Ambercycle uses chemistry and engineering to chemically depolymerize mixed end-of-life garments, purify the crude polyester, and re-form it into polymer chips identical to virgin feedstock; the team validated the output with a large brand in 2022 and aims to open a commercial plant by 2025 capable of regenerating over 250,000 garments per day, targeting polyester’s 52% share of apparel.