This study aims to analyze the influence of Human Resource Quality, Leadership, and Employee Motivation on Performance Achievement, with Sustainable Strategy serving as an intervening variable at the East Palm Oil Mill (PKS East) of PTPN IV Regional II. The problem addressed in this study is the suboptimal performance achievement of employees, which is influenced by the quality of human resources, leadership, work motivation, and the implementation of sustainable strategies within the organization. The research employed a quantitative approach, with data collected through questionnaires distributed to employees of PKS East PTPN IV Regional II. Data analysis was conducted using the Structural Equation Modeling (SEM) method based on Partial Least Squares (PLS) with the assistance of SmartPLS 3.0 software. The analysis included outer model testing, inner model testing, and both direct and indirect hypothesis testing. The results indicate that Leadership does not have a significant effect on Performance Achievement, as evidenced by a T-statistic value of 1.308 and a P-value of 0.096. However, Leadership has a positive and significant effect on Sustainable Strategy, with a T-statistic value of 3.829 and a P-value of 0.000. Human Resource Quality also does not significantly affect Performance Achievement, with a T-statistic value of 0.354 and a P-value of 0.362, but it has a positive and significant effect on Sustainable Strategy, with a T-statistic value of 2.393 and a P-value of 0.009. Employee Motivation has a positive and significant effect on Performance Achievement, with a T-statistic value of 3.527 and a P-value of 0.000, and also positively and significantly affects Sustainable Strategy, with a T-statistic value of 2.678 and a P-value of 0.004. Furthermore, Sustainable Strategy has been proven to have a positive and significant effect on Performance Achievement, with a T-statistic value of 4.592 and a P-value of 0.000. The indirect effect analysis shows that Sustainable Strategy significantly mediates the influence of Leadership on Performance Achievement, with a T-statistic value of 2.629 and a P-value of 0.004. In addition, Sustainable Strategy significantly mediates the influence of Human Resource Quality on Performance Achievement, with a T-statistic value of 2.009 and a P-value of 0.023, and also mediates the influence of Employee Motivation on Performance Achievement, with a T-statistic value of 2.698 and a P-value of 0.004. Therefore, Sustainable Strategy plays an important role in improving employee Performance Achievement while strengthening the effects of Leadership, Human Resource Quality, and Employee Motivation on organizational performance. The findings indicate that organizational success is determined not only by the direct influence of human resource quality, leadership, and work motivation but also by the organization's ability to effectively implement sustainable strategies.
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