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Appendix ZNew in edition 1.1

Z. Aquafeed, marine ingredients and carbon feedstocks to 2050

The evidence behind the aquafeed and carbon-feedstock parts of chapters 16 and 17: fisheries targets, three aquaculture paths to 2050, trash-fish replacement, marine ingredients and omega-3, protein crops and climate, and whether residues, side streams and one-carbon feedstocks could supply the 1.32 Mt of glucose that the stretch scenario needs in 2050. All 2040 and 2050 values are our what-if estimates, not forecasts.

28 min readWhat the tags mean
On this page
  1. Z.1 Official targets and published projections
  2. Z.2 Our three aquaculture paths
  3. Z.3 Trash fish: use, supply cuts and replacement
  4. Z.4 Marine finfish and offshore cages
  5. Z.5 World marine ingredients to 2035 and 2050
  6. Z.6 Omega-3: needs, supply gap and alternatives
  7. Z.7 Protein crops and biotech rules
  8. Z.8 Climate and aquaculture geography
  9. Z.9 The S-ALT glucose need and competing uses
  10. Z.10 Rice straw
  11. Z.11 Cassava pulp, liquid side streams, food waste and manure biogas
  12. Z.12 Rules as a ceiling
  13. Z.13 Cases A, B and C for 2040 and 2050
  14. Z.14 Land: released rice land and protein per hectare
  15. Z.15 Gaps, disagreements and open questions
  16. Data files

What this appendix contains. The evidence and calculations behind Protein balance 2050 (sections 17.5 and 17.6) and Frontier technology (section 16.5). Part 1 (Z.1 to Z.8) covers targets, our aquaculture paths to 2050, trash fish, offshore cages, marine ingredients, omega-3, protein crops and climate. Part 2 (Z.9 to Z.14) asks whether residues, side streams and one-carbon feedstocks could supply the glucose that the S-ALT scenario needs, and what released rice land could grow. Technology status and costs of cellulosic sugar and one-carbon routes are in V. Frontier technology; the balance model is in W. Balance model.

How to use it. Feed manufacturers and investors: Z.3, Z.4 and Z.6. Policy makers: Z.1, Z.3, Z.10 and Z.12. Founders choosing a fermentation site: Z.9, Z.11 and Z.13. Signposts are in X. Drivers and signals.


Part 1. Aquafeed and marine ingredients

Z.1 Official targets and published projections

Source2030Beyond 2030Type and evidence
Decision 339/QD-TTg (2021), fisheries strategyAquaculture 7.0 Mt; capture 2.8 Mt2045: "top three" producer; no volumeOfficial target 3,4
Decision 1664/QD-TTg (2021), marine aquaculture1.45 Mt on 300,000 ha; offshore 340 kt2045: over 25% of fisheries outputOfficial target 5
Decision 389/QD-TTg (2024), fisheries resourcesAt most about 83,600 vessels; trawlers 10%2050: qualitative onlyOfficial target 6
Decision 231/QD-TTg (2025), Khanh Hoa pilot8,700 t on 440 ha by 2029noneOfficial target 7
OECD-FAO Agricultural Outlook 2026-2035Aquaculture 6.12 Mt; implied capture 3.50 Mt2035: aquaculture 6.83 MtPublished model 8
Fish to 2050 in the ASEAN region (IMPACT)ASEAN aquaculture 24.8 Mt2050: 27.4 Mt; no Vietnam figurePublished model 9
FAO SOFIA 2026none2034: 214 Mt of aquatic animals, worldPublished projection 10
  • No Vietnam-specific projection beyond 2035. We checked Decisions 339, 1664 and 389 and Fish to 2050 and found no published volume after 2035 and no national species-level target for 2030 4,9 . The only later anchor is the 2045 vision that marine aquaculture should supply "trên 25% tổng sản lượng" (over 25% of total output), read as total fisheries output 5 .
  • The published model sits below the target and ignores the fleet cut. OECD-FAO holds capture near 3.5 Mt in 2030, 25% above the 2.8 Mt target (our subtraction of aquaculture from total fish) 8,3 . Its 2025 base (5.69 Mt) is below the NSO figure of 6.12 Mt 11 . We show both and do not average them.
  • Marine aquaculture is behind plan: about 730 kt in 2021 12 against 850 kt targeted for 2025; we found no 2025 outturn .
  • Lobster value is ahead of the volume plan. Lobster exports to China were USD 845 M in 2025 and over USD 506 M in January to May 2026 (+44.3%) 13, against a 2030 output target of 5 kt .
  • Growth after 2030 is the largest open number. IMPACT implies ASEAN aquaculture growth of about 0.5% a year from 2030 to 2050 (our calculation from 9) , while Vietnamese aquaculture grew 5.1% in 2025 and 5.7% in the first half of 2026 11,14 .

