Abstract:
Purpose: The aim of this study is to examine what information is voluntarily disclosed 
in sustainability reporting and to what extent corporate governance characteristics 
influence the sustainability reporting disclosure of companies listed in Sri Lanka. 
Design/methodology/approach: This study made use of a mixed research 
methodology. The first stage of this study examined the corporate governance practice 
and sustainability reporting disclosures of listed companies using qualitative content 
analysis. The next stage quantified both the scores of corporate governance practice 
and sustainability reporting disclosures. A measuring instrument comprising 26 
checklists was used to measure the disclosures. 
Findings: The study found that most companies voluntarily disclose information 
regarding sustainability, and corporate governance practice, impacts sustainability 
reporting disclosure in companies listed on the Colombo Stock Exchange in Sri Lanka. 
Practical implications: This study will benefit policymakers, organizations, and those 
interested in improving disclosures, not only in sustainability reporting but also in 
generating reports to inform stakeholders 
Originality value: Research on corporate governance practices and sustainability 
reporting disclosure in Sri Lanka is highly original and has the potential to make 
significant contributions to both academic literature and practical policy. The research 
could influence both corporate strategies and regulatory approaches, enhancing 
transparency and contributing to long-term sustainable economic development in Sri 
Lanka.