BIO-BASE PDO Bio-based PDO (Bio-based 1,3-Propanediol) — PTT Downstream, Capacity Landscape & Market Outlook (2026) SEO keywords: bio-based PDO , 1,3-propanediol , fermentation route , PTT , PTT fiber , Sorona® , Primient , CovationBio , capacity expansion , oversupply risk , bio-based materials One-line takeaway Bio-based PDO enables a “fermentation-over-petrochem” pathway for greener materials; PTT fiber is the largest value sink, while 2026 marks a critical window where capacity growth must be matched by demand realization. What you’ll get ✅ Understand the PDO → PTT chain ✅ Decode CovationBio’s exit & capacity repricing ✅ Track key trends for 2026–2030 Quick na...