FBA Prep in China vs the US: the Per-Unit Math
Prep at source or prep at destination? The per-unit comparison — labeling, poly-bagging, cartons and the freight leg you delete — shown line by line.
Bolang Solutions is a trading company. We chose the model on purpose: it lets us buy across many factories instead of selling you one production line, inspect goods we don't manufacture, and put our own name on every export document as seller of record. The industry's trading-company horror stories are concealment stories — so we run the opposite playbook: registered scope public, address public, and a standing invitation to verify us on gsxt.gov.cn the same way we verify suppliers.
Source: https://bolangast.com/about, retrieved 2026-08-10
On shipments we trade, the commercial invoice, packing list and bill of lading carry Bolang as seller of record. One counterparty, legally on the hook, answering in English.
Verify us the way we verify suppliers — our registered name, address and Unified Social Credit Code are published on this site; look us up on gsxt.gov.cn.
The FBA prep decision is usually made by habit and defended by vibes. It is actually four lines of arithmetic per unit — and one structural fact: prepping at source deletes a freight leg and a handler from the chain. Here is the math with the lines labelled and the values left open, so you can drop your own numbers straight in.
The per-unit comparison
| Line | Prep in China | Prep in the US |
|---|---|---|
| Prep labour (label, poly-bag, carton compliance) | your figure | your figure |
| Extra freight leg (factory → prep center → Amazon) | — (ships FBA-ready) | your figure |
| Extra handling / receiving fees | — | your figure |
| Error surface | One handler, checked at source | Two handlers, two chances |
| Per-unit total | your figure | your figure |
The gap widens with unit count and shrinks with unit value — which is why the answer is a calculation, not a doctrine.
Where china-side prep wins and loses
Wins: high-unit-count consumer goods, stable SKUs, anything where the marketplace's prep rules are known before loading — goods are checked against your written specification before anything loads, and arrive at the fulfillment center ready to receive. Loses: SKUs needing destination-side kitting with domestic components, or programs still changing packaging monthly.
Common questions
Routinely — compliance is about labels, prep and carton rules, not geography. The rules are written into the specification before production, not discovered at receiving.
You are — Amazon never is. EIN/EORI and market registrations sit with you; we handle the freight and documents against them.
Destination-side by nature — a fair line for the US column if removals are material in your category.