The sourcing decisions in China that quietly turn expensive

Problems in China sourcing don’t usually begin with a bad supplier or a failed shipment. More often, they start earlier — at the moment a working decision stops being reviewed.

A supplier chosen for your first small order. Payment terms agreed back when there was no track record to lean on. A QC routine shaped around an older product line. A freight setup locked in when your volumes looked nothing like they do now. None of these were mistakes. Each one made sense for the situation it was made in.

The trouble is that the situation keeps changing while the decision stays put. The factory that handled 500 units comfortably starts slipping at 5,000. The price that looked sharp at quotation quietly loses its edge once packaging, inland transport, inspection, and real lead times are added back in. Nobody chose wrong. The decision simply stopped being questioned, and the purchasing process kept adapting around it.

That’s how it builds up. A workaround here. An extra approval there. A bit more safety stock to cover a supplier nobody fully trusts anymore. Each step solves an immediate problem. None of them was meant to be permanent. Together they form a sourcing model that nobody actually designed.

This is why scaling up so often creates pressure before it creates margin — and why a sudden disruption exposes weak points that felt invisible while orders were steady. The disruption didn’t create the weakness. It was already there. The calm conditions were just hiding it.

The opposite case, from one of my shipments, shows what the same arithmetic looks like when a decision is reviewed at the moment it is made.

A project in West Africa needed float glass in 3300 × 2440 mm panes, 6 mm thick. Glass manufacturers local to the project could not produce that specification and size, so the panes came from China: thirty sheets from a supplier in Hebei, $960 EXW.

Moving the glass cost more than the glass itself. Road transport across the country was ruled out as a risk for panes that size. Instead, a container came to the supplier in Hebei, the glass was secured and loaded inside it, and the same container travelled through the port of Tianjin and down the coast by sea, straight to the warehouse in Guangzhou: $829. Unloading it there took special forklift work: another $186. That is $1,015 of handling against $960 of material — before loading into the export container, where the same forklift and purpose-built beams and fixings inside the container made loading the whole shipment cost more than usual.

Nobody missed anything here. The client knew these numbers before the purchase: the project needed exactly that glass, and no local option could replace it. When the task leaves no room for compromise, handling becomes part of the price — visible, agreed, paid without surprises. The quiet costs never come from decisions like this one. They come from the cheap-looking ones that stopped being reviewed.

So “finding a supplier” is the smallest part of sourcing in China. The harder, more valuable work is going back to the parts that still look fine and asking the uncomfortable question: does this still fit the project as it stands today, or only the project it was set up for?