SUSTAINABILITY DISCLOSURE OF NON-FINANCIAL LISTED FIRMS IN NIGERIA: ARE THERE DIFFERENCES IN THE LEVEL OF DISCLOSURE AMONG INDUSTRY SECTORS?

Sustainability disclosure in many jurisdictions is still voluntary while it is mandatory in other climes. In Nigeria, the Nigeria Exchange Group (NGX) requires listed firms to include sustainability report in their annual reports from 2019. This study investigated whether there are differences in the level of sustainability reporting among the seven sectors of the non-financial listed firms on NGX. Population for the study was all the 97 non-financial listed firms on NGX while a sample of 30 firms were purposively and proportionately selected, based on largest capitalisation, from the seven sectors of the non-financial firms on NGX. Contents analysis was used to determine the level of quantity and quality disclosures while ANOVA was used as a method of analysis to determine if there were variations in the level of reporting by the seven sectors. Results showed that there were variations in the level of sustainability quantity and quality disclosures at 1% level of significance, with P-values of 0.00001 and 0.00006 respectively. It was therefore recommended that governments at both the federal and state levels should continuously enforce environmental and, health and safety laws with appropriate sanctions for any breach. Key Words: Stakeholders, Sustainability disclosure, Sustainability reporting quantity and Sustainability reporting quality.