Z.2 Our three aquaculture paths

PathTo 2035After 2035Marine finfish, 2050Relation to the balance model
AQ-LOWOECD-FAO growthFlat180 ktIts low aquaculture sensitivity
AQ-BASEOECD-FAO growth+1% a year450 ktThe S-BASE index plus faster marine finfish
AQ-HIGH7.0 Mt target met in 2030+2% a year1,000 ktAbove S-HIGH (9.0 Mt in 2050; balance_outputs.csv, BLO-0473)

All paths: . Marine finfish is carved out of "other fish" from an assumed 80 kt in 2025.

Output by species group, kt live weight. 2025 measured 11 ; later years our calculation, aqf_calc.py .

Species group2025AQ-BASE 2030AQ-BASE 2040AQ-BASE 2050AQ-LOW 2050AQ-HIGH 2050
Pangasius1,9392,0862,4442,7002,3263,297
Whiteleg shrimp9941,0701,2541,3851,1931,691
Black tiger and other crustaceans387417488539465659
Other fish2,0162,1692,5422,8082,4183,429
Marine finfish801503004501801,000
Unfed (molluscs, seaweed, other)7007538839758401,191
Total6,1176,6447,9118,8577,42111,266

Feed and protein needs (our calculation, aqf_calc.py)

Path and yearAquafeed, MtFeed CP, Mt (industry scale)Shrimp plus marine feed, Mt
All paths, 20256.452.00 (1.34)1.49
AQ-LOW 2030 / 2040 / 20507.02 / 7.99 / 8.012.18 / 2.49 / 2.50 (1.68)1.63 / 1.88 / 1.91
AQ-BASE 2030 / 2040 / 20507.06 / 8.64 / 9.722.20 / 2.73 / 3.10 (2.07)1.67 / 2.22 / 2.64
AQ-HIGH 2030 / 2040 / 20507.57 / 9.89 / 12.532.36 / 3.16 / 4.08 (2.73)1.83 / 2.78 / 3.89

Coefficients (our assumptions). FCR on pellets 1.5 for all groups except whiteleg shrimp (1.3), improving 0.3% a year. Dietary CP: pangasius 27%, shrimp 40%, other fish 30%, marine finfish 45%; the shrimp and marine values sit within the 40 to 43% of standard shrimp feeds 15 and the 40 to 50% of marine feeds 16 . Share of output on pellets from 2025 to 2050: pangasius and whiteleg 100%; other shrimp 30 to 50%; other fish 68 to 85%; marine finfish 15% rising to 60% (LOW), 95% (BASE) or 100% (HIGH).

How AQ-BASE relates to S-BASE. AQ-BASE gives 8.86 Mt of aquaculture and 9.72 Mt of aquafeed in 2050, against 8.52 Mt and 9.24 Mt in S-BASE (balance_outputs.csv, BLO-0223, BLO-0235). The gap is only the faster marine finfish path; aquaculture growth after 2035 moves the 2050 soybean-meal result by about 1 Mt at most (W. Balance model) . Across our paths, 2050 aquafeed protein spans 1.6 Mt (2.5 to 4.1 Mt of CP): growth after 2030 matters more than formulation.

Z.3 Trash fish: use, supply cuts and replacement

Cá tạp (trash fish: low-value fish, crustaceans and molluscs, mostly trawl by-catch).

ItemValueEvidence
Trash fish landed, 20010.93 Mt, 36% of marine landings; two thirds from the Gulf of Thailand; up to 80% of trawl catch in former Kien Giang (now An Giang)17
Fed directly to aquaculture, 20020.18 to 0.32 Mt (pangasius, shrimp, grouper, lobster); about 185 kt to fish powder and 80 kt to fishmeal17
Trawlers16,400 (2008) to 20,340 (2016)18
Fishmeal factories, 201796, with 675 kt of documented capacity; 81 name "sea fish" as main raw material18
South-central mariculture, 2021About 90% of stakeholders fed trash fish as main feed; 9.41% used pellets; lobster FCR 35 to 4019
Other usersAll southern mud-crab farmers; cobia, grouper and snapper cages20,21

Pangasius and whiteleg shrimp have since moved to pellets, and up to 0.3 Mt of snakehead pellets in 2025 suggests most snakehead has too 2 .

