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concerned about, decide priorities and analyze sustainability issues, related strategies, objectives and

measures, with reference to the following related initiatives：
ĵ ĵGlobal Reporting Initiative's G4 Sustainability Reporting Guidelines
ĵ ĵUnited Nation Sustainable Development Goals (SDGs)
ĵ ĵEarth Charter and OECD Guidelines for Multinational Enterprises
ĵ ĵAccountability's AA1000 Series of Standards (2008 version)
ĵ ĵInternational Standard on Assurance Engagements 3000
ĵ ĵUnited Nations Global Compact
ĵ ĵISO 26000 Social Responsibility Guidance Standards
ĵ ĵTWSE Corporation Rules Governing the Preparation and Filing of CSR Reports by TWSE
Listed Companies.

Editing

The editing of this report was planned, edited and revised by the TGI CSR group which was
also responsible for the overall planning, communication, integration, information compilation and
editorial revisions. The CSR group was composed of executive team members as well as those from
the company and relevant sectors in the factories.

Audit of Report

A draft of the report was submitted to the CSR group and individual team members proofread
and revised their particular areas of data and content. After finalization an impartial third party verified
the final content. It was then sent to the Chairman for final review prior to publication.

Verification

The Ernst & Young accounting firm, an independent and credible accounting firm, was
commissioned to conduct limited assurance in accordance with the provisions of the Joint Standards
Publication on verification of non-historical financial information or review on TGI’s 2016 CSR Report,
which was compiled according to the Global Reporting Initiatives G4 Sustainability Reporting
Guidelines. Once the assurance was done, we have communicated with the governance units over
the result. For the scope and detailed conclusions of the independent assurance, please see the
independent assurance report in the appendix of this report.

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