MP VAT Act (Summary of Rates) Rate. Products. Remarks. Tax-free. All items listed in Schedule I: 1%. All items listed in Part I of Schedule II : 5%. All items listed. Publications. Biomaterials and Tissue Engineering. SH Teoh, RL Martin, SC Lim, KH Lee, CK Mok and WC Kwok, Delrin as an occluder material. ASAIO Trans, 36, no.3 (1990. Les polymères naturels ont été parmi les premiers matériaux utilisés par l'Homme : bois et fibres végétales, cuir, tendons d'animaux, laine, etc.