What is HS 700510?
HS 700510 covers float glass that has been coated or surface-treated, including low-emissivity (Low-E) glass and solar-control variants. Float glass is produced by floating molten glass on a bed of molten tin, creating a uniform thickness and flat surface. The coating stage — typically applying metal oxide layers via magnetron sputtering or chemical vapour deposition — is what drives both the product's performance value and its classification sensitivity.
End uses span energy-efficient architectural glazing, curtain wall systems, automotive windshields, and photovoltaic module front sheets. The distinction between coated and uncoated float glass matters significantly at the border: coating type, emissivity ratings, and solar heat gain coefficients can all influence whether a shipment is classified under 700510 or an adjacent heading, making technical datasheets essential for any customs declaration.
Top Sourcing Countries for Coated Float Glass / Low-E Glass
China is the dominant global producer of coated float glass, with manufacturing capacity that is structurally larger than any other single origin. Chinese suppliers offer cost-competitive pricing underpinned by scale, integrated silica sand supply chains, and historically lower energy costs. However, anti-dumping investigations in the EU and India have materially altered the landed cost equation for buyers in those markets, and country of origin documentation is under heightened scrutiny.
Germany remains a premium-origin alternative, particularly for high-specification architectural and automotive glass. German producers such as AGC and NSG Group subsidiaries carry strong technical certifications and consistent coating quality, making them preferred sources for projects with strict performance standards. Pricing is structurally higher than Chinese equivalents but reflects lower compliance and classification risk.
India and Egypt are emerging as regionally cost-competitive suppliers for Middle East, African, and South Asian buyers. Indian producers benefit from growing domestic float glass capacity and preferential access to several regional trade agreements. Egypt's position as a low-cost Mediterranean producer makes it attractive for European buyers seeking non-Chinese origin material. Turkey serves as both a production origin and, notably, a transshipment node — buyers sourcing from Turkish intermediaries should verify mill certificates carefully.
Import Duty Rates and Trade Agreements
MFN duty rates for HS 700510 vary significantly by destination. The EU applies anti-dumping duties on Chinese-origin coated glass on top of standard MFN rates, substantially increasing the total duty burden. India has conducted its own anti-dumping investigations into imports from China, Malaysia, and other origins, with provisional and definitive findings affecting landed costs. Always verify current duty rates and any active trade remedy measures directly with the relevant customs authority before finalising supplier negotiations.
Free trade agreements can offer meaningful duty relief. EU importers sourcing from Egypt or Turkey should assess eligibility under the EU-Egypt Association Agreement and the EU-Turkey Customs Union respectively. Buyers in ASEAN markets benefit from intra-ASEAN preferences where applicable. Documenting rules of origin compliance — particularly where glass is coated in a different country from where it was melted — is essential to claim preferential rates and avoid post-clearance audits.
Cost Drivers and Price Outlook
Natural gas is the primary energy input for float glass furnaces, and price volatility in European and Asian gas markets feeds directly into manufacturer cost structures and export pricing. With Brent crude up approximately 7% month-on-month as of early 2026 and aluminium — used in coating processes and framing — up 10% over the same period, input cost pressures across the glass supply chain remain elevated heading into mid-2025 procurement cycles.
Silica sand costs are generally stable but regionally variable; Egyptian and Turkish producers benefit from proximity to lower-cost silica sources. Construction sector demand remains the dominant volume driver globally, meaning any softening in housing starts or commercial real estate activity in key markets will create pricing headroom for buyers. Conversely, accelerating solar panel manufacturing — particularly thin-film and bifacial module production — is sustaining demand for specialty coated variants and supporting price floors for higher-specification product.
Compliance and Sourcing Considerations
Transshipment risk for HS 700510 is rated medium, driven primarily by Chinese-origin glass being routed through third-country intermediaries — including Malaysia, Vietnam, and Turkey — to circumvent anti-dumping duties in the EU and India. Customs authorities in both jurisdictions have increased scrutiny of certificates of origin for this product category. Procurement teams should request mill test certificates, original production records, and verifiable chain-of-custody documentation rather than relying solely on supplier-issued certificates of origin.
Classification disputes are a recurring compliance issue. Specialty coatings, laminated constructions, and tempered variants can push product into adjacent HS headings (700600, 700721), affecting duty rates and statistical reporting obligations. If your product specification sits at a technical boundary, a binding tariff ruling from the relevant customs authority provides certainty before shipment.
How to Source Coated Float Glass / Low-E Glass Efficiently
- Define your coating specification precisely — emissivity value, solar heat gain coefficient, and substrate thickness — before approaching suppliers. Vague specs invite substitution risk and classification disputes.
- For EU or Indian import programmes, confirm the country of origin of both the base float glass and the coating process. Anti-dumping exposure can arise even when coating is performed outside China if the substrate originates there.
- Request ISO 9001 certification and EN 1279 compliance documentation (for European markets) as baseline supplier qualification criteria.
- Compare total landed cost across origins — factoring MFN duties, any applicable anti-dumping measures, freight, and energy surcharges — rather than ex-works price alone. A materially lower factory price from a high-risk origin can become uncompetitive after trade remedies are applied.
- Monitor natural gas price indices in your supplier's production region as a leading indicator of upcoming price adjustment requests from manufacturers.
- Use trade intelligence platforms to track shipment-level data for HS 700510, identifying active suppliers, port pairs, and volume trends before entering negotiations.
Get a free sourcing intelligence report for HS 700510 at Logitality.com