Malaysia Polymer International Conference 2025 (MPIC 2025) is the 9th conference in the series organized by the Polymer Research Center (PORCE), Faculty of Science and Technology, Universiti Kebangsaan Malaysia (UKM). MPIC is a bi-yearly conference which aims to internationalize polymer research in Malaysia through PORCE as a center of reference in polymer science and technology. MPIC 2025 serves as a platform for discussing and sharing information on research findings related to polymers and composites. MPIC brings together researchers and scientists from the academic and industrial sectors to share their latest scientific findings. MPIC also aims to promote, strengthen and expand the networking among researchers and research centers worldwide. The theme for MPIC 2025 is “Sustainable Polymers: Challenges & Opportunities”.