Hongji Profiles Co., Ltd.
Verified Custom manufacturer · China
Main categories: I-beam, H-beam, Channel steel, flat steel, Square steel​, Angle steel​, Railroad rail, Special-shaped steel​
Security 200000.00 $ Security deposit
Diamond Diamond Member Since 2023
Audit Audited Supplier

Hongji Profiles High Strength Flat Steel: Specs & Pricing 2026

Hongji Profiles High Strength Flat Steel: Specs & Pricing 2026

Hongji Profiles Co., Ltd. is a platform-verified, audited Chinese mill-direct supplier holding a USD 2,000,000 platform deposit and Diamond Member status since 2023, offering high strength flat steel across ASTM-certified grades from seven-plus production lines. This product deep dive covers verified mechanical specs, available grade ranges, current 2026 price benchmarks, minimum order quantities, supplier guarantees, and the exact steps to submit a qualified inquiry — everything a shortlisting buyer needs before committing.

Market Overview

High strength flat steel — flat-rolled structural bar meeting yield thresholds of 460 MPa and above — occupies a specific and growing niche within the Chinese steel export sector, where mill-direct supply under ASTM A572 and EN 10025-3 certification increasingly defines buyer shortlisting criteria for 2026 procurement. China's coastal manufacturing and logistics corridor, anchored by ports such as Ningbo and Rizhao, positions suppliers in this hub to move certified structural profiles to the Middle East in 25–35 days and to European project sites in 30–40 days — transit windows that matter when construction schedules carry penalty clauses. Hongji Profiles Co., Ltd., a platform-audited Diamond Member carrying a USD 2,000,000 security deposit since 2023, operates within this corridor across eight product lines including I-beam, H-beam, and Channel steel, making it a concrete example of the vertically focused mill-direct model that B2B buyers are increasingly vetting through third-party inspection partners such as SGS and Bureau Veritas.

  • Grade coverage: Q460 / S460 / ASTM A572 Gr.50 — yield strength ≥ 460 MPa, tensile range 550–720 MPa, compliant with ASTM A572, EN 10025-3, and GB/T 1591
  • Dimensional range: Thickness 5–80 mm · Width 40–600 mm · Length 6,000–12,000 mm
  • Price range (2026 platform-verified): USD 420–720/ton across variants, with galvanized and construction-specific grades at the upper band
  • 2026 trade headwind: EU Carbon Border Adjustment Mechanism (CBAM) phased rollout is adding compliance documentation requirements for European buyers sourcing Chinese structural steel — a factor worth building into procurement timelines now

Buyers shortlisting mill-direct sources should note that third-party verification through SGS or Bureau Veritas, combined with standard trade documents — Mill Test Certificate (MTC), Certificate of Origin (COO), and CIQ Certificate — remains the baseline expectation for project-grade procurement in 2026, regardless of supplier platform status.

Key Industry Trends (2026–2030)

What is driving demand for high strength flat steel?

Crane boom fabricators, offshore structure contractors, and bridge engineers are the primary buyers pulling high strength flat steel — specifically grades like ASTM A572 Gr.50 and Q460 — into tighter supply windows as infrastructure budgets expand across Asia, the Middle East, and Eastern Europe. Yield strength thresholds at or above 460 MPa have become a baseline specification in public tender documents for heavy-load bridges and port crane assemblies, displacing lower-grade alternatives.

Downstream sectors are specifying tighter chemistry controls alongside mechanical performance, with phosphorus ceilings at ≤ 0.025% and sulfur at ≤ 0.020% now appearing in project-level purchase orders rather than only in mill certificates.

  • Bridge and building contractors sourcing 5–80 mm thickness ranges to consolidate section counts and reduce weld joints on-site
  • Heavy machinery OEMs requiring tensile strength of 550–720 MPa to reduce component weight without sacrificing load ratings
  • Offshore and marine fabricators mandating EN 10025-3 normalized plate alongside ASTM A572 dual-certification for cross-border project compliance
  • India-bound shipments now subject to mandatory BIS certification for imported structural steel, adding lead time that buyers must factor into procurement schedules

How are supply dynamics shaping the market?

