In the globalisation era, engaging youth in science and technology is a joint responsibility across nations. This study examined the effects of Global Korean Science Program (GKSP) on 608 Indonesian middle school students' attitudes towards science. Their science attitudes were assessed before and after the programme with Behaviour, Related Attitudes, and Intentions towards Science (BRAINS) survey. We also collected students' responses to an open-ended programme evaluation. The repeated-measures ANOVA was performed to compare students' attitudes before and after the programme by including gender effect, followed by clustering analysis and magnitude coding to analyse open-ended programme evaluation data. Results showed that GKSP improved students' behavioural and normative beliefs, suggesting that the programme had positive impacts on students' beliefs about the importance of science in daily life. The decline in students' control belief towards science after the programme indicates the possibility of science contents delivered in programme being more difficult than in the typical Indonesian science curriculum. Additionally, we found a significant gender effect on intention and normative dimensions. Furthermore, clustering analysis classified students into three groups; small changes (62%), increase trend (29%), and decrease trend (9%) indicating that most students participating in the study experienced a small science attitudes shift.