The type
of research used in this research is associative research with a causal
quantitative approach. The population used in this study was taken from the
annual reports of coal mining and metal mineral sub-sector companies that have
been listed on the Indonesia Stock Exchange in the 2018-2022 period as many as
32 companies. Based on the purposive sampling method, the samples used in this
study were 27 coal mining and metal mineral sub-sector companies on the
Indonesia Stock Exchange in the 2018-2022 period. The validity test,
reliability test, normality test, multicollinearity test, and
heteroscedasticity test were carried out on research instruments.
The results of the study prove that profitability has a
positive and significant effect on capital structure. Asset structure has a
positive and significant effect on the capital structure. Sales growth has no
significant effect on capital structure. Simultaneously, profitability, asset
structure, and sales growth have a significant effect on the capital structure
of mining companies listed on the Indonesia Stock Exchange. The coefficient of
determination is 0.089 or 8.9%.