Mandarin Speaking Campaign Mandarin Speaking Campaign from Koh Shi Hui Mandarin Speaking Campaign Encouraging the younger generations to communication in Mandarin through an interactive online social application. View PDF View PDF gLike Mandarin Speaking Campaign Encouraging the younger generations to communication in Mandarin through an interactive online social application. Interaction Design Graphic Design Illustrator Illustration Share R 7 n Koh Shi Hui Visual Communication Student, Graphic Designer Singapore, Singapore Follow Contact