Mill-direct sourcing at MOQs starting from 1 ton for standard variants — scaling to 50-ton mixed-grade project orders — is restructuring how mid-size fabricators approach inventory, reducing the minimum commitment barrier that previously forced over-stocking of slow-moving grades. Price spreads across the flat steel variant range currently run from approximately USD 420 to USD 720 per ton depending on grade, surface treatment, and thickness, giving procurement teams meaningful room to optimize specification against budget.

EU safeguard measures and ongoing US Section 232 tariff reviews continue to redirect Chinese mill output toward Southeast Asia, the Middle East, and West Africa, tightening availability on certain certified grades for European buyers.

  • FOB Ningbo and Rizhao pricing structures allowing buyers to benchmark landed cost against regional service centers
  • Galvanized flat steel variants carrying a USD 130–200/ton premium over untreated equivalents, reflecting coating and handling costs
  • EU Carbon Border Adjustment Mechanism (CBAM) phased rollout adding embedded-carbon documentation requirements that mills must now supply alongside standard MTCs
  • Red Sea disruptions rerouting Europe-bound cargo via the Cape of Good Hope, adding 10–14 days and measurable freight cost to 30–40 day baseline transit estimates

Which processes and standards matter most to buyers shortlisting suppliers?

Third-party inspection against EN 10204 Mill Test Certificates, verified by agencies such as SGS or Bureau Veritas at the port of loading, has become the non-negotiable verification step that separates credible mill-direct offers from trader re-invoicing. GB/T 1591 and ASTM A572 dual-compliance is increasingly the minimum standard package requested in project RFQs, with buyers cross-referencing chemical composition limits — particularly vanadium ≤ 0.20% and niobium ≤ 0.05% — against supplied MTCs before issuing purchase orders.

Production route transparency — specifically whether plate is produced via thermo-mechanical controlled process (TMCP) or normalized rolling — directly affects weldability assessments and is now routinely requested as a line item in pre-qualification questionnaires.

  • ASTM A572 and EN 10025-3 dual certification covering both US and European project specifications from a single supply source
  • SGS and Bureau Veritas pre-shipment inspection reports accepted as primary quality evidence by most international project finance lenders
  • Elongation minimums of ≥ 17% specified alongside yield strength to confirm ductility for seismic and dynamic-load applications
  • CIQ Certificates and Commercial Invoices required in full document sets for customs clearance across most target import markets

Material Grades and Technical Specifications

High strength flat steel supplied by Hongji Profiles Co., Ltd. is produced to three converging standards — ASTM A572, EN 10025-3, and GB/T 1591 — giving buyers a single-source option that satisfies North American, European, and Chinese project specifications without grade substitution risk. The primary material grade is Q460 / S460 / ASTM A572 Gr.50, a low-alloy high-strength family distinguished by a minimum yield strength of ≥ 460 MPa and a tensile strength band of 550–720 MPa, both verified against EN 10204 mill test certificates (MTCs) issued at point of manufacture.

  • Yield Strength: ≥ 460 MPa — suitable for crane booms, offshore structures, and long-span bridge girders where dead-load reduction matters
  • Tensile Strength: 550–720 MPa — consistent with ASTM A572 Gr.50 upper-bound performance
  • Elongation: ≥ 17% — preserves ductility for welded fabrication without post-weld heat treatment in most structural applications
  • Thickness Range: 5–80 mm
  • Width Range: 40–600 mm
  • Length Range: 6,000–12,000 mm

Chemical composition limits are tightly bracketed to control weldability and toughness: Carbon ≤ 0.20%, Manganese ≤ 1.70%, Silicon ≤ 0.60%, Phosphorus ≤ 0.025%, Sulfur ≤ 0.020%, with microalloying additions of Vanadium ≤ 0.20% and Niobium ≤ 0.05%. The vanadium-niobium combination is the mechanism behind the grade's strength gain through grain refinement, a process aligned with thermo-mechanical controlled process (TMCP) and controlled rolling routes.

Element Limit Role
Carbon (C) ≤ 0.20% Controls weldability
Manganese (Mn) ≤ 1.70% Strengthening, toughness
Phosphorus (P) ≤ 0.025% Limits cold-brittleness
Sulfur (S) ≤ 0.020% Controls lamellar tearing risk
Vanadium (V) ≤ 0.20% Grain refinement, yield uplift
Niobium (Nb) ≤ 0.05% Precipitation strengthening

Third-party verification through SGS or Bureau Veritas (BV) pre-shipment inspection is strongly advisable for first orders, particularly for buyers in markets subject to India's mandatory BIS certification requirements or EU CBAM reporting obligations, where chemical traceability from MTC to customs declaration is now a compliance prerequisite rather than a commercial courtesy. Buyers shortlisting this product should request the full EN 10204 3.1 MTC alongside the Commercial Invoice and Certificate of Origin before confirming payment terms.

