Environmental disclosure in emerging markets remains poorly understood, despite its critical role in sustainability governance. Here, we analyze 42,129 firm-year environmental disclosures from 4,571 Chinese listed firms (2008-2022) using machine learning techniques to characterize disclosure patterns and regulatory responses. We show that increased disclosure volume primarily comprises boilerplate content rather than material information. Cross-sectional analyses reveal systematic variations across industries, with manufacturing and high-pollution sectors exhibiting more comprehensive disclosures than consumer and technology sectors. Notably, regional rankings in environmental disclosure volume do not align with local economic development levels. Through examination of staggered regulatory implementation, we demonstrate that market-based mechanisms generate more substantive disclosures compared to command-and-control approaches. These results provide empirical evidence that firms strategically manage environmental disclosures in response to institutional pressures. Our findings have important implications for regulatory design in emerging markets and advance understanding of voluntary disclosure mechanisms in sustainability governance.

This study investigates the relationship between directors’ foreign experience and corporate environmental disclosure in Chinese listed firms from 2009 to 2017. The research shows that directors with foreign experience have a positive and significant impact on corporate environmental disclosure. This effect is more pronounced in nonstate-owned enterprises, where directors have greater influence over managerial decisions. Additionally, the study suggests that in industries with high energy consumption, high pollution, or overcapacity, the positive effect can be further enhanced by having at least three directors with foreign experience or foreign experience members in the audit committee. The impact of experiential diversity on environmental disclosure is greater than that of board gender and independence diversity. The findings suggest that policymakers and firms prioritize the recruitment of directors with diverse experiences to improve their environmental disclosure practices.