It is not an over-exaggeration to say that a leader is crucial for a firm's success. A leader establishes the vision and culture necessary for success and takes responsibility for major decisions. This paper explores the role of the CEO and how they lead a firm to success through the case of Hanmi Global, Co., Ltd., using the Seven Factor Leadership Model and the Competitive Strategic Chain Model. The Seven Factor Leadership Model identifies three roles: visionary, executor, and motivator, along with four character elements: values, passion, love, and wisdom. When a leader’s values are established, their passion and love emerge, leading to the development of wisdom. This wisdom underpins the leader's roles. By embedding values in a firm, management prioritizes a long-term perspective with people, technology, and customers over short-term profits, which are essential for success. Chairman Kim Chong–Hun, the CEO of Hanmi Global, exemplifies strong values. He founded the company with the goal of pioneering the construction industry reflecting his business values, fostering a sense of ownership among employees embodying his human values. His values reflect his passion for his work and love for his employees, contributing to his wisdom as a leader. He is a visionary who dreams about the company’s future, an executor with detailed field experience, and a motivator who strives to create the company a paradise for its employees with a supportive workplace. With these business and human values in mind, he has prioritized people, technology, quality, and customers. He understands the virtuous cycle where good people satisfy customers, which in turn enhances the company's competitiveness and profitability, ultimately attracting more talented people. This principle is at the heart of the Competitive Strategic Chain Model.