Most importers start by bringing in complete vehicles. But once volumes grow — or once a government starts rewarding local assembly — a different question appears: should this car arrive built, or arrive in pieces? In the trade you will see the answer written as SKD, CKD or DKD, with CBU describing the fully finished vehicle. Choosing the right structure can change your duty base, your freight bill and your certification path. Choosing the wrong one can leave a half-assembled car and a customs dispute in your yard.
This guide explains what each kit format means, when it pays, and what to verify before you commit.
CBU (Completely Built Up) is the vehicle as you know it: finished, on wheels, ready to drive off the ship. It is the simplest option and the right default for most first orders.
SKD (Semi Knocked Down) sits a step below CBU. Major assemblies are already together — typically the body is welded and painted, and the engine and gearbox may be fitted — but components such as wheels, batteries, glass, seats or trim are packed separately and refitted at destination. SKD is often used where local rules require some local value-add, or where it is cheaper to ship certain items loose.
CKD (Completely Knocked Down) is a full kitset: bodies, panels, sub-assemblies and individual parts are packed for local welding, painting and final assembly. CKD gives the deepest local content and the greatest potential duty benefit, but it demands a real assembly operation.
DKD (Disassembled Knocked Down) is broadly a form of full knock-down where the unit is disassembled and packed as flat as practical — panels, frames and boxes stacked for maximum container density. The exact definitions of each term are not universal, and countries set their own thresholds, so the label matters less than the customs classification the goods will actually attract.
There are three commercial reasons kit importing exists, and they rarely all point the same way.
1. Duty and classification. In many jurisdictions a completely knocked-down kit may be classified and taxed as parts rather than as a finished vehicle, and parts duty is frequently lower than vehicle duty. Some countries publish explicit rules for what percentage of a kit must be dismantled before it qualifies. Where those rules are met, the duty saving on a container of vehicles can be substantial.
2. Freight efficiency. A knocked-down unit occupies less volume than a finished car, so more units fit per container and the freight cost per vehicle falls. For dense items, packing flat also reduces wasted air space.
3. Local assembly incentives. Many African and Middle Eastern governments actively encourage local assembly through tariff concessions, local-content schemes or investment incentives. Buyers who are already building a dealer or fleet business sometimes move to kit assembly to qualify for those programmes and to build local capability.
Kit importing is not simply "a cheaper CBU". Four checks decide whether it works.
Customs classification and ruling. Ask your customs broker — in writing — how the specific kit will be classified at your port, and what dismantling threshold applies. Do not assume a "CKD rate" exists until the classification is confirmed. A wrong assumption turns the whole saving into a penalty.
Assembly capability. CKD and DKD require a genuine operation: a space, jigs, welding, paint, tools, trained technicians and quality control. SKD needs far less. Be honest about what you can actually do — a kitset is only cheaper if you can finish it.
Certification and homologation. New-vehicle standards often apply to the finished vehicle, not to the kit. Confirm who holds the type approval, whether the assembled vehicle can be registered, and whether re-certification or inspection is required after assembly. This is the step most often missed.
Warranty and quality risk. Every extra hand at destination is a new source of quality variance. Agree in writing who owns warranty on assembly-related faults and keep the assembly manual, torque specs and part catalogue on hand.
Kit cargo is unforgiving. A single missing bracket can stop an assembly line. Practical rules:
The document set should include the commercial invoice describing the kit components, a line-by-line packing list with part numbers and HS codes, the bill of lading, a certificate of origin where applicable, and any product certificates for regulated items. Where a local-content scheme is claimed, keep records proving the qualifying content. Agree in advance what happens if a component is missing or wrong — replacement, credit note or refund — and within what period.
Kit importing makes little sense at low volume, without an assembly set-up, where local rules require a finished CBU, or where re-certification after assembly is impossible or uneconomic. For a first order, a small CBU shipment usually teaches you more about your market than a kitset you are not yet equipped to finish.
Often, but not automatically. If the kit qualifies as parts and parts duty is lower than vehicle duty, the duty saving can be significant, and knocked-down units use less container space. The saving only survives if you can assemble locally and the classification is confirmed in advance by your customs broker.
SKD arrives with major assemblies already built — body, and sometimes engine and drivetrain — with minor items packed loose for refitting. CKD arrives as a full kitset for local welding, painting and final assembly. SKD needs a light assembly capability; CKD needs a real assembly operation.
Yes. Vehicle standards usually apply to the finished vehicle, so confirm who holds the type approval, whether the locally assembled vehicle can be registered, and whether inspection or re-certification is required after assembly.
It varies with the model and how flat it packs. Knocked-down units are denser than finished cars, so more units fit per container — but confirm the loading plan with the exporter, because a badly packed kit wastes the same space as a built car.
That must be agreed in writing before shipping. Insist on a line-by-line packing list reconciled against photographs of the load, and fix the remedy — replacement, credit or refund — and the claim period in the sales contract.
Planning a kit or CBU programme from China? Contact Shengyue Auto — we handle model selection, CBD/SKD/DKD kit preparation, compliant export documentation and shipping to Africa, the Middle East and beyond. Email: shengyue4499@gmail.com | WhatsApp: +86 19121331679 | www.shengyueauto.com