Global BDO-PTMEG-Spandex market was valued at US$ 3751.3 million in 2023 and is projected to reach US$ 5389.2 million by 2030, at a CAGR of 5.3% during the forecast period. This integrated chemical value chain, originating from butanediol (BDO) and progressing through polytetramethylene ether glycol (PTMEG) to spandex fiber, represents a critical backbone for modern textile and automotive...