For the last three years, the answer to every supply chain risk question was the same:
"We're diversifying into Vietnam."
The Hormuz closure is the first real stress test of that strategy. And for a lot of brands, the results are not what they expected.
The logic was sound on paper. China tariffs increasing — move some production to Vietnam. UFLPA enforcement tightening — put more distance between your supply chain and Xinjiang. Geopolitical risk rising — don't have all your manufacturing in one country.
Vietnam was the obvious answer. Lower labor costs. Trade agreement advantages. Growing factory base. The narrative wrote itself.
What most brands actually built, though, wasn't diversification. It was relocation.
They moved assembly. They didn't move the supply chain.
Here's what a typical "diversified into Vietnam" operation actually looks like:
Vietnamese factory doing final assembly and some sub-assembly. Key components — motors, PCBs, battery cells, specialty materials — still sourced from China. Raw materials still predominantly Chinese origin. Sometimes the same Chinese factory group owns or supplies the Vietnamese operation.
On paper: Vietnam origin, diversified risk, tariff advantage.
In reality: Chinese supply chain with a Vietnamese finishing step.
The Hormuz closure exposed this in two ways.
First, energy costs. Vietnam imports significant volumes of oil. Energy costs moved. Factory margins moved with them. The same cost-pressure dynamic playing out in Chinese factories is playing out in Vietnamese factories — with one added problem. Vietnamese factories, on average, have thinner operational buffers than their Chinese counterparts. Less cash reserve. Less supplier network depth. Less ability to absorb a sudden cost shock.
Second, component supply. When your Vietnamese factory's Chinese component suppliers get squeezed by energy costs, the squeeze travels up the chain. Lead times extend. Prices increase. Quality shortcuts appear. Your Vietnamese assembly operation is only as stable as its Chinese supply base — and right now, that supply base is under pressure.
If your diversification strategy didn't include locking the component supply chain, you didn't diversify. You just added a border crossing.
Genuine multi-hub manufacturing — the kind that actually reduces risk — looks different from relocation.
It means production capability in multiple countries with independent supply chains. Not the same supply chain running through multiple flags. It means being able to shift volume between hubs when one gets squeezed. Not just having one hub with a backup address.
It means knowing, precisely, what percentage of your product's value originates in each country. Not estimating. Knowing — because you've mapped it, verified it, and documented it in a way that holds up to scrutiny.
Most brands don't have this. They have a Vietnamese factory they've visited twice and a Chinese factory they've worked with for six years. When pressure hits both simultaneously — which is exactly what a global energy shock does — the "diversified" structure doesn't behave the way it was supposed to.
The brands that are holding up well right now have a few things in common.
They know their actual component origin percentages. They mapped their supply chain properly — not just the factory level, but the sub-supplier level. When the Hormuz news broke, they could answer the question: how much of my product value is exposed to Gulf energy pricing, directly or indirectly?
They have verified production capacity in more than one hub. Not theoretical capacity — actual relationships with actual factories that have run their product before. When one hub gets squeezed, they can move volume. The threat is credible.
They have structural controls in both locations. Payment gates, inspection checkpoints, approved vendor lists. The controls don't exist only in the hub they've been using longest. They exist wherever production runs.
The brands that are struggling have a Vietnam factory on their deck and a Chinese supply chain underneath it that they've never fully mapped.
If Hormuz resolved tomorrow — which it won't, but hypothetically — would your Vietnam operation still be your risk mitigation strategy?
Or has the last two weeks shown you that what you built is a tariff play dressed up as a supply chain strategy?
This is worth being honest about. Because the next disruption is coming. It always is. And the structure you have either holds under pressure or it doesn't.
Diversification that only works when conditions are stable isn't diversification. It's wishful thinking with a Vietnamese business registration.
Independent component supply chains. Your Vietnamese factory should have qualified local or regional suppliers for key components — not just Chinese sources with Vietnamese delivery addresses. This takes time to build. Start now.
Verified production capacity, not assumed capacity. Have you run a full production order in Vietnam at scale? Have you stress-tested the factory's ability to handle a volume surge if China gets squeezed? If not, your backup isn't real.
Origin math you can prove. For every SKU, know your Chinese content percentage by FOB value. Know what has to change for Vietnamese origin to hold under CBP scrutiny. That number matters — not just for compliance, but for understanding what your diversification is actually worth.
Supplier mapping at both locations. The same structural mapping you'd do in China, done in Vietnam. Who's actually making your product, what processes happen where, who supplies what. The same risks exist. They're just less visible because the relationship is newer.
Q: Does moving final assembly to Vietnam automatically give me Vietnamese country of origin? No. Country of origin depends on substantial transformation — whether the product underwent a meaningful change in character, name, or use in Vietnam. If you're assembling Chinese components with minimal value-add in Vietnam, CBP may still determine Chinese origin. The threshold varies by product category and HTS code. It requires an actual origin analysis, not an assumption.
Q: How exposed is Vietnam to the Hormuz closure specifically? Significantly. Vietnam imports around 70% of its petroleum needs. Energy cost increases flow through to factory electricity pricing, logistics costs, and raw material inputs. Vietnamese factories are also generally more dependent on Chinese component supply chains than factories in more developed manufacturing hubs, which creates a secondary exposure channel.
Q: What's the fastest way to assess whether my Vietnam diversification is real? Pull your BOM for your top three Vietnamese-manufactured SKUs. Calculate Chinese content as a percentage of FOB value. Then ask: if I had to stop all Chinese component sourcing tomorrow, could my Vietnamese factory still run? The answer tells you exactly how diversified you actually are.
Q: Should I be looking at other hubs — India, Indonesia — given what's happening? Potentially, depending on your product category. India and Indonesia have different energy exposure profiles and different component supply chain dependencies. But the same principle applies: moving assembly without moving the supply chain doesn't create real diversification. The hub decision matters less than the depth of the structure you build in each one.