In Hai Hoa village, Quang Ninh Province in northern Vietnam, an effort that rewrites one of the conventions of shrimp farming is producing results. The "Cam Pha High-Tech Shrimp Farming Cooperative (Hop tac xa Nuoi tom cong nghe cao Cam Pha)," launched by Dang Ba Manh, who spent 30 years in the construction and real-estate industry, has made year-round what used to be a once- or twice-a-year harvest, using a tent-type closed farming system. In the first half of 2026 alone it landed more than 300 tonnes of shrimp, a seafood-specialist outlet reports. For seafood buyers who import shrimp to Japan and for people engaged in domestic aquaculture, this is more than just a success story from abroad. It touches the root of procurement: where to draw "always-available, stable, traceable" shrimp from.
1. What happened: a once- or twice-a-year harvest turned "year-round"
According to the original article, the cooperative led by Manh adopts "three-stage closed farming," moving the shrimp into successive ponds as they grow. This built a system that can ship continuously throughout the year, unbound by seasons (lien tuc quanh nam). Conventional shrimp farming in northern Vietnam generally harvested once or twice a year due to constraints such as water temperature. Turning that into "year-round" is the starting point this time.
The scale is concrete too. One market-size pond (1,000 square meters in area) yields over 30 tonnes per farming cycle, and the cooperative's total harvest in the first half of 2026 is said to exceed 300 tonnes. The shipping size is around 30 shrimp per kg, reached on a cycle of roughly 90 days from stocking the fry, it is reported.
2. Background: Quang Ninh's aquaculture and the wall of the 2024 typhoon
Quang Ninh Province is a coastal region that encompasses Ha Long Bay, a land where aquaculture has always been active. At the same time, the risks from the natural environment are not small. The original article notes that Typhoon Yagi (Typhoon No. 3 in Vietnam), which struck in 2024, brought considerable damage to aquaculture in this region, and that the farm also experienced a total loss from disease.
What is worth noting is that it did not end the damage at "so aquaculture is hard." Taking the damage as his cue, Manh redesigned the system itself, steering away from the conventional type that relies on outdoor ponds toward a closed type covered by a tent that manages water quality, temperature, and density. It is the idea of having the facility absorb the swings of the climate. Answering the threat of nature with design rather than lament — this is the core of how to read this case.
What is "three-stage closed farming"?
Put simply, the mechanism is "move them to a wider pond as they grow." At each growth stage the shrimp are moved to a pond with progressively lower stocking density. The aim is to manage them intensively at first in a small, high-density environment, then move them to roomier ponds as they grow larger, keeping both growth speed and survival rate high. Enclosing them in a tent suppresses the effects of outside air, rainfall, and seasonal variation so the operation can keep running year-round — this combination of "closed environment x staged transfer" is explained as the technical core that supports making it year-round.
3. Seen in the data: the difference from the conventional type
We line up the figures confirmed in the original article against the image of the conventional type. Note as a premise that the numbers are on a self-reported basis from the cooperative and are not third-party-verified values.
| Item | Conventional type (general image) | The Cam Pha cooperative's method |
|---|---|---|
| Harvests per year | Once or twice a year | Year-round (continuous shipping) |
| Environmental management | Outdoor ponds, season-dependent | Tent-type closed, staged transfer |
| Per pond (1,000 sq m) | — (no published figure) | Over 30 tonnes per cycle |
| Total harvest in the first half | — | Over 300 tonnes (first half of 2026) |
| Shipping size / days | — | Around 30 shrimp per kg / about 90 days |
What counts in the table is the "harvests per year" row. Once or twice a year turning into year-round means that, from the buyer's view, the possibility opens up of drawing supply "year-round as needed" rather than "in bulk at a fixed time." In the next section we dig into how this bounces back on Japan's procurement.
4. Reactions from those involved (paraphrased, anonymized)
We gather the voices around the case, paraphrased within a range that does not identify individuals.
The local workers' perspective. The cooperative employs roughly 25 to 30 local residents, and monthly incomes are said to be 12 million to 40 million dong (roughly 70,000 to 230,000 yen equivalent; the gap appears to depend on duties and roles). A welcoming of stable employment comes through: "a place where you can work all year round, not seasonal work, has been created."
As for the perspective of fellow farmers, one can imagine a view that treats technical investment as risk management: "precisely because we have the experience of losing everything to typhoons and disease, we understand well the point of enclosing and managing rather than farming outdoors."
