The PLA-PHA co-polyester fibers market is projected to grow from USD 748.0 million in 2026 to USD 1,940.1 million by 2036, at a CAGR of 10.0%. PLA-Rich Blends will dominate with a 38.0% market share, while hygiene & disposable textiles will lead the application segment with a 30.0% share.