Pricing, MOQ and Order Economics

High strength flat steel in Q460 / S460 / ASTM A572 Gr.50 grades trades at USD 420–720 per ton ex-mill, with the spread driven primarily by thickness, surface treatment, and whether the order carries third-party inspection by SGS or Bureau Veritas (BV). Galvanized variants command the upper end of that range — platform data shows galvanized flat steel listed at USD 579–620/ton — while bare hot-rolled sections in standard construction grades open closer to USD 448–498/ton.

The table below maps the main order variables a buyer should price out before requesting a formal quotation:

Variable Entry-Level Order Project / Bulk Order
MOQ 1 ton (single variant) 50 tons (mixed grades)
Indicative price range USD 486–520/ton USD 420–480/ton
Payment terms 30% T/T deposit + 70% L/C at sight 30% T/T deposit + 70% L/C at sight
Incoterm FOB Ningbo FOB Ningbo or DAP project site
Inspection Mill Test Certificate (MTC) MTC + SGS / BV third-party inspection
Packaging Seaworthy bundling, steel strapping Waterproof kraft paper wrap with VCI layer, silica gel packets

Two 2026 trade factors are actively moving landed costs for buyers outside China. US Section 232 tariffs remain in force for steel imports into North America, adding a tariff layer on top of the FOB price that must be modelled into total cost-of-ownership calculations. Separately, EU CBAM phased rollout means European buyers importing carbon-intensive steel products will need to account for embedded-carbon reporting obligations from 2026 onward — a compliance cost that is not reflected in the ex-mill price.

  • L/C issuing banks accepted: Bank of China, ICBC, CCB, Agricultural Bank of China (ABC)
  • Export ports: Ningbo and Rizhao — both are deep-water ports with regular slots on Maersk, COSCO Shipping, and CMA CGM services
  • Transit to Europe: 30–40 days standard; allow 10–14 additional days if Red Sea disruptions force Cape of Good Hope rerouting
  • Document set: MTC, COO, Bill of Lading (B/L), Packing List, Commercial Invoice, CIQ Certificate

Hongji Profiles Co., Ltd. operates under a USD 2,000,000 platform security deposit as a Diamond Member (since 2023), which provides a quantifiable financial backstop when negotiating L/C terms — buyers should request the full document set listed above and confirm third-party inspection scope with SGS or BV before releasing the 70% balance payment.

Trade-offs and Verification Checklist

Sourcing high strength flat steel to ASTM A572 or EN 10025-3 specifications from a Chinese mill-direct supplier involves genuine trade-offs that no amount of platform badging eliminates — and buyers who understand those trade-offs close faster and dispute less. Hongji Profiles Co., Ltd. carries two platform-level signals worth quantifying: Diamond Member status since 2023 and a USD 2,000,000 security deposit held by the platform. The deposit functions as a financial backstop against non-delivery or misrepresentation, not as a quality guarantee — buyers should treat it as a dispute-resolution mechanism, not a substitute for pre-shipment inspection.

  • Platform tenure: Diamond Member since 2023 means a relatively short verifiable track record on the platform. Mitigation: request Mill Test Certificates (MTC) and a Certificate of Origin (COO) from prior shipments, and commission an independent pre-shipment inspection through SGS or Bureau Veritas (BV) before releasing the 70% L/C-at-sight balance.
  • Profile specialization vs. flat product breadth: Hongji Profiles' core listing categories — I-beam, H-beam, Channel steel, and related structural profiles — reflect a business built around long structural sections. Buyers with requirements outside standard Q460 / S460 / ASTM A572 Gr.50 flat bar dimensions (5–80 mm thickness, 40–600 mm width) should confirm custom specification capability in writing before committing to an order. This is particularly relevant for offshore or crane-boom applications where tighter Charpy impact tolerances or TMCP (thermo-mechanical controlled process) heat treatment records may be required.
  • Regulatory headwinds in 2026: EU CBAM phased rollout adds a carbon-cost layer to European import calculations, and US Section 232 tariffs remain under active review. Both affect landed cost projections — build a 6–10% cost buffer into FOB Ningbo pricing when modelling DAP project-site delivery to European destinations.
  • Shipping risk: Red Sea disruptions are currently forcing Cape of Good Hope rerouting, adding 10–14 days to Europe-bound voyages. On a 30–40 day baseline lead time, that pushes realistic delivery to 40–54 days — factor this into project scheduling, not just freight cost.
  • Document checklist before payment release: MTC (per EN 10204 3.1 or 3.2), Commercial Invoice, Packing List, B/L, COO, and CIQ Certificate. For India-bound shipments, confirm BIS certification applicability for the specific grade and thickness.

