The objectives of this study were to find the relationship between the company characteristics, demography of engineers and their perception of the AEC (ASEAN Economic Community) and its environment influencing the decision to develop their foreign language skills, in Bang Poo industrial area, Samuthprakarn, Thailand. The scope of this study was also based only on engineers who were working in Bang Poo industrial area. The study used quantitative research by distributing a structured questionnaire to collect data from 252 respondents. Both descriptive and inferential statistics were used to analyze the results of this research. The findings from the descriptive analysis showed that the majority of the respondents were male and single. They were aged between 21-30 years old, holding a Bachelor’s degree, with work experience of less than five years, working in a large company in fertilizer, paint and chemical product industries. They were mostly receiving information about the AEC through TV programs and the internet. The Five-level Likert scale were chosen to be used to measure the attitude on the perception of the AEC and its environment level and the decision making level. The results of the hypotheses testing found that the demographic data and company characteristics had a significant relationship on the perception of engineers on the AEC and its environment. The perception of cultural diversity and perception of ASEAN MRAs (Mutual Recognition Arrangements) on engineering services has some influence on decision making by engineers to develop their foreign language skills.

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