This case study analyzes the HRM challenges faced by Good Luck Aircraft, an international company with subsidiaries in China, Singapore, and Vietnam. The report, presented from the perspective of an International HRM consultant, identifies key issues such as negative organizational culture, communication breakdowns between headquarters and subsidiaries, inadequate diversity management, and ineffective HR practices, including performance appraisal. The consultant proposes solutions to prevent the recurrence of these issues, emphasizing the need for stronger HR policies, improved communication frameworks, optimized employee roles, and enhanced training programs. Recommendations include improving team working environments, establishing new quality standards, and implementing a decentralized management system. The report concludes with a presentation plan for the organization, offering actionable steps to address the challenges and improve overall performance, employee relations, and profitability.