The capture plan. Decision 389 caps trawlers at about 8,360 by 2030, about 59% fewer than in 2016 (our calculation from 6,18) , and capture is to fall from 3.83 Mt (2025) 11 to 2.8 Mt (2030) 3 . Trawl catch is the main source of trash fish, so low-value fish for direct feeding and for whole-fish meal should fall sharply by 2030 . Decision 339 orders "thức ăn công nghiệp thay thế sử dụng cá tạp" (industrial feed to replace trash fish) and Decision 1664 orders feed zones next to sea farms, but neither sets a volume or date 3,5 .

Direct trash-fish feeding in 2025 (our calculation, aqf_calc.py)

GroupOutput, kt (low / central / high)Not on pelletsWet FCRTrash fish, ktPellets to replace it, kt
Marine finfish60 / 80 / 12080 to 90%5 to 8240 / 408 / 86472 / 102 / 162
Lobster3 / 4 / 5100%20 to 4060 / 112 / 2009 / 12 / 15
Mud crab and other crustaceans20 / 40 / 6080 to 100%4 to 664 / 180 / 36032 / 72 / 120
Freshwater carnivores10 / 16 / 30100%4 to 640 / 80 / 18015 / 24 / 45
Total404 / 780 / 1,604128 / 210 / 342

The central case is about 20% of 2025 capture (10 to 42%) and carries about 133 kt of protein at 17% CP. Pellets that replace it need only about 88 kt of CP (54 to 144 kt), because they convert about four times better. The 2002 figure is not comparable: the species mix has changed.

Extra formulated feed over 2025, from marine finfish growth plus conversion of the other trash-fish species (15, 30 and 50% converted by 2030 in LOW, BASE and HIGH; 40, 70 and 90% by 2040; 60, 90 and 100% by 2050; our calculation, aqf_calc.py)

PathExtra pellets 2030 / 2040 / 2050, ktExtra CP 2040 / 2050, ktExtra fishmeal 2030 / 2040 / 2050, ktShare of aquafeed 2040 / 2050
AQ-LOW40 / 131 / 21056 / 907 / 18 / 251.6% / 2.6%
AQ-BASE106 / 421 / 712181 / 30619 / 59 / 854.9% / 7.3%
AQ-HIGH192 / 827 / 1,557356 / 67034 / 116 / 1878.4% / 12.4%

Fishmeal is at 20% of marine pellets in 2025, falling to 12% by 2050 (the hypothesis in Feed and aquafeed market, H6, is 15 to 30%). Reading: to 2050 the transition is a small share of aquafeed tonnage but a large share of the premium segment, where a novel protein or oil competes with fishmeal and fish oil, not soybean meal .

Z.4 Marine finfish and offshore cages

Decision 1664 targets for fed species 5 (official target): marine finfish 120 kt in 2025 and 200 kt in 2030 (of which offshore 60 and 120 kt); lobster 3 and 5 kt; other crustaceans 67 and 95 kt; all fed species 190 and 300 kt (our sum). Offshore (nuôi biển xa bờ: offshore sea farming) is 340 kt of all species on 30,000 ha by 2030. The offshore provinces are, on the current map, Quang Ninh, Hai Phong, Quang Ngai, Dak Lak (former Phu Yen), Khanh Hoa (including former Ninh Thuan), Lam Dong (former Binh Thuan), Ho Chi Minh City (former Ba Ria-Vung Tau), Ca Mau and An Giang (former Kien Giang).

The Khanh Hoa pilot. Decision 231/QD-TTg (January 2025) allows 240 ha at 0 to 3 nautical miles (3,600 t) and 200 ha at 3 to 6 nautical miles (5,100 t) to 2029 in HDPE cages, phased 30 ha (2025), 100 ha (2026 to 2027) and 110 ha (2028 to 2029) 7 . The phases add up to 240 ha; we could not see how the outer 200 ha is phased. Pilot HDPE farms reported profits of 172% (cobia), 112% (lobster) and 131.4% (grouper) of same-size wooden-cage farms (provincial claim) 7 . Storm No. 12 (2017) destroyed wooden cages there 23, and HDPE cages hold up to 300 t of cobia each 21 .

Feed capacity. Marine-fish feed capacity was 40,000 to 50,000 t a year in 2022, over 80% foreign-owned 22 . De Heus opened a marine and cold-water fish feed mill in Vinh Long in July 2026, 168,000 t a year by the company's figure 16 . We found no national count or target for recirculating (RAS) farms.

