| 1 | Integrated Steel Mill Direct Supplier | Hot-rolled, cold-rolled, or galvanized coils produced under controlled mill schedules | Large manufacturers, infrastructure contractors, and long-term industrial buyers | 500–5,000+ metric tons | 4–12 weeks | Consistent production control, traceability, and competitive pricing for volume contracts | Mill test certificate, chemical composition, mechanical test results, inspection certificate, certificate of origin | FOB, CFR, CIF | High minimum order and limited flexibility for small buyers |
| 2 | Specialized Export Trader | Aggregated supply from multiple mills and export-ready carbon steel coil programs | Importers, distributors, and buyers requiring destination-market support | 100–2,000 metric tons | 3–10 weeks | Supplier comparison, export documentation, freight coordination, and flexible sourcing | Mill certificate, packing list, commercial invoice, bill of lading, origin and inspection documents | FOB, CFR, CIF | Margin opacity and possible variation between mills |
| 3 | Independent Steel Broker | Transaction matching between buyers, mills, traders, and stockholders without owning inventory | Experienced buyers with clear specifications and established inspection procedures | 100–1,000+ metric tons | 2–8 weeks | Broad market access and potentially lower intermediary overhead | Seller authorization, mill certificate, inspection report, contract terms, and payment-security records | FOB, CFR, CIF | Limited control over physical stock and counterparty reliability |
| 4 | Regional Steel Stockholder | Coils held in warehouses near major ports or industrial centers for immediate release | Small and medium manufacturers, fabricators, and urgent project buyers | 5–500 metric tons | 2–14 days from available stock | Short delivery time, local collection, and smaller order quantities | Warehouse stock list, coil identification records, mill certificate, weight certificate, inspection report | EXW, FCA, DAP | Higher unit price and possible storage-related surface issues |
| 5 | Steel Service Center | Coils with slitting, cut-to-length, leveling, recoiling, or other processing services | Automotive, appliance, construction, and general fabrication supply chains | 5–300 metric tons | 1–6 weeks | Delivered dimensions, reduced processing workload, and tailored packaging | Mill certificate, processing tolerance report, dimensional inspection record, packing list | EXW, FCA, DAP | Processing charges and tolerance disputes |
| 6 | Digital B2B Marketplace Supplier | Online listings connecting buyers with mills, traders, stockholders, and exporters | Price-sensitive buyers conducting supplier discovery and multi-quote comparisons | 1–1,000+ metric tons | 2–12 weeks | Fast supplier comparison, broad geographic reach, and electronic quotation workflows | Business registration, verified address, mill certificate, third-party inspection, trade references | FCA, FOB, CFR, CIF | Misleading listings, impersonation, and inconsistent product descriptions |
| 7 | Manufacturer-Integrated Distributor | Authorized or contracted distribution supported by production allocation and technical service | OEMs and repeat industrial buyers needing stable specifications and supply programs | 50–2,000 metric tons | 3–10 weeks | Technical support, production allocation, and more consistent after-sales service | Distribution authorization, quality certificate, mill test certificate, audit report, inspection records | FCA, FOB, CFR, CIF | Restricted product range or dependence on one production source |
| 8 | Regional Importer and Distributor | Imported coils cleared through local customs and distributed from domestic inventory | Buyers seeking local currency, domestic delivery, or simplified import procedures | 10–500 metric tons | 2–21 days from local stock | Local compliance knowledge, domestic transport, and reduced customs workload | Import entry, certificate of origin, mill certificate, tax invoice, warehouse records | DAP, DDP, FCA | Local price premium and limited availability of unusual grades |
| 9 | Project Procurement Agent | Sourcing, supplier qualification, inspection coordination, and logistics management for projects | EPC contractors, construction projects, and buyers with complex documentation needs | 100–10,000+ metric tons | 6–20 weeks | Specification management, inspection scheduling, consolidation, and milestone reporting | Approved vendor list, inspection and test plan, mill certificates, progress reports, shipping documents | FCA, FOB, CFR, CIF, DAP | Additional service fees and longer communication chains |
| 10 | Secondary, Excess, or Liquidation Stock Supplier | Prime excess, surplus, downgraded, aged, or non-standard coils offered at discounted prices | Non-critical applications, trial orders, repair work, and highly price-sensitive buyers | 1–500 metric tons | 1–21 days when physically available | Lower purchase cost and access to discontinued or hard-to-source dimensions | Actual coil photos, condition report, available test data, weight certificate, inspection report | EXW, FCA, DAP | Uncertain surface condition, chemistry, dimensional tolerance, and warranty coverage |
