2023: 60th Anniversary of Bridgestone Motorsport“Challenge for Excellence” Next Stage

Technology development
for “ultimate customization”
through sustainable global
motorsports activities
December 15, 2023

Bridgestone Corporation
Vice President and Senior Officer, Product Development

Akio Kusano

Motorsports is Bridgestone’s origin
Tires carry life

Mobile laboratory

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Extreme conditions

Thorough testing“Developing Talent”“Refining Technology”

Support the development of motorsports culture

Mastering

Challenge for excellenceMotorsports is Bridgestone’s origin
Customization forteams and drivers

Respect for being on-site

Real × Digital
Bridgestone DNAFocus on quality

Respect forbeing on-site

Being attentive and supportiveof customer problems

Challenge

Refine Bridgestone DNA combining real and digital through the “challenge for excellence”
3/11

Bridgestone’s core technology developed through motorsports
Develop polymer design on a molecule level to performance verification of tires all at once
Nano

Molecule

RubberTire

Car

10-10m~~1m
Polymer design

4/11

Macro

Compound design

Performance demonstrationin racingBridgestone’s core technology developed through motorsports
Develop polymer design on a molecule level to performance verification of tires all at onceNano

Molecule

RubberTire

Car

10-10m~~1m
Polymer design

Mastering rubber

5/11

Macro

Compound design

Performance demonstrationin racingTransfer technology refined throughmotorsports to replacement tires
Ex. BLIZZAK VRX3REGNO GR-XⅢ
TURANZA EV

Bridgestone’s core technology development ー Next stage ー
From Circuit to Street

EV
High loading / High Torque

Realize customer delight in the evolving mobility
Tire for EVs
Driving
performance
Environmental
performance

Motorsports
High speed / High severity

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Performance
under extremeconditions••

High wear resistance (respond to high torque）
Extremely low RRC(contribute to electricity consumption efficiency)

Strong and robust（withstand high severity on tires)•High grip（transmit high engine power）•••

Improve resource productivity
Enhance material circularity••

Respond to all weather conditions (wet & dry)Stability under diverse input conditions(perform over a wide temperature range)

Empower each and all to achieve their best
Be essential to the future of mobility

”Mobile laboratory”
Evolve technology throughthe “Challenge for excellence”

Mastering rubber
Mastering road contact

Elevate all conventional performance andfurther customize desired tire performanceby customer and vehicle type

Lead to drive sustainability“Ultimate customization”“thinner, rounder, lighter ”

Co-creation / Real ×digital / Global

7/11

Mastering rubber

Evolution of technology to “see” rubber : Dan-Totsu analysis technology
The structure of rubber and molecule can beobserved more clearly

The state of motion will also be
more clearly visible

StaticNano level observation using
next-generation synchrotron radiation facility(NanoTerasu)

Micro levelcompounddesignFurther evolution through co-creation

Evolution of technology to “analyze”:
Data-driven material development
Nano level

polymer design

Extensive knowledge
from the past

In-motion

Bridgestone / BIP

Formed R&D team to enable
innovative material development

Unique material synthesis
evaluation system

Bridgestone’s database

Real- Next stage -＊Tohoku Univ. /NanoTerasu

Create new value
based on deep understanding
the nature of rubber

Enhance wear resistance andgrip performance
Reduce rolling resistance Indoor evaluation data
 Environmental indicators
 Material data Market data

Develop fundamental technology
to “see”, “analyze”
and “manage” rubber”Mastering rubber”
through motorsports

AI data analysis

Unique simulation

State-of-the-art material informatics

DigitalEvolve technology to “see” and ”analyze” rubber based on technologies developed through motorsports tires development
Drive agile development and co-creation through “real x digital”: Elevate “mastering rubber” to the next stage＊ Courtesy of Japan Photonics Innovation Center8/11

Mastering road contact

ULTIMAT EYE - Evolution of technology to “see” road contact
Reproduce road surface conditions with high accuracy
Rough road surface (circuit)

Fine road surface (urban area)”Mastering road contact”
through motorsports
Visualize contact condition
on any type of road surface

Real

Evolution of simulation technology
Accurately predict tire performance
under any road surface and road contact condition

DigitalTread model

Develop fundamental technology
to “see” road contact condition

Visualize
tire deformation condition- Next stage -Create new value
based on deep understanding
the nature of road contact

Enhance wear resistanceand grip performance

Road
Roadsurface
Surface
model
model

Analyze various contact conditions between road and tires through “real × digital” and make hypothesis, prototype and verify
Refine technologies faster through the development of motorsports tires used in extreme conditions and accelerate agile development
9/11

Lead to drive sustainability
Enhance and diversify recycled and renewable material
Strive to realize chemical recycle

Guayule(Diversification of natural rubber)

Natural rubber plantation
management

Rice husk silica(Reinforcement material for tires)

Tire recycle technology（Green Innovation Fund）＊

Reinforcement fiber
derived from recycling

Recycled carbon black／
Recycled rubber

Refine sustainable material technology with ourco-creation partners and establish the ecosystemfor our sustainability business model

Rubber biodegradable
technology (MoonShot)

Easy-to-reuse rubber

Demonstrate with motorsports tires
used in extreme conditions＊ These results were obtained as a result of work commissioned by the New Energy and Industrial Technology Development Organization (NEDO) (JPNP21021).

10/11

Expand to
replacement tires

”Mobile laboratory”
Evolve technology throughthe “Challenge for excellence”

Mastering rubber
Mastering road contact

Elevate all conventional performance andfurther customize desired tire performanceby customer and vehicle type

Lead to drive sustainability“Ultimate customization”“thinner, rounder, lighter ”

Co-creation / Real ×digital / Global

11/11

Statements made in this presentation with respect to Bridgestone's current plans, estimates, strategies and beliefs and other statements that are not historical facts areforward-looking statements about the future performance of Bridgestone. Forward-looking statements include, but are not limited to, those statements using words such as"believe," "expect," "plans," "strategy," "prospects," "forecast," "estimate," "project," "anticipate," "may" or "might" and words of similar meaning in connection with a
discussion of future operations, financial performance, events or conditions. From time to time, oral or written forward-looking statements may also be included in othermaterials released to the public. These statements are based on management's assumptions and beliefs in light of the information currently available to it. Bridgestone
cautions you that a number of important risks and uncertainties could cause actual results to differ materially from those discussed in the forward-looking statements, andtherefore you should not place undue reliance on them. You also should not rely on any obligation of Bridgestone to update or revise any forward-looking statements,
whether as a result of new information, future events or otherwise. Bridgestone disclaims any such obligation.

Copyright © Bridgestone Corporation

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