Where protein and omega-3 concentrate (marine finfish pellets; our calculation, aqf_calc.py)

Path and yearPellets, kt (share of aquafeed)CP, kt (share of aquafeed CP)Fishmeal, ktEPA plus DHA, kt (share of need)
202518 (0.3%)8 (0.4%)40.2 (2%)
AQ-BASE 203089 (1.3%)40 (1.8%)160.9 (7%)
AQ-BASE 2040344 (4.0%)155 (5.7%)483.4 (19%)
AQ-BASE 2050595 (6.1%)268 (8.7%)715.9 (28%)
AQ-HIGH 20501,391 (11.1%)626 (15.3%)16713.9 (42%)

Offshore growth is pellet growth, because offshore cages cannot use trash fish at scale. The 120 kt offshore target for 2030 alone would need about 177 kt of pellets (120 kt x 1.5 x 0.985), twice AQ-BASE's 2030 estimate (our calculation) .

Z.5 World marine ingredients to 2035 and 2050

Indicator20242025203020352050 (our extension)Evidence
World fishmeal, Mt5.675.365.986.276.0 to 7.68 ; 2050
World fish oil, Mt1.401.351.441.491.4 to 1.7As above
By-product share of fishmeal34%42 to 54%24 ; 2050
By-product share of fish oil54%Rising24
  • OECD-FAO builds El Niño years into 2027 and 2031, with Peru's fishmeal at 0.72 and 0.53 Mt against about 1.1 Mt in normal years 8 .
  • 2026 runs below the model. Peru's first 2026 season landed about 25% of a 1.9 Mt quota, and world fishmeal output fell 26% year on year in January to April 2026 25,26 . NOAA gives a greater than 90% chance of a very strong El Niño in winter 2026 to 2027 27 .
  • Our 2050 extension: whole-fish meal flat or down at 3.2 to 3.8 Mt, plus by-product meal of 2.8 to 3.8 Mt, up from about 1.9 Mt in 2024 (aqf_calc.py) . Later this century, extreme El Niño events about double in frequency under high emissions in older models 28, a finding contested for the newest ones; the IPCC finds ENSO rainfall variability very likely amplified in 2050 to 2100 29 . Almost 12 Mt of processing by-products are still not collected, most of the potential in Asia 24 .

Vietnam's own supply

Item2025203020352050Evidence
Fishmeal production, kt325389420Pangasius-derived alone 270 / 314 / 383 (LOW / BASE / HIGH)8 ; 2050
Fishmeal feed use, kt221309339151 to 393As above
Fishmeal exports / imports, kt260 / 156248 / 168249 / 168Net exporter by volume8
Fish oil production, kt190205219Pangasius oil 258 / 300 / 366As fishmeal production
EPA plus DHA in that oil, kt0.4 to 0.60.5 to 1.130 and our calculation
  • Pangasius off-cuts are the base. Pangasius supplied 12% of the world's by-product fishmeal and 29% of its by-product fish oil in 2024 24 : about 225 kt of meal (5.52 Mt x 34% x 12%) and 215 kt of oil (1.375 Mt x 54% x 29%), or 0.116 t of meal and 0.111 t of oil per t of fish (our calculation). By-products are 62 to 67% of the whole fish 31 .
  • The 2050 fishmeal-demand range runs from 151 kt (S-EFF, S-ALT) and 253 kt (S-BASE) to 393 kt if the OECD-FAO 2035 value grows 1% a year (our calculation) .
  • Reading. Vietnam can plausibly stay self-sufficient in fishmeal volume to 2050 through by-products, but stays short of high-grade (65% CP) meal for shrimp and marine feeds, which it imports today (Feed and aquafeed market, H5) .

Z.6 Omega-3: needs, supply gap and alternatives

EPA plus DHA need in aquafeed, kt a year (central values; our calculation, aqf_calc.py)

Species group (need, % of diet)2025AQ-BASE 2030AQ-BASE 2040AQ-BASE 2050AQ-HIGH 2050
Pangasius (0.05)1.51.51.81.92.3
Whiteleg shrimp (0.5)6.56.87.88.310.2
Other shrimp and crustaceans (0.5)0.91.11.61.92.3
Other fish (0.1)2.12.32.93.34.1
Marine finfish (1.0)0.20.93.45.913.9
Total (range)11.0 (4.5 to 22.0)12.7 (5.4 to 24.9)17.5 (8.0 to 33.2)21.4 (10.3 to 39.8)32.8 (17.2 to 58.5)

The ranges use 0.3 to 1.0% for shrimp, 0.7 to 1.5% for marine finfish 32 and 0 to 0.2% for freshwater fish. AQ-LOW gives 14.8 kt in 2050. The AQ-BASE 2050 need equals about 85 kt of marine fish oil at 25% EPA plus DHA (41 to 159 kt), part of it supplied by residual oil in fishmeal.

about 21 kt of EPA plus DHA (10 to 40 kt)
Aquafeed omega-3 need, 2050
2050Our calculation
Context and sources

About 11 kt today. Vietnam's pangasius fish oil is not an omega-3 source (0.17 to 0.31% EPA plus DHA), so the need must be imported or made. Our estimate. 33,30

Protein balance 2050 →

Vietnam's fish oil is not an omega-3 source. Oil from pangasius processing waste holds 0.07 to 0.15% EPA and 0.10 to 0.16% DHA in its fatty acids, in a study of Indonesian farmed pangasius 30 . Vietnam's 190 kt of fish oil therefore holds only about 0.4 to 0.6 kt of EPA plus DHA (our calculation), against a need of about 11 kt .

