The green supply chain has become a central concern for global businesses, particularly in maritime industries, where sustainable development is pursued as both an economic growth strategy and a means of environmental preservation. This study seeks to identify the key challenges to implementing green supply chain in Vietnam. The Analytical Hierarchy Process (AHP) is employed to assess the significance of various factors, while Fuzzy Structural Modeling (FSM) is used to explore their interrelationships. Five major factors - economic, technological, organizational, governmental, and social - are identified as critical to the implementation of green supply chain. The study highlights that the organizational factor is the most crucial, with customer pressure, particularly regarding environmental standards from export countries, being the most influential sub-factor. The findings provide important insights for developing government policies, offering support to businesses, and guiding investment decisions in green supply chain.

Abstract
1. Introduction
2. Literature Review
    2.1 Factors affecting the implementation of the green supply chain
    2.2 Research gap
3. Methodology
    3.1 Introductions of method used
    3.2 Selection of experts
    3.3 Data collection
4. Results and discussion
    4.1. AHP
    4.2. FSM
5. Conclusion
    5.1 Proposed solution
    5.2 Limitation of work
References

• Thi Tinh PHAM(Dept. of International Business and Logistics, Vietnam Maritime University, Vietnam)
• Thi Minh Hoang DO(Dept. of Faculty of Economics, Vietnam Maritime University, Vietnam) Corresponding author
• Thi Thu Hao HOANG(Dept. of International Business and Logistics, Vietnam Maritime University, Vietnam)
• Thi Van Anh NGUYEN(Dept. of International Business and Logistics, Vietnam Maritime University, Vietnam)
• Nhu Ngoc NGUYEN(Dept. of International Trade Economics, Vietnam Maritime University, Vietnam)