This study aims to analyze the impact of intellectual capital, good corporate governance mechanisms, environmental performance, and profitability on the firm value of companies in the basic materials sector listed on the Indonesia Stock Exchange during the 2022-2024 period. Firm value is measured using Tobin's Q, Intellectual capital using VAIC, good corporate governance using the proportion of independent commissioners, institutional ownership, and managerial ownership, environmental performance using the PROPER rating, and probability using ROA. The sampling method used in this study is purposive sampling with a sample size of 84 companies. The data used were secondary data obtained from annual reports, PROPER data, and financial statements. The data analysis method employed was multiple llinier regression. The results of the study indicate that Intellectual Capital, independet board members, institutional ownership, managerial ownership, and profitability do not affect firm value, wheres environmental performance has a positive and significant effect on firm value.
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