Project-Based Learning in Teaching English for Business in a Blue Economy Perspective

English for business is part of ESP and provides learning trends by elaborating blue economy to enrich knowledge and practice. This study aims to investigate the effectiveness and application of project-based learning in improving students’ language skills related to English for business from a blue economy perspective. This is a qualitative study in which a semi-structured observation guide and interview are the data collection method. Semi-structured observation guide is used to find out the application of project-based learning through the teaching activities and students’ papers, meanwhile, the interview is conducted to know the students’ understanding of business knowledge, and their language mastery. There are thirty-five students in English for business the participants. The results show that students improve their knowledge not only in English skills but also in business-related to blue economy perspective. Students can write business plans to provide the solution for developing small and medium enterprises for the community in the coastal area. Therefore, the language skills in terms of grammar and vocabulary are enhanced through writing. The study provides a recommendation that field study should be given for the students to know the real-world activity of businesses dealing with the blue economy and to enhance students’ practice of business writing.