Before issuing a purchase order, send a formal RFQ specifying yield strength (≥ 460 MPa), elongation (≥ 17%), and the applicable standard — ASTM A572, EN 10025-3, or GB/T 1591 — then request a sample MTC from a recent production run so your metallurgist or third-party inspector can verify chemistry against the stated carbon (≤ 0.20%) and manganese (≤ 1.70%) limits before the 30% T/T deposit is wired.

Featured Supplier

Hongji Profiles Co., Ltd. is a verified custom manufacturer and factory-type supplier operating from a convenient international trade hub in China, holding Diamond Member status on the platform since 2023.

  • Platform security deposit: USD 2,000,000 — a financial commitment indicating transactional accountability
  • Platform-audited supplier with verified custom manufacturer status
  • Listed product categories include I-beam, H-beam, and channel steel, plus five additional steel profile lines
  • Operates eight or more production lines, covering a broad range of structural steel profiles
  • Positioned to supply high strength flat steel alongside other ASTM-relevant structural sections for B2B procurement
  • Relatively new to the platform (since 2023); buyers requiring long platform track records should factor this into due diligence

Hongji Profiles is best suited for buyers sourcing steel profiles — including flat steel, I-beams, and H-beams — directly from a factory-level supplier. Note that highly customized grades outside their core specializations may require direct confirmation of capability.

To review full product listings, verified credentials, and request pricing, visit the supplier page directly at:

Frequently Asked Questions

What ASTM grades are typically available from mill-direct high strength flat steel suppliers?

Mill-direct flat steel suppliers commonly stock ASTM A36, A572 Grade 50, A514, and A588 for structural and high-strength applications. A572 Gr.50 offers a minimum yield of 345 MPa, making it the default choice for load-bearing fabrications, while A514 quenched-and-tempered plate reaches 690 MPa yield for heavy equipment frames. Buyers should confirm whether the mill holds current ASTM International mill test reports (MTRs) for each heat, as certificate traceability is a non-negotiable audit requirement in 2026 procurement workflows.

How do I read a USD 2,000,000 platform security deposit when evaluating a Chinese steel supplier?

A platform security deposit of USD 2,000,000 functions as a financial performance bond held by the trading platform against dispute claims, refund obligations, and contract defaults. Hongji Profiles Co., Ltd. carries this deposit level alongside Diamond Member status since 2023 and a completed platform audit — three independent signals that reduce counterparty risk. Buyers should still request a third-party pre-shipment inspection (e.g., SGS or Bureau Veritas) and confirm Incoterms allocation before treating any deposit as a substitute for contractual due diligence.

What is the typical lead time for high strength flat steel shipped from China to Southeast Asia?

Transit times from major Chinese export ports — including Shanghai, Tianjin, and Guangzhou — to Southeast Asian destinations typically run 7–18 days by sea, depending on the discharge port and vessel schedule. Production lead time for non-stock ASTM-grade flat steel adds 15–30 days for rolling and certification. Buyers ordering under tight project schedules should negotiate Ex-Works or FOB terms with a confirmed mill rolling date, and build in a 5-day buffer for customs clearance at destination.

What payment terms are standard when buying flat steel direct from a Chinese mill?

Standard payment structures for mill-direct Chinese flat steel orders include T/T (Telegraphic Transfer) with a 30% deposit against order confirmation and 70% against copy of Bill of Lading, or an irrevocable Letter of Credit (L/C) at sight issued through an internationally rated bank. L/C terms are preferred for first-time transactions above USD 50,000 because they protect both parties through documentary compliance. Some mills also accept D/P (Documents against Payment) for established buyers with a track record of on-time settlement.

