Update Log

Reviewed the existing guide inventory against the long-form originality standard and expanded older short guides into fuller buyer-file playbooks.

Added 10 original long-form buyer playbooks covering quotation revision, production address evidence, bank-change protocol, mixed-SKU packing, broker descriptions, warranty terms, tooling ownership, loading photos, component substitution, and reorder drift records.

Added 10 buyer-file guides on PO revisions, invoice differences, packing-list data, origin evidence, broker questions, sample approval, and after-sales claim records.

Added 10 current-trade briefings on mineral controls, corridor changes, tariff files, airfreight pressure, and small-parcel compliance updates.

Grouped the guide index by transaction stage and tightened metadata for indexing review.

Added methodology, trade-file resources, and update notes to make the site easier to evaluate as a maintained publication.

Expanded the library to 43 guides covering supplier checks, invoice review, import records, payment risk, and shipment evidence.

Reviewed sitemap, canonical links, Article schema, 404 noindex behavior, and old-template residue after the static rebuild.