Work stress is one of the crucial issues in occupational health that can reduce employee productivity and well-being, especially in high-intensity industries such as PT. Adiprima Suraprinta. This study aims to identify the level of work stress and analyze its causes from individual, organizational, and environmental perspectives. This study employed a quantitative descriptive method with random sampling of 112 workers. The variables used included work stress levels as the dependent variable and stress-causing factors as independent variables. The instruments used in this study were the Perceived Stress Scale (PSS) questionnaire to measure work stress levels and a work stress questionnaire to identify sources of stress. The results of the study indicate that the majority of respondents experienced work stress in the moderate (60.7%) and high (35.7%) categories. The dominant individual factors included excessive workload (35 respondents), personal problems (28 respondents), and career uncertainty (26 respondents). organizational factors include role conflict, task ambiguity, and pressure from superiors. Meanwhile, environmental factors include traffic congestion (33 respondents) and exposure to pollution (29 respondents). Additionally, other factors, such as a lack of gratitude, disagreements within the team, and sudden layoffs, were also identified. This study concludes that work stress is multidimensional and requires an integrated approach, including psychological support and spiritual values, to create a healthy and productive work environment. Keywords: Work stress, individual factors, organizational factors, environmental factors, Perceived Stress Scale, PT. Adiprima Suraprinta