After Hong Kong returned to China in 1997, those in the Chinese migrant community in the UK who anticipated returning to China saw the significant benefits of learning Mandarin. The challenges are not only related to the social and cultural differences between the Cantonese and Mandarin migrant groups, but also the intrinsic linguistic differences between the two languages. This case study investigated students' motivation, needs and barriers in relation to Chinese Mandarin learning. Previous research (Lo & Chen, 2014) found there was a communication gap between Cantonese and Mandarin speakers within the Chinese migrant community. This gap poses difficulties to the Cantonese speakers in their Chinese Mandarin learning. Establishing a Languages Exchanges Community (LEC) programme, involving both Cantonese and Mandarin groups, is seen as an appropriate means to bridge the gap and increase the learning outcomes for Cantonese speakers. [For the complete volume, "Innovative Language Teaching and Learning at University: Enhancing Participation and Collaboration," see ED565011.]