Nguyen Ho Nguyen, president of Lenger Seafoods Vietnam (Nam Dinh province), a major processor of Vietnamese bivalves (clams), revealed a change occurring in overseas buyers' ordering behavior. Customers who had locked up volume under long-term contracts are switching to a method of placing small orders in small increments to match market movements, he said (reported 1 July 2026). In a structure where rising raw-material costs are passed on to export prices and buyers have become cautious about ordering, it is a move that connects directly to how Japanese buyers who handle shellfish read their procurement.
From "bulk buying" to "wait-and-see small orders"
What President Nguyen indicated is the reality that overseas customers who had secured lots under long-term contracts are shifting to a form of ordering small lots each time while watching demand. Rather than fixing the year's required volume in advance by contract, they add on after checking retail sales and the market. It can be called a shift to a cautious procurement style in which the buyer does not hold inventory risk in hand.
Behind it is a rise in prices. Securing clam seed has become unstable, and the increased cost of aquaculture and processing rides on the export price. In addition, quality requirements grow stricter year by year, and climate change and environmental changes in the waters also shake the stable sourcing of raw material. From the buyer's standpoint, drawing only what it needs in small increments is easier to read than holding a now-expensive product in bulk over the long term. On the seller's side, too, Lenger is flexibly reorganizing supply to match.
The bivalve market in numbers: Spain and the US lead
While ordering grows cautious, the market itself is not shrinking. In January-April 2026, Vietnam's bivalve export value was about US$38 million (about 6.1 billion yen, at a conversion of 1 dollar = about 160 yen), up 2% year on year. What pulled the growth were Spain and the US. Spain was about US$10 million, up 29% year on year, and the US, at about US$6 million, surged 49%. With the traditional mainstay Portugal edging down, one can see that the center of gravity of demand is moving.
| Market | January-April 2026 export value | Year on year |
|---|---|---|
| Spain | About US$10 million | +29% |
| Italy | About US$9 million | +5% |
| US | About US$6 million | +49% |
| Portugal | About US$5 million | -2% |
| Total (all bivalves) | About US$38 million | +2% |
The EU is still the largest market for Vietnamese bivalves, underpinned by the tariff preference under the EVFTA (EU-Vietnam Free Trade Agreement). The EU's bivalve import value reached about EUR657 million over 11 months of 2025, up 9% by value and 7% by volume. The market is on an expanding trend, and within it Vietnamese origin's presence is maintained. The US has strong demand for large sizes and is positioned as an emerging growth margin where supply cannot keep up.
Why the "shift to small orders" happens
The seemingly incongruous move of ordering turning cautious even as demand grows happens more readily the more prices rise. A long-term contract can fix volume and price in advance, but on the flip side the buyer tends to bear the disadvantage when the market fluctuates. Now, when raw-material costs are hard to read, buyers wanting to avoid buying at a high choose to loosen the contract's bind and move nimbly in small lots.
This is not a matter limited to shellfish. For Vietnamese fruit and seafood, scenes where the retail price moves at several times the origin market price even when it is at rock bottom have been reported repeatedly. The larger an item's market swing, the more buyers dislike the risk of holding inventory and lean toward split ordering. an article dealing with the Japanese sourcing opportunity that oversupply creates As touched on in it, procurement in a period of price volatility has profit governed by the design of "when and how much to draw." The same dynamics are at work with bivalves.
Implications for Japanese shellfish buyers
For Japanese food buyers, this move carries two meanings. One is that the supply side is putting in place a system to accommodate small, split orders. Even without locking up lots in an annual contract, the room to draw the needed volume each time to match demand is widening. For importers who want to start trade from a small volume and assess quality and logistics, it is a scene where the entry hurdle lowers.
The other is the need to factor in the premise that prices are on a rising trend. The instability of clam seed and the tightening of quality requirements are expected to continue for a while, and the phases where you can bulk-buy cheaply are limited. Japan has strict hygiene and origin requirements for trade with Vietnam in bivalves including the shell, and choosing a processing operator that has organized traceability leads to procurement stability. A major processor that is lifting quality through technology investment, like Lenger, is likely to be a candidate trading partner that clears the requirements.
For Vietnamese seafood, phases where the market's center of gravity moves, such as a shift to the US and China, are continuing. an article dealing with the China shift in seafood and Japanese procurement Read together with it, the bivalves' shift to small orders comes into view not as a one-off phenomenon but as part of a change in the sourcing structure of Vietnamese fisheries as a whole.
Ripple to the market: supply flexibility becomes competitiveness
The more buyers move to small, nimble ordering, the more the supply side is asked for "flexibility to put out goods to match the waves of demand." An operator that can adjust the processing volume while watching demand gains an advantage over the conventional type that produces in bulk and waits with inventory. Whether this flexibility can be secured through technology investment and quality control divides the competitiveness of bivalve exports going forward. Whether you can insert the needed volume at the needed time into the growing markets of Spain, Italy and the US. The response that Vietnam's major processors show is, as a concrete example of how to run a supply chain in a period of rising prices, instructive for Japanese procurement staff too.
Sources
Nong nghiep Moi truong: Overseas buyers shift to small, split orders of clams
Vietnam+: Ample room to grow and develop Vietnamese clam exports
