Research on how the characteristics of the audit committee chairman mediate the impact of corporate governance reform on ESG disclosure: An emerging market perspective

From Governance Structure to Sustainable Disclosure: The Moderating Role of Audit Committee Leadership in ESG Transformation

Against the backdrop of increasing demands from the global capital markets for corporate sustainability, Environmental, Social, and Governance (ESG) disclosure has risen from a peripheral issue of corporate social responsibility to a core indicator of a company's long-term value and operational robustness. Investor, regulatory body, and public expectations for the transparency of ESG information are reshaping the logic of corporate disclosure with unprecedented force. Therefore, ensuring the accuracy and credibility of this non-financial information has become a governance challenge that companies urgently need to address at the strategic level.

The Audit Committee, as a key oversight layer in the corporate governance system, has been well-demonstrated in ensuring the reliability of financial reporting. However, as ESG disclosure becomes more complex, the Audit Committee is not only tasked with supervising financial fraud but also with ensuring the accuracy and completeness of non-financial information—that is, ESG performance. The characteristics of the Audit Committee Chair, such as their independence, expertise, and experience, directly determine the committee's ability to effectively monitor management's conduct.

This study will analyze how these key characteristics of the Audit Committee Chair affect the quality of ESG disclosure within the context of specific emerging markets (such as Saudi Arabia). The research finds that independent and knowledgeable Audit Committee Chairs have a significant positive impact on ESG disclosure, which stems not only from their objectivity reducing the risk of management interference but also from their expertise enabling them to effectively interpret complex ESG metrics.

Governance Reform as a Key Moderating Variable extHowever, the depth of the research lies in introducing the moderating role of the external variable "corporate governance reform."}$ In emerging markets, the maturity of the corporate governance framework is a decisive factor in influencing the operational efficiency of the Audit Committee. For example, the corporate governance reforms promoted in Saudi Arabia under the "Vision 2030" initiative have injected new standards of transparency and regulatory expectations into the market. The study indicates that these institutional reforms play an important "mediating" role: they greatly enhance the positive impact of independent, experienced Audit Committee Chairs on the quality of ESG disclosure, while effectively mitigating the negative interference that conflicts of interest (such as multiple directorships) in the board might cause.

From a theoretical perspective, this phenomenon can be explained as: Institutional support enhances the effectiveness of governance mechanisms. When the regulatory environment shifts from ambiguous to clear, corporate governance reforms provide the Audit Committee with a more solid institutional foundation and higher external accountability pressure. This external pressure maximizes the leverage of the Chair's expertise and independence into an effective driving force for ESG disclosure.

Signals for Reconstructing Long-Term CompetitivenessSignals for Reconstructing Long-Term Competitiveness

This virtuous cycle of governance and disclosure is a clear signal for a company's long-term competitiveness reconstruction. High-quality ESG disclosure is not only a reflection of compliance but also demonstrates the company's risk management capabilities, social responsibility commitments, and alignment with Sustainable Development Goals (SDGs) to the global capital market. For emerging markets, by enhancing the transparency of ESG disclosure, companies can not only effectively mitigate transition risks but also attract the attention of international capital, reduce financing costs, and build deeper stakeholder trust, ultimately achieving a strategic leap from short-term operational focus to long-term, sustainable value creation.

In summary, the leadership of the audit committee is the intrinsic driver of the quality of ESG disclosure, and corporate governance reform acts as the external catalyst that amplifies this driving force. If companies can systematically improve their performance in the field of sustainable development by strengthening their governance structure and optimizing key leadership arrangements, they can build business models with greater resilience and long-term survival capabilities in an increasingly complex global competitive landscape.