The Types segmentation classifies additives into six functional groups: Reinforcing fillers (carbon black, silica), Processing aids (waxes, plasticizers), Anti‑oxidants (phenolic, amine based), Anti‑ozonants (paraffinic, aromatic), Friction modifiers (silicone oils, polymers), and Curing agents (sulfur, peroxide). Reinforcing fillers constitute the largest share, roughly 45 % of additive spend, because they directly improve tensile strength and rolling resistance. Processing aids, at about 20 %, lower mixing energy and improve dispersion, thereby reducing production costs. Anti‑oxidants and anti‑ozonants together represent 15 % of the market, extending tire life by mitigating oxidative degradation and ozone cracking. Friction modifiers, contributing 12 %, are critical for safety performance, especially in wet conditions. Curing agents, the smallest segment at 8 %, enable cross‑linking chemistry that defines the final elastomeric network. This taxonomy clarifies each type’s quantitative impact on the overall Tire Additives market size.