The fact that the share of companies skeptical about the effectiveness of training more than quadrupled in a single year (from 3.2% to 13.8%) (Survey on the Status of Corporate Vocational Training, 2024) signals a growing warning light for confidence in corporate training. For corporate training to achieve its intended goals of improved performance and outcomes, the content of the training must be applied on the job, and whether its goals have been met and what value it has delivered must be evaluated so that the training can be continuously improved. This analysis found, however, that Korean companies concentrate on program planning and design and on operational preparation, while activities to promote on-the-job application and the evaluation and improvement of programs remain insufficient. This points to a need for institutional improvement that would incorporate “the establishment of plans to promote on-the-job application and to evaluate performance” into the participation requirements for government-supported vocational competency development projects.