Shipping Galvanized Steel Coils to Africa and Southeast Asia

Open a container of galvanized steel coil after a long sea voyage and you'll understand why experienced buyers worry less about price than about rust. A few years back we watched a shipment of steel sheets arrive in Thailand with close to a third of the material corroded. The mill hadn't skimped on zinc coating. The exporter had skimped on packaging and moisture control, and the whole order paid for it. We're a steel coil supplier and trader based in Shandong, China, and we've shipped hot-dipped galvanized steel to 50 countries since 2014. Everything below comes from what we actually see go wrong, and what we changed because of it.

Sea freight is the workhorse for most farm and greenhouse projects. A full order of greenhouse framing, fencing, and irrigation pipe usually runs over 50 tons, and that size moves most economically by sea.

 China to Ho Chi Minh City, Bangkok, or Jakarta, roughly 7 to 14 days

 China to Durban (South Africa), normally 20 to 28 days

 China to Mombasa (Kenya), normally 25 to 35 days

 China to Lagos (Nigeria), normally 30 to 40 days

Air freight gets there in under a week, but at eight to twelve times the cost of sea, so we save it for emergency parts and small trial orders. Land freight suits buyers in Vietnam, Laos, and Myanmar, who can often receive material in five to ten days at a cost between air and sea.

A good routing decision is worth more than a discount. In 2025 we delivered 120 tons of galvanized steel pipe and sheet for a 50-hectare greenhouse project in Kenya. The obvious, slightly cheaper route ran through Dar es Salaam, but we've seen that inland stretch eat up weeks too many times. We booked Mombasa instead, sent the documents ahead for pre-clearance, and the cargo arrived five days before the schedule our client had planned around. His crew started erecting frames sooner, which saved him real labor cost. That kind of saving never shows up when you compare freight quotes side by side.

A customer needed 80 tons of galvanized steel coil for a farm in central Zambia. Straight air freight came back at about 45,000 dollars, and standard sea freight through Dar es Salaam looked like a 45-day wait. We sent the material by sea to Durban instead and organized cross-border trucking from there. The client paid roughly 25 percent less than the air option and had steel on site ten days sooner than the direct sea route would have allowed. It took extra coordination, but the gap between the cheapest quote and the cheapest overall cost is exactly where that work lives.

Packaging is where cheap suppliers save money and buyers pay later. Our standard export packaging looks like this.

• Coils get a layer of waterproof kraft paper, then two or three wraps of stretch film, and a firm seat on a reinforced wooden pallet with heavy strapping
• Sheets get corner protectors so the edges stay clean during loading
• Pipe gets capped ends and a light coat of rust-preventive oil
• Desiccant, five or six bags per pallet instead of the usual one or two, plus extra bracing and a waterproof tarpaulin over the whole pallet when the destination demands it

The zinc coating weight you specify, anything from Z60 to Z275 and above, sets the corrosion baseline, but no coating survives a wet voyage on its own. Our galvanizing line is certified to ISO 1461, and we verify the coating weight on every coil before it loads. That much packing sounds like overkill until you open a container in July and feel the sweat running down the steel.

Customs paperwork causes more delays than the ocean does. The basics are the same everywhere.

• Commercial invoice, packing list, bill of lading, certificate of origin, and a third-party inspection report

Then each country adds its own layer.

• Vietnam wants a TCVN 11670 compliance report from an approved lab, so we test at accredited Chinese laboratories before loading
• Thailand gives preferential rates under the ACFTA when you present a Form E certificate, and since January 2026 it has scrapped the low-value duty exemption, so every shipment now pays import duty plus 7 percent VAT, with the exact rate depending on the HS code
• Indonesia requires a valid API-U import license and product registration with the Ministry of Industry
• Nigeria demands SONCAP certification, and Kenya requires a PVOC certificate
• South Africa needs an importer code from SARS before the cargo arrives, a step made more urgent by the tariff increases on steel products introduced in May 2026

If any of this sounds like a moving target, that's because it is, so we sort it out before the vessel sails.

The route itself is the other variable right now.

• As of mid-2026 the Red Sea situation is still pushing most carriers around the Cape of Good Hope, adding ten days or more to African transits and lifting freight rates
• Port congestion swings as well, with Singapore and Johor seeing long waits in recent months and Mombasa holding around four days
• Book space three to four weeks ahead for congested destinations, and build a buffer into the construction schedule

Freight rates and waiting times shift every week, so the numbers in this guide will be stale before you finish reading it, but the planning habit will not.