Natural rubber front-month eased to CNY 19,310/t (-1.3%) while butadiene rubber held at CNY 16,750/t (+0.15%), compressing the NR-BR spread to CNY 2,560/t. As the spread narrows, tire makers tilt toward more natural rubber and less butadiene rubber, opening a recipe-substitution window.

The bigger move is on title. Once SNSUC's bonded digital warehouse receipts connected to the Zhongzheng platform, pledge lending shortened from T+3 to T+0: a company warehouses 5kt of rubber (about CNY 96.55m in value), the system mints a SHA-256 fingerprint receipt, and the bank releases funds instantly without waiting for third-party title confirmation.

That cash feeds straight into transshipment working capital, lifting the turnover multiple from 9x to above 10x. Cross-chain mutual recognition then lets the same receipt circulate a second time at a downstream bank, no re-pledging needed, releasing a second layer of liquidity.

Operationally: through the recipe window, lock natural rubber spot through bonded receipts rather than buying spot -- capture the spread and free the stored value at once. On-chain fingerprinting moves title confirmation earlier, so settlement shifts from "pay then receive" to "verify then deliver," one notch faster on default handling.