This study is motivated by the low level of human resource (HR) competence in Indonesia’s chemical manufacturing industry despite increasing investment in human capital development. The purpose of this study is to analyze the influence of supervisor support and learning culture on HR competence. A quantitative approach was applied using a survey of employees at PT Sinar Pacific International with standardized instruments. Data were analyzed using multiple linear regression. The results show that supervisor support has a positive and significant effect on HR competence, indicating that higher supervisor support leads to better employee competence. Conversely, learning culture has a negative and insignificant effect on HR competence, suggesting that the current learning practices have not contributed meaningfully to competence enhancement. These findings highlight the crucial role of supervisor support as an external factor in developing HR competence, while learning culture requires stronger institutionalization and integration to become an effective driver of employee competence.