The study aimed to investigate the English language writing strategies used by
Business English major students in Academic Writing course at an international university in
Thailand. There were two major areas of concern, which were hoped to be addressed in the
course of the research. The study applied a mixed-method approach; it combined the
quantitative analysis of the Likert scale statements in the writing strategy questionnaires and
the students' writing samples with the qualitative analysis of the open-ended questions in the
questionnaires and the semi-structured interviews. The collected qualitative data would
provide an in-depth insight into the nature of the students’ writing. The implications of the
research were as follows: to raise the students' awareness of the English writing
compositional skills, to emphasize the communicative purpose of writing in English, and to
train them to use the peer collaboration strategy to facilitate their English writing most
effectively.