Background: This study investigates the impact of Good Corporate Governance (GCG), profitability, and carbon emission disclosure on firm value in the mining sector listed on the Indonesia Stock Exchange (IDX) from 2019 to 2022. The mining sector's significance in Indonesia's economy and the growing importance of sustainable corporate practices provide the context for this research. Methods: The study employs multiple regression analysis to analyze data from 11 mining companies. The variables include GCG mechanisms (managerial ownership, institutional ownership, independent commissioners, and audit committees), profitability (measured by Return on Assets), and carbon emission disclosure. Firm value is proxied by Tobin's Q. Results: The findings indicate that profitability has a positive and significant impact on firm value. However, GCG mechanisms such as independent commissioners and audit committees have negative effects on firm value. Carbon emission disclosure does not significantly influence firm value. Conclusion: The study highlights the importance of profitability in driving firm value but also underscores the need for effective GCG mechanisms and greater emphasis on environmental responsibility. The results contribute to the discourse on sustainable corporate practices and their implications for investor confidence, emphasizing the necessity of balanced approaches that integrate financial performance with environmental sustainability.
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