In the master’s 2nd year at NUAC, Nang Hee Phay Sar has represented his department at the 2016 Chinese Myanmar Friendship Cultural Exchange Conference. He formed a Youth Group of eight watercolor artists in 2017, annually organizing exhibitions and representing Myanmar at the 2017 Asian Students and Young Artist Art Festival in Seoul. Actively collaborating with fellow artists, Nang Hee participated in the Four in One Group Art Exhibition in 2022 and contributed to the Seven Art Planters Group Art Exhibition in 2023.