Lab visit and research collaboration with Prof. To Thi Hien (Ho Chi Minh City University of Science, VNU-HCM) 

Prof. Yoko Iwamoto from Hiroshima University, Japan

Lab visit by Prof. Hayati Sari Hasibuan from Universitas Indonesia.

Collaborating with Prof. Mohd Talib Latif at Universiti Kebangsaan Malaysia on passive sampling in Malaysia.