Determinants of Environmental Disclosure in Thai Corporate Annual Reports

This study investigated the extent and content of environmental information disclosure provided in the annual reports of companies listed on the Stock Exchange of Thailand (SET), and tested whether there were any relationships between the amount of environmental disclosure and a number of company characteristics used in previous studies conducted in more developed countries. By using a simple sampling method, 75 listed companies were selected for inclusion in the study based on their 2007 annual reports. The findings indicate that 62 companies (83%) provided environmental information in their annual reports. Companies in the resources industry group made the most disclosure of environmental information, while the least disclosure was made by companies in the agricultural and food industries group. The most common location of environmental reporting in annual reports was under the topic of corporate governance. The most common themes of disclosures were environmental policy, environmental activities, and waste management. There was a positive relationship between the amount of environmental disclosures and size of company.