement is relatively small, and that it is difficult for Bridgestone to directly contribute to reductions in these areas, Bridgestone is targeting reductions at the raw material procurement phase upstream in the value chain, and will steadily reduce Scope 3 emissions.
Efforts to reduce emissions at the raw materials procurement phase
Bridgestone is working to reduce weight and extend product lives in its tire product design, while also pursuing the development and adoption of raw materials derived from recycled and renewable resources. This enables a lower amount of raw materials to be used per product, leading to lower Scope 3 emissions and smaller Product Carbon Footprints at the raw materials phase.
Bridgestone is also strengthening collaboration with suppliers to reduce GHG emissions at the raw material production phase. One specific goal is for suppliers, who account for 92% of emissions, to set CO2 reduction targets equivalent to the Science Based Targets by 2026, and Bridgestone is working with its suppliers to achieve this goal.
Reducing downstream emissions in the value chain
Bridgestone views the downstream value chain, including the distribution and use of sold products and their collection and recycling (Scope 3), as areas where it can contribute to reducing GHG emissions from its partners and customers in the value chain.
Downstream emissions account for approximately 87% of GHG emissions throughout the lifecycle of a tire.*1 About 97% of these emissions are generated during the product use phase (Scope 3, Category 11), followed by the End-of-Life treatment of sold products (about 2%) and downstream transportation (0.4%). Given that the product use phase accounts for a large proportion of the Product Carbon Footprint, Bridgestone is focusing its efforts on this area.
Efforts to reduce emissions during product use
Emissions during the product use phase are estimated based on the contribution of tire rolling resistance to emissions from the vehicle on which a tire is installed. Among the various types of resistance for passenger cars, such as acceleration resistance and air resistance, while resistance varies depending on driving conditions, it contributes to around 7%-25% of emissions.
Although emissions range depending on a vehicle’s fuel efficiency and the customer’s driving conditions, improving rolling resistance, one aspect of tire performance, can improve fuel efficiency during vehicle use and contribute to lower GHG emissions. To make a greater contribution to reductions during the product use phase, Bridgestone set a goal of increasing the Group’s own contribution to CO2 reduction through its products and services in Milestone 2030 . The company is working to increase its contribution to GHG reductions among customers by pursuing the development of technologies to help lower rolling resistance, reducing the rolling resistance of its tires, and expanding sales of fuel-efficient tires, among other actions.
Contributing to CO2 reductions across the value chain
- Source: “Tyre LC CO2 Calculation Guidelines Ver. 3.0.1” PDF (December 2021, Japan Automobile Tyre Manufacturers Association)
Initiatives to reduce emissions across the value chain
Including the above efforts targeting the upstream and downstream areas of the value chain, Bridgestone’s various initiatives aimed at achieving its long-term environmental vision of carbon neutrality are giving rise to technological advancements across the value chain, significantly lower environmental impact, and GHG reductions for customers.