The global gap. World EPA plus DHA supply is "optimistically estimated at just over 0.8 million tonnes", with a shortfall of more than 0.4 Mt, or over 1 Mt in pessimistic calculations; almost 90% comes from capture fisheries 33 .

Alternatives on the market

ProductStatusEvidence
Algal oil (Schizochytrium), VeramarisUSD 200 M plant (2019) on US corn syrup; capacity claimed equal to 1.2 Mt of wild fish and about 15% of salmon farming's EPA plus DHA need; about twice fish oil's content; used in salmon, shrimp and marine-fish feeds34,35,33 (company claims)
Algal omega-3, CorbionReported in about 30% of salmon diets (basis unclear)35
Omega-3 canola oil (transgenic)Replaced 100% of fish oil in low-fishmeal whiteleg shrimp diets without growth loss36
Vietnamese rules6 GE canola events approved for food and feed; the aquafeed permitted list has no microalgae37,38

Credible 2050 shares for alternative ingredients (AQ-BASE; our calculation, aqf_calc.py)

ItemLow endHigh end
Fishmeal replaced (of 253 kt, at 65% CP)10%: 16 kt of protein40% (as in S-ALT; trials support 25 to 60%): 66 kt
Functional inclusion in shrimp and marine feeds (2,640 kt, at 70% CP)1%: 18 kt3%: 55 kt
Soybean-meal protein in all aquafeed (1,252 kt)None5%: 63 kt
Novel protein, total35 kt (1.1% of aquafeed CP; 1.7% on the industry scale)184 kt (5.9%; 8.9%)
Non-marine EPA plus DHA (share of 21.4 kt)15%: 3.2 kt, about 6 kt of algal oil50%: 10.7 kt, about 21 kt of algal oil
  • Why omega-3 can go further than protein: Vietnam has no domestic EPA plus DHA; the global gap is structural; the products are commercial and trialled in shrimp; and value per tonne of feed is high . On protein, the soybean-meal slice is priced out at 2026 costs (4.6 to 5.1 times soybean-meal protein, Feed and aquafeed market, H11), and Chinese single-cell protein competes for the fishmeal slice.
  • Binding conditions to 2050: the fish-oil price in El Niño years, listing of algal and transgenic oils as aquafeed raw materials, and import cost . A Vietnamese algal-oil plant would need sugar or glycerol, which links omega-3 to Part 2.
  • Chapter 19 adopts the 15 to 50% range as a normative goal (Vision 2050).
15 to 50% of EPA plus DHA
Vision: non-marine omega-3 in aquafeed, 2050
visionOur calculationVision, not forecast
Context and sources

Normative goal based on commercial algal and oilseed omega-3 oils; omega-3 canola oil has replaced all fish oil in low-fishmeal shrimp diets without growth loss. 36,34,35

Vision 2050 →

Z.7 Protein crops and biotech rules

Soybean in Vietnam

YearArea, khaYield, t per haBean imports, MtEvidence
2010About 205 (peak)39
202136.839
2024 to 2025Under 20 (press) or 39.0 (OECD-FAO)1.62 (press) or 1.28 (OECD-FAO)2.50 to 2.6039,8
203039.31.192.918
203538.91.153.118
  • We use 20 to 39 kha for current area and OECD-FAO for projections; the yield series disagree and we leave that unresolved . Domestic beans cost VND 25,000 to 30,000 per kg against VND 13,000 to 15,000 for imports, and profit is about VND 20 million per ha 39 . Domestic beans go to food, whose use alone was 540 kt in 2025 40 .
  • The crop strategy (Decision 1748) sets no soybean, maize or cassava target 41 . A press proposal for winter soybean on 300 kha of Red River Delta rice land is not an adopted plan 39 .

What-if: domestic soybean in 2050. Bean-equivalent need is soybean-meal need divided by 0.78: 13.3 Mt in S-BASE and 9.0 Mt in S-EFF (our calculation) .

