Category 

 Explanation 

Key concerns

Key Communication Topics、

Communication Methods and Frequency

Communication Performance
in 2025

 Customer 

Including major automotive manufacturers, distributors, and general customers

1.Economic
   Performance
2.Occupational
   Safety and Health
3.Market Position

1.Product Quality
   Management
2.Business Continuity
   Management
3.Product Development
   and Technological
   Advancement
4.Sustainable Supplier
   Management
5.Regulatory
   Compliance

1.The customer satisfaction
   survey was completed in
   2025.

 Shareholder 

Shareholders holding equity issued by Cheng Shin Rubber

1.Regulatory
   Compliance
2.Risk
   Management
3.Information
   Security
   Management
4.Product Quality
   Management
5.Business
   Continuity
   Managements

1.Annual
   Shareholders’

   Meeting and
   Institutional
   Investor
   Conference

2.Regular Updates on
   the Market
   Observation Post
   System (MOPS)
3.Dedicated
   Shareholder Section
   and Hotline on the
   Company Website

1.Two institutional investor
   conferences were held in 2025.
2.One shareholders’meeting
   was held in 2025
3.Information on the Market
   Observation Post System
   (MOPS)is updated
   promptly and in
   accordance with
   regulations

4.Investor information on the
   company website is updated
   periodically as needed

5.Shareholders occasionally
   submit inquiries via
   telephone and email, all of
   which have been duly
   responded to
6.An annual corporate
   governance evaluation is
   conducted, with the
   2025 results placing the
   company within the 21%–35%
   percentile range among listed
   companies

Employee

Refers to Cheng Shin employees

1.Regulatory

   Compliance
2.Occupational
   Health and
   Safety
3.Human Rights
   Protection and
   Diversity &
   Inclusion
4.Labor Relations
   and Employee
   Benefitsn

 1.Quarterly Labor-

   Management
   Meetings and
   Occupational Safety
   and Health
   Committee Meetings
2.Ad hoc Corporate
   Labor Union
   Meetings, Employee
   Welfare Committee
   Meetings, and
   Human Resources
   Committee Meetings
3.Periodic Internal
   Company
   Announcements

1.Quarterly labor-
   management meetings
   are held to report on
   workforce developments
   and to communicate and
   discuss employee
   activities and benefits.

2.Monthly on-site medical
   and nursing services are
   provided to review
   employees’ health
   examination results and
   offer health consultations.

Government agencie

 Competent authorities such as the Environmental Protection Administration (EPA),Occupational Safety and Health Administration(MOL)、 the Financial Supervisory Commission (FSC), and the Taiwan Stock Exchange (TWSE).

1.Business
   Continuity
   Management
2.Wastewater
   Discharge
   Management
3.Waste
   Management
4.Occupational
   Health and
   Safety
5.Labor Relations
   and Employee
   Benefits

1.Official documents
   are issued on an
   as-needed basis
2.Regulatory briefings
   or public hearings
   are conducted from
   time to time
   through
   communication
   with labor unions
   and competent
   authorities
3.Declarations are
   submitted via the
   online reporting
   systems of
   competent
   authorities in
   accordance with
   the prescribed
   reporting cycles
4.Inspections and site
   visits by competent
   authorities are
   conducted on an ad
   hoc basis

1.Participated in over 30
   promotional sessions
   organized by competent
   authorities related
   to environmental protection
   and occupational health

2.Engaged in regulatory
   briefings and public
   hearings held by relevant
   government agencies on an
   ad hoc basis
3.Information is disclosed on
   the Market Observation
   Post System (MOPS) in
   accordance with applicable
   regulations

Supplier

Supply of raw materials, equipment, and molds

1.Sustainable
   Supplier 
   Management
2.Product Quality
   Management

1.On-site audits or
   self-assessments of
   new and existing
   suppliers are
   conducted on an
   irregular basis
2.Collect and analyze
   supplier delivery
   performance. Major
   suppliers are
   required to report
   their production
   process capabilities
   on a quarterly
   basis. Suppliers
   who fail to meet
   performance
   standards for the
   month are notified
   via phone or email
   on an ad-hoc
   basis,and are
   required to return
   a signed Raw
   Material
   Abnormality
   Notification. Meetings
   are convened
   monthly when
   necessary to
   review and address
   performance issues 

A total of 40 suppliers conducted self-assessments in accordance with the annual audit plan, due to pandemic-related considerations. Among them, 19 suppliers were rated Grade A, 16 suppliers were rated Grade B+, 5 suppliers were rated Grade B. The qualification rate was 100%, and the achievement rate was 100%