摘要:Solid waste generated on land could potentially contribute continuously to marine waste, with current municipal solid waste management (MSWM) focusing on human-related activities as the main source. While there has been challenges and opportunities in the MSWM’s partnership in the growing waste generation for the coastal tourism area, the aim of this study is to explore public and private sectors as the key players to identify challenges, opportunities, and need for further analysis of the synergistic MSWM services in the Eastern Economic Corridor (EEC), Thailand. A mixed-method approach was adopted, including primary data collected through semi-structured interviews and questionnaire surveys. Content analysis, descriptive statistics, and chi-square tests were applied. The results show that the public sector has different MSWM strategies—with public-private partnership (PPP) and without PPP, with many challenges in the EEC region—while the private sector has a lot of potential for MSWM effectiveness. The synergistic opportunities from both sectors can therefore be considered for possible integration into four aspects: challenging synergies within the public sector, potential synergies via the private sector, synergies with a cross-sectoral partnership, and synergies through other types of partnership. Additionally, a synergic partnership was another appropriate approach for MSWM services enhancement.