Area and yieldBeans, ktShare of S-BASE needShare of S-EFF need
39 kha x 1.28 t per ha (today)500.4%0.6%
100 kha x 2.0 t per ha2001.5%2.2%
300 kha x 2.5 t per ha7505.6%8.4%

Domestic beans would first displace food-soy imports, so their contribution to feed protein by 2050 is close to zero unless better varieties close the yield gap and a feed-grade price is supported .

Biotech rules

ItemStatusEvidence
GE events for food and feed60 in total. By crop: maize 16, soybean 15, cotton 10 and alfalfa 4 (feed only), canola 6, sugar beet 1; these sum to 52, and we could not place the other 837
GE maize for cultivation31 hybrids; about half of feed-maize area in 2023 to 202437
GE soybeanNo field-test application ever submitted; gene-edited high-protein lines in greenhouse biosafety evaluation37
Decree 43/2026/ND-CPGene-edited organisms without foreign DNA leave GMO rules (notification at MAE); approval cut from 90 to 45 working days for events cleared in five OECD or G20 countries; refined products are not "GM food"; first rules for GM microorganisms in contained production42 (secondary summary)

Reading. Gene editing is the only long-run route by which domestic soybean could matter for feed; the first signals to watch between 2026 and 2035 are a notification under Decree 43/2026 or a field-test application . Duckweed and azolla have been fed in northern Vietnam for centuries 43,44, but we found no current area or volume data .

Z.8 Climate and aquaculture geography

DriverEvidenceEffect on aquafeed by 2050Source
Mekong salinitySalinity-affected area up 10 to 27% by about 2050 from subsidence and riverbed incision, plus 6 to 19% from sea-level rise (climate_impacts_2050.csv, CI-11, CI-12)Coastal land moves from rice to shrimp: more protein-dense, fishmeal-using feed45,46,47
Pangasius sitesAll 2009 farm sites face 2 m floods at +50 cm of sea-level rise (after 2050 in most scenarios); at +75 cm salinity shortens grow-out in Can Tho (former Soc Trang), Vinh Long (former Ben Tre) and Dong Thap (former Tien Giang)Pangasius feed demand may move rather than shrink48
Pangasius range"Likely to expand northward", with the Red River Delta playing a larger rolePangasius feed mills in the north49
Northern warming1.2 to 1.3 °C by 2050 slows tilapia growthPoorer feed conversion for northern tilapia49
Typhoons and floodsWooden cages lost in 2017; 1.1 Mt of farmed output at risk of flood loss each yearShift to HDPE and pellets; supply shocks23,50
El NiñoHits fishmeal and fish oil togetherPrice spikes in marine ingredients28,29

About 80% of Vietnamese shrimp is farmed in the Mekong Delta 49 . We found no dated SSP-based projection of Vietnamese shrimp or pangasius output, and no quantified link between heat and disease. On current evidence, climate to 2050 changes where aquafeed is used more than how much .


Part 2. Carbon feedstocks

Z.9 The S-ALT glucose need and competing uses

The sugar route in S-ALT needs 238 kt of glucose in 2030, 852 kt in 2040 and 1,318 kt in 2050 (balance_outputs.csv, BLO-0888, BLO-1048, BLO-1128) . S-ALT is a stretch above every real-world analogue (Protein balance 2050), so this is an upper test, not an expected demand.

YearGlucose, ktAs fresh cassava roots, ktCassava land, khaOr as sucrose, ktUrea, kt
20302389684722622
20408523,47316981079
20501,3185,3682621,252122

Source: balance model, tools/balance_model.py .

Competing use (2025 or 2026)ValueShare taken by the 2050 needEvidence
Domestic cassava harvest10.24 Mt of fresh roots (2025)About 52%51
Roots bought by factoriesOver 18 Mt a year, about 42% importedAbout 30%52
Cassava starch exportsAbout 2.49 Mt (2025), over 90% to China1.22 Mt of starch: about half51
Fuel ethanol (E10)Mandatory from 1 June 2026; three plants make 830 m3 a day; about 80% of E10 ethanol still imported in mid-2026Competes for chips and roots53,54,55
Sugar1.298 Mt (2025/26)About 96%56

Cassava-starch glucose costs about USD 511 to 560 per t at April 2026 prices (our estimate from starch at USD 520 to 540 FOB 57, 1.08 t of glucose per t of starch, plus USD 30 to 60 for hydrolysis) . The nitrogen need (0.37 t of urea per t of protein) does not change with the carbon source. The question for Part 2 is how much carbon could come from residues, side streams and one-carbon feedstocks without cutting food or starch exports.

