The study looked at how the quality of sustainability reporting affects how investors value a company's sustainability performance. They analyzed data from 247 firms in the top 30 green capital markets from 2012 to 2016. The results showed that investors care about a company's sustainability performance in social, economic, and corporate governance areas, but not so much in the environmental aspect. They also found that the quality of sustainability reporting is important for how investors view a company's corporate governance performance. This information is helpful for businesses, regulators, and others interested in understanding how sustainability reporting quality impacts the value of a company's sustainability efforts.