Polyethylene Terephthalate (PET) Resin segmentation by application reveals five dominant end‑use categories that collectively drive the market’s revenue. Beverage packaging remains the largest segment, accounting for roughly 45 % of global PET resin consumption; its scale is anchored in carbonated‑soft‑drink and water bottle production, where PET’s clarity, barrier properties, and lightweight nature generate cost efficiencies. Food packaging follows with an estimated 25 % share, encompassing trays, microwaveable containers, and multilayer films; demand is reinforced by rising convenience‑food consumption and stringent food‑safety regulations. Textile fibers contribute about 15 %, primarily as polyester yarn for apparel and home‑textile applications, where PET’s durability and recyclability support fast‑fashion cycles. Automotive components represent near 10 % of the market, used in interior panels, under‑hood wiring harnesses, and lightweight structural parts, reflecting the industry’s shift toward weight reduction. Finally, electrical & electronic applications hold roughly 5 % of PET resin demand, supplying insulating films and housings for consumer electronics. Together, these application sub‑segments define the overall PET resin market size and shape strategic investment priorities.