Indian Metal Export Documents: MTC, COO & HS Codes Explained

A South African EPC contractor had a full 40-foot container of cable trays and earthing systems held at Durban port for 23 days in 2024. The reason was a wrong HS code on the Certificate of Origin, the customs agent had classified HDG cable trays under 7308.90 instead of the correct heading for that market. South Africa's ITAC levies different duties on these codes, and the mismatch triggered a documentation query. The container sat. The project site sat. The contractor paid 23 days of demurrage and a late-delivery penalty to the EPC principal. The mistake was made in the supplier's invoice, before the goods left Howrah. Understanding these documents before you place an order is the only reliable way to avoid paying for someone else's classification error.

Material Test Certificate (MTC), what it must contain

An MTC is not a quality certificate, it is a statement of actual test results for a specific heat or batch of raw material. A usable MTC references the actual heat number, shows chemical composition (C, Mn, Si, P, S, and where applicable Cr, Ni, Mo), and records mechanical properties (yield strength, tensile strength, elongation) from the mill's test bar. For galvanized products, the MTC must also include the galvanizing weight or thickness measurement and the standard applied (ASTM A123 / IS 4759). We issue EN 10204 Type 3.1 MTCs, signed by an independent inspecting authority, not just our QC team, for all export orders on request.

Certificate of Origin (COO), two types, two uses

The two COO types most buyers encounter are the Preferential COO (issued under a bilateral trade agreement, like India-UAE CEPA or India-UK FTA currently under negotiation) and the Non-Preferential COO (a simple proof of Indian manufacture). For GCC buyers under India-UAE CEPA, a valid Preferential COO can reduce import duty on cable trays from 5% to 0%, a saving of several thousand dollars on a full container. The Preferential COO is issued by the EEPC India (Engineering Export Promotion Council) or a notified Chamber of Commerce. We handle this coordination. Specify which type you need in your purchase order: Non-Preferential is standard; Preferential under CEPA requires 3–5 working days additional processing.

HS codes: get this wrong and you pay for it

• 7317.00: nails, tacks, staples. NOT cable trays. Common misclassification for perforated sections.
• 7308.90: iron and steel structures, sometimes used for cable tray, but generates duty queries in GCC countries.
• 8536.90 / 8544.59: electrical conduit fittings, wrong for galvanized steel trays.
• Correct HS for HDG ladder/perforated cable trays: 7308.90.90, 'Other structures and parts of structures of iron or steel' (confirm exact sub-heading with your destination-country broker).
• Copper-bonded earthing rods: 7418.19 or 8309.90, check destination carefully.
• We prepare the commercial invoice HS codes and confirm with the buyer's clearing agent before shipping.

Incoterms: the one line that defines 40 commercial obligations

FOB (Free On Board) means Vajra delivers the goods to Kolkata/Haldia port, loaded onto the vessel the buyer nominates. Risk and cost transfer to the buyer at that point. CIF (Cost, Insurance, Freight) means we arrange freight and marine insurance to the destination port. CFR (Cost and Freight) is CIF without the insurance. For first-time buyers sourcing from India, CIF is lower friction, you deal with one supplier, not a freight agent, a forwarder, and an insurer. For repeat volume buyers, FOB gives you control over freight costs and your preferred forwarder relationship. State your Incoterm in the RFQ. It changes the quotation scope and the document set.

At Vajra, MTC, COO and the correct HS classification are prepared as standard. The wrong HS code in your invoice is not an administrative error, it is a customs violation in the destination country. We check every shipment before it leaves Howrah.