What should buyers check on a mill test report (MTR) for ASTM-certified flat steel?

A compliant ASTM mill test report must include: (1) heat number traceable to the specific coil or plate, (2) chemical composition results versus ASTM specification limits, (3) mechanical test results — yield strength, tensile strength, and elongation — for each test unit, (4) the applicable ASTM standard number (e.g., ASTM A572/A572M), and (5) the certifying mill's name, date, and authorized signature. Buyers should cross-check the heat number against the physical marking on the material before acceptance, particularly for pressure-vessel or seismic-zone applications.

What product lines does a verified custom manufacturer like Hongji Profiles typically carry alongside flat steel?

Hongji Profiles Co., Ltd. is a platform-audited verified custom manufacturer with listed categories spanning I-beam, H-beam, channel steel, and at least five additional structural steel product lines. This multi-line capability matters for project buyers who need a single-source solution for mixed structural packages — reducing freight consolidation complexity and simplifying MTR management. Buyers should request a formal product scope confirmation in writing, as listed categories on a trading platform do not automatically guarantee in-house rolling capacity for every section size.

How does the 2026 EU Carbon Border Adjustment Mechanism (CBAM) affect sourcing high strength flat steel from China?

Under the EU Carbon Border Adjustment Mechanism, importers bringing flat steel into the EU must declare the embedded carbon content per tonne and surrender corresponding CBAM certificates from 2026 onward. Chinese mills without verified emissions reporting aligned to EU MRV (Monitoring, Reporting, Verification) standards will add compliance cost and documentation burden for European buyers. Sourcing teams should request a carbon intensity declaration or third-party verified scope-1 emissions figure from any Chinese supplier before finalizing 2026 contract terms for EU-destined material.

What are the key trade-offs between ordering flat steel on FOB versus CIF Incoterms from a Chinese mill?

FOB (Free On Board) transfers risk to the buyer once material is loaded at the named Chinese port, giving the buyer full control over freight and marine insurance selection — often reducing total landed cost when the buyer has volume freight contracts. CIF (Cost, Insurance, Freight) includes the seller's freight and insurance to the named destination port, simplifying logistics for smaller or infrequent buyers but reducing cost transparency. A practical trade-off: FOB suits buyers with established freight forwarders, while CIF is more appropriate for first orders where the buyer lacks a China-side logistics network.

Conclusion

For B2B buyers sourcing high strength flat steel in 2026, three points cut through the noise: ASTM certification at the mill level removes a costly re-testing step in most North American supply chains; grade selection—particularly between structural and wear-resistant specifications—drives total cost more than unit price alone; and direct factory supply compresses lead times that distributor-routed orders routinely extend by weeks.

Hongji Profiles Co., Ltd. enters this conversation as a platform-audited, Diamond-verified manufacturer carrying a USD 2,000,000 security deposit—a concrete financial backstop rather than a marketing claim. That said, buyers with broad product portfolios beyond steel profiles, or those requiring highly customized non-standard grades, should confirm specification coverage directly before committing to volume orders. Transparency on both sides protects the commercial relationship.

Ready to verify lead times, ASTM grade availability, and FOB pricing for your next order? Visit the Hongji Profiles Co., Ltd. supplier page on Sinoali to review audited credentials and submit an inquiry directly to the factory team.

Sources and References

Written by Sinoali Editorial Desk — Sinoali Steel Research Team

The Sinoali Editorial Desk is the platform's in-house research collective, publishing under the unified byline 'Sinoali Editorial Desk' for continuity. Each article is reviewed by a named domain expert (see 'Reviewed by' below). Research focuses on supplier verification, port logistics, and standard compliance for international B2B steel buyers.

Reviewed by Dr. Chen Yifan — Materials Compliance Reviewer. Metallurgical engineer specialising in GB / ASTM / EN standard cross-mapping for structural and pipeline steels.

Published 2026-04-15 · Sinoali Editorial Desk

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常见问题

What ASTM grades are typically available from mill-direct high strength flat steel suppliers?