And thinking from the buyer's side, a northern supply source that can ship year-round makes it easier to draw up an annual procurement plan. Rather than flashy yields, it is the quality of being "uninterrupted" that tends to become valuable to the procurement side.
5. Implications for Japanese companies: what changes in shrimp procurement
From here on is our own analysis. We see three major points this case presses onto Japan's food makers and seafood buyers.
The first is Supply stability. Japan's shrimp imports are spread across multiple countries such as Vietnam and India, yet they have been buffeted every year by swings in price and volume driven by season and weather. An increase in supply sources that can ship continuously year-round changes the premises of price negotiation and inventory planning. It means room emerges to shift from the premise of "buy in bulk in season and hold it frozen" toward a design of "draw the required volume in a leveled way."
The second is traceability and consistency of quality. The fact that water quality, density, and size are managed in a closed type means, conversely, that the rearing conditions for each lot are easier to leave on record. Against the demand of "where and how was it raised?" that Japanese retail and food service strengthen year by year, it can be a material easier to explain than one dependent on the outdoors and the wild. Whether actual management records exist and how precise they are needs on-site confirmation, but structurally it is an aquaculture that lends itself to telling a history.
The third is the very way of viewing supply sources. The lead this time was not a large corporation but a cooperative led by a single producer who switched from another industry. When Japanese buyers choose a production area, it can be read as a time that has come to add not just "scale" but "design capability against climate risk" to the evaluation axis. An operation that rebuilt itself after experiencing total loss in a typhoon-prone area may in fact be a candidate that is strong in emergencies.
6. Ripple effect on the industry: northern aquaculture becoming a "contest of design"
Whether this single example works widely is not yet clear. The tent-type closed system carries heavy capital investment and is not something anyone can imitate right away. Still, the direction is suggestive. This cooperative embodies the way shrimp farming in northern Vietnam is shifting from a stage of competing on "given conditions" such as location and weather to a stage of building stability through the "design" of facilities and operations.
If similar closed types increase around Quang Ninh Province, there is a possibility that a new image of a production area — "northern Vietnam = an option for year-round, stable supply" — will take shape for Japan. The author's view is that, in a context separate from the large production areas of the south, value emerges in incorporating it into the procurement portfolio.
7. Practical information: what the Japanese side can do now
To put the conclusion first, if you are to act at this stage, it is "observation and designing your inquiries."
First, put the move toward year-round supply of northern farmed shrimp on your watch list as a production-area category. Second, prepare, as questions to ask at the early stage of an inquiry, "is leveled supply possible throughout the year?" and "can you present rearing and water-quality records?" to importing trading houses and local partners. Third, always take primary confirmation before negotiations of self-reported figures such as yields and monthly incomes — the numbers in this article are also on a cooperative-announced basis, and making them the grounds for a procurement decision presupposes on-site verification.
8. Summary
A single producer in Hai Hoa village, Quang Ninh Province, overcame the wall of typhoon damage with technology, made shrimp harvesting year-round, and achieved over 300 tonnes in the first half — the essence of this case lies less in the yield figure itself than in the point that "uninterrupted supply was built by design." The implications for Japan's seafood procurement are three: stable supply, traceability, and the production-area evaluation axis. It is worth remembering as a small precedent for re-examining production areas by design capability rather than scale.
Frequently asked questions
What is "three-stage closed farming"?
It is a method of moving shrimp in turn into ponds of differing stocking density according to their growth stage, enclosed in a tent to manage water quality and temperature. Its feature is said to be the ability to ship continuously throughout the year in a closed environment.
How large was the harvest in the first half of 2026?
The original article reports that the Cam Pha High-Tech Shrimp Farming Cooperative exceeded 300 tonnes in total. Per market-size pond (1,000 sq m), it is said to be over 30 tonnes per farming cycle.
How did the damage from Typhoon Yagi have an effect?
It is said to have taken considerable damage in Typhoon Yagi in 2024 and to have also experienced a total loss from disease. This became the cue to redesign the system from the outdoor type to the closed type, leading to today's year-round farming.
What does it mean for Japanese buyers?
It can be cited that the options for northern production that can supply stably year-round increase, that rearing conditions are easier to record and traceability easier to explain, and that one gains the perspective of evaluating a production area not only by "scale" but by "design capability against climate risk."
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[Reference source]Nuoi tom kieu moi, thu hoach quanh nam tai Quang Ninh (Thuy san Viet Nam, around June 23, 2026)