Z.10 Rice straw

Rơm rạ (rice straw and stubble).

Stream2025203020402050Basis and evidence
National straw, Mt air-dry51.847.6 to 51.244.0 to 50.041.6 to 48.8Paddy 43.5 Mt 58 x 1.19 59; later paddy is our path from the rice-land cut 60 and the 35 Mt floor 61. (2025); (later)
Mekong DeltaOver 24 Mt; about 30% collected, 70% burned or buried62
1 million ha low-emission rice programmeAbout 14 Mt (two crops)100% to be collected62,63 (official target)
  • Straw yield is about 4.72 t per ha, at 12.4% moisture when baled 64 ; straw is about 38% cellulose, 25% hemicellulose and 12% lignin, with high ash 65 .
  • About half the national straw is surplus to current uses, 55% of it in the Mekong Delta; former Kien Giang alone could run 245 MW of straw power (2019 basis) 59 .
  • The national figure is robust to about 20%: straw-to-grain ratios run 0.7 to 1.4 in Thailand 66, and Mekong data imply 1.14 67 .

Straw needed for the S-ALT sugar route at 0.31 to 0.44 t SE per t of air-dry straw (the low end for organisms that cannot use xylose; our calculation, ngf_calc.py)

YearStraw, MtShare of national strawShare of the programme's 14 MtPlants of Panipat's size (0.2 Mt a year)
20401.9 to 2.83.9 to 6.3%14 to 20%10 to 14
20503.0 to 4.36.1 to 10.3%21 to 31%15 to 21

All national straw could in theory give 12.8 to 21.5 Mt SE in 2050, 10 to 16 times the need. Tonnage is not the constraint.

Competing uses

UseEvidencePressure to 2050
MushroomsUSD 50 to 100 net per t of straw 65; dry-season straw mostly collected for mushrooms, fodder and mulch 64 Sets a floor of about USD 25 to 50 per t delivered (our assumption)
Soil returnIncorporation raises paddy emissions 1.5 to 2 times against removal 65 The low-emission programme favours removal
Biomass power4.8 to 7.0 GW of biomass planned for 2050 68 ; at 8.2 Mt of straw per GW a year this would take 39 to 58 Mt if all straw-fired (our calculation)The largest competitor if tariffs favour straw
Second-generation ethanolE15 and E20 discussed, residues named as a future feedstock, enzyme costs high 69; 10.9 billion litres of potential (2017 study) 70 Competes for straw and plants
Burning or buryingAbout 70% of Mekong straw 62 Shrinking by policy: the "free" tranche

Costs. Mechanised collection costs USD 12 to 18 per t 64 ; at USD 25 to 50 per t delivered, straw adds USD 57 to 162 per t SE for the feedstock alone (our calculation) . Technology in brief: mature-plant models give USD 342 to 467 per t of cellulosic sugar, but first-of-a-kind plants cost USD 2,100 to 2,400 per t of annual capacity, and India's rice-straw plant at Panipat reached 62% of design only in December 2025, after its first problem, buying straw from farmers who preferred to burn it 71,72,73,74,75 . Details: V. Frontier technology.

Z.11 Cassava pulp, liquid side streams, food waste and manure biogas

Technical sugar-equivalent potential if the whole stream were used in 2050 (our calculation, ngf_calc.py) :

StreamVolume, 2025SE per tTechnical SE, 2050, MtConstraintEvidence
Cassava pulp (bã sắn), starch fraction0.48 to 0.98 Mt of starch0.970.47 to 0.96Already sold as feed; swings with Chinese starch demand76,77,78
Cassava stems not replanted0.86 to 1.29 Mt dry matter0.15 to 0.290.12 to 0.37Dispersed upland collection79,80,81
Molasses0.55 to 0.72 Mt0.500.29 to 0.38Already used for MSG, yeast, alcohol82,83
Starch wastewater22 to 32 million m3; 0.23 to 0.65 Mt of COD0.66 per t of COD0.15 to 0.43Dilute; best as process water or biogas84,85,86
Ethanol stillage0.23 Mt of ethanol (0.60 Mt in 2050, our path)0.10 to 0.15 per t of ethanol0.06 to 0.09Needs co-location54,69
Tofu, soy-milk and brewery wastewater0.07 to 0.13 Mt SE0.07 to 0.13Only large plants practical87,88,89
Household food waste7.7 Mt wet (76 kg per person)0.08 to 0.150.67 to 1.25Needs source separation; rules (Z.12)90
Pig-manure methane, capturable0.13 Mt (0.29 Mt in 2050)2.350.69Competes with farm energy91,92

Bagasse (0.71 to 1.01 Mt SE), maize stover (1.40 to 2.00) and coffee pulp (0.07 to 0.14) are lignocellulosic and mostly committed to boilers, fodder or fertiliser (feedstock_futures.csv, FFU-003, FFU-006, FFU-007).