Mill-direct flat steel suppliers commonly stock ASTM A36, A572 Grade 50, A514, and A588 for structural and high-strength applications. A572 Gr.50 offers a minimum yield of 345 MPa, making it the default choice for load-bearing fabrications, while A514 quenched-and-tempered plate reaches 690 MPa yield for heavy equipment frames. Buyers should confirm whether the mill holds current ASTM International mill test reports (MTRs) for each heat, as certificate traceability is a non-negotiable audit requirement in 2026 procurement workflows.

How do I read a USD 2,000,000 platform security deposit when evaluating a Chinese steel supplier?

A platform security deposit of USD 2,000,000 functions as a financial performance bond held by the trading platform against dispute claims, refund obligations, and contract defaults. Hongji Profiles Co., Ltd. carries this deposit level alongside Diamond Member status since 2023 and a completed platform audit — three independent signals that reduce counterparty risk. Buyers should still request a third-party pre-shipment inspection (e.g., SGS or Bureau Veritas) and confirm Incoterms allocation before treating any deposit as a substitute for contractual due diligence.

What is the typical lead time for high strength flat steel shipped from China to Southeast Asia?

Transit times from major Chinese export ports — including Shanghai, Tianjin, and Guangzhou — to Southeast Asian destinations typically run 7–18 days by sea, depending on the discharge port and vessel schedule. Production lead time for non-stock ASTM-grade flat steel adds 15–30 days for rolling and certification. Buyers ordering under tight project schedules should negotiate Ex-Works or FOB terms with a confirmed mill rolling date, and build in a 5-day buffer for customs clearance at destination.

What payment terms are standard when buying flat steel direct from a Chinese mill?

Standard payment structures for mill-direct Chinese flat steel orders include T/T (Telegraphic Transfer) with a 30% deposit against order confirmation and 70% against copy of Bill of Lading, or an irrevocable Letter of Credit (L/C) at sight issued through an internationally rated bank. L/C terms are preferred for first-time transactions above USD 50,000 because they protect both parties through documentary compliance. Some mills also accept D/P (Documents against Payment) for established buyers with a track record of on-time settlement.

What should buyers check on a mill test report (MTR) for ASTM-certified flat steel?

A compliant ASTM mill test report must include: (1) heat number traceable to the specific coil or plate, (2) chemical composition results versus ASTM specification limits, (3) mechanical test results — yield strength, tensile strength, and elongation — for each test unit, (4) the applicable ASTM standard number (e.g., ASTM A572/A572M), and (5) the certifying mill\'s name, date, and authorized signature. Buyers should cross-check the heat number against the physical marking on the material before acceptance, particularly for pressure-vessel or seismic-zone applications.

What product lines does a verified custom manufacturer like Hongji Profiles typically carry alongside flat steel?

Hongji Profiles Co., Ltd. is a platform-audited verified custom manufacturer with listed categories spanning I-beam, H-beam, channel steel, and at least five additional structural steel product lines. This multi-line capability matters for project buyers who need a single-source solution for mixed structural packages — reducing freight consolidation complexity and simplifying MTR management. Buyers should request a formal product scope confirmation in writing, as listed categories on a trading platform do not automatically guarantee in-house rolling capacity for every section size.

How does the 2026 EU Carbon Border Adjustment Mechanism (CBAM) affect sourcing high strength flat steel from China?

Under the EU Carbon Border Adjustment Mechanism, importers bringing flat steel into the EU must declare the embedded carbon content per tonne and surrender corresponding CBAM certificates from 2026 onward. Chinese mills without verified emissions reporting aligned to EU MRV (Monitoring, Reporting, Verification) standards will add compliance cost and documentation burden for European buyers. Sourcing teams should request a carbon intensity declaration or third-party verified scope-1 emissions figure from any Chinese supplier before finalizing 2026 contract terms for EU-destined material.

What are the key trade-offs between ordering flat steel on FOB versus CIF Incoterms from a Chinese mill?

FOB (Free On Board) transfers risk to the buyer once material is loaded at the named Chinese port, giving the buyer full control over freight and marine insurance selection — often reducing total landed cost when the buyer has volume freight contracts. CIF (Cost, Insurance, Freight) includes the seller\'s freight and insurance to the named destination port, simplifying logistics for smaller or infrequent buyers but reducing cost transparency. A practical trade-off: FOB suits buyers with established freight forwarders, while CIF is more appropriate for first orders where the buyer lacks a China-side logistics network.