The application dimension of Poly(vinyl chloride) Carboxylated (PVC-COOH) segmentation captures the material’s functional role across end‑use sectors. In construction, PVC‑COOH is employed for pipe systems, façade profiles, and flooring due to its enhanced chemical resistance and adhesion, accounting for roughly 35 % of market volume. The automotive segment, representing about 25 % of sales, leverages the polymer’s carboxyl groups to improve compatibility with metal substrates and to enable lightweight interior trim components. Electrical and electronics applications, contributing 20 % of the market, rely on PVC‑COOH for insulated wiring and cable jacketing where flame‑retardancy and dielectric stability are critical. The medical field, with a 12 % share, utilizes the polymer for tubing and disposable devices because of its biocompatibility and sterilization tolerance. Finally, packaging—primarily rigid containers and specialty films—holds an 8 % slice of the market, driven by the polymer’s barrier properties and ease of surface modification. Together, these application categories define the overall PVC‑COOH market size and guide strategic investment.