1,4 Butanediol Derivatives Market By Product by Application (THF, GBL, Spandex, PBT, PTMEG, NMP, NVP, PVP, PBS, PBAT, TPU), By End-User (Automotive, Healthcare and Pharmaceutical, Textile, Electronics, and Others) - Growth, Share, Opportunities & Competitive Analysis, 2026 - 2034