Finding a factory is not the hard part. The hard part is the workflow that follows: the spec, the sample approval, the production slot, the inspection, the border, the money, the paperwork, the proof. SultanaExpress makes that chain native product primitives — escrow on a real double-entry ledger, sample-gated production, bookable factory capacity, AQL quality control — self-serve, not a managed service bolted onto a directory.
One Go service is the application, and it is the only thing trusted. The database stores rows; it does not decide who may read them, does not move money, and does not encode rules. Every price, every status change, every permission is computed on the server. As of 2026-08-17 the build plan counts 650 steps; 481 are done, the hardest work first — the money spine, tenant isolation, the manufacturing engines. No change merges without passing 52 merge-blocking CI checks.
One honesty rule governs this page: a finished backend is not the same as a screen you can click. Every capability below carries a status tag, and the tags mean exactly what they say. The supplier workspace is usable today — verification, catalog, pricing, inventory, quotes, orders. The buyer journey is built from search to checkout and order tracking; its tech-pack review slice and the operator console are still in build. Both facts are on this page.