Sairuike is addressing the cost and scale barrier that has kept FDCA from replacing petroleum-based PTA by using a non-food glucose-to-glucaric-acid route designed to be compatible with existing PTA facilities, for lower-carbon materials used in packaging, textiles and other industries. Its 2026 A1 financing is funding a 10,000-ton flagship plant after pilot validation, while the first 5,000 tons are reported as more than 40% presold and backed by more than RMB1 billion in intended orders, testing whether the chemistry can reach commodity-scale production.