  • Cassava pulp is the only near-term second-generation carbon of scale. Its starch needs only ordinary amylases, and 2024 volumes were about 60% of 2025's. Diverting pulp removes a feed carbohydrate, so the net gain is the protein made (Feedstock data sheets, C3) .
  • Liquid side streams are small but free and at a factory gate. Enifer's revival of the PEKILO mycoprotein process is the model to watch: a 3,000 t a year plant under construction in Finland and a 500 t pilot on corn-ethanol thin stillage in Brazil, both reported in 2025 93 (company claims).
  • Pig-manure methane (our estimate): 31.4 M pigs 91 x 0.3 kg of volatile solids per head a day x 0.29 m3 of methane per kg x 60% gives about 0.43 Mt a year, of which the large-farm share (30% in 2025, 65% by 2050, our assumption) is capturable . We found no national biogas figure.
  • One-carbon feedstocks in brief. Methanol-fed yeast protein is at pilot scale in China, at about 4.6 t of methanol per t of protein 94 . The whole 2050 S-ALT need via e-methanol would take about 1.5 Mt of methanol, 0.29 Mt of green hydrogen (1.5 to 2.9% of the 2050 hydrogen target 95), 2.1 Mt of CO2 and about 16 TWh (our calculation) . The limit is cost, not volume (V. Frontier technology).

Z.12 Rules as a ceiling

  • EU feed law is precise. Regulation 767/2009, Annex III, bans from feed "All waste obtained from the various phases of the treatment of the urban, domestic and industrial waste water", "irrespective of any further processing of that waste", plus household waste and faeces. A footnote exempts process water in independent conduits that carries feed or food material and is free of cleaning agents 96 .
  • Vietnamese rules are permissive but vague. We found no legal ban on food waste or wastewater-derived substrates for feed; the veterinary authority only advises cooking kitchen waste at 100 °C for 20 to 30 minutes before feeding pigs 97 . The feed listing of microbial biomass is the real gate (Rules).

How each stream fares under EU-style rules (our reading of the Annex)

StreamPositionPerception risk for export chains
Cassava pulp, molasses, stillage, straw and bagasse hydrolysatesBy-products; not in the banned categoriesLow
Starch, tofu and brewery process water, before treatmentDefensible under the process-water exemptionLow to medium
Effluent from a treatment lagoon or plantBanned, whatever the later processingHigh
Household food wasteBannedHigh
Pig-manure biogasNot addressed directly: the gas is not faeces, but it comes from themHigh
e-methanol from CO2 and hydrogenNot waste-derivedLow

Exporters that follow EU-style rules would reject protein grown on wastewater-treatment streams, food waste or manure-derived gas, whatever Vietnamese law allows, so from 2026 onwards this is a ceiling on such carbon, and Cases A and B send only small shares of these streams to protein . A Vietnamese rule that follows the EU line between process water and treatment waste would lift the uncertainty (Robust moves, RM-06).

Z.13 Cases A, B and C for 2040 and 2050

Case rules: share of each stream sent to fermentation in 2050, with 2040 in brackets where different (our assumptions, ngf_calc.py). No case cuts food or starch exports; released land is excluded. All .

StreamA. No 2G breakthroughB. 2G works at modest scaleC. 2G and one-carbon at scale
Rice straw, Mt a year01.0 (0.3)5.0 (2.0)
Cassava pulp starch10%25%50%
Ethanol stillage20%50%80%
Starch wastewater; food-industry wastewater5%; 5%10%; 20%30%; 40%
Bagasse; maize stover03% (2%); 3% (2%)15% (10%); 10% (5%)
Cassava stems; coffee pulp; molasses010%; 5%; 5%25%; 20%; 10%
Household food waste; pig-manure methane02%; 5% (2%)10%; 20% (10%)
e-methanol, Mt SE00.10 (0.01)0.50 (0.10)

Results: Mt SE a year and share of the S-ALT sugar-route need (our calculation, ngf_calc.py)

Year (need, Mt)Case ACase BCase CLignocellulosic (B; C)One-carbon (B; C)
2030 (0.24)0.03 to 0.06 (13 to 27%)0.08 to 0.16 (35 to 69%)0.20 to 0.38 (85 to 161%)0.01; 0.04 to 0.050; 0
2040 (0.85)0.07 to 0.14 (8 to 16%)0.37 to 0.65 (44 to 76%)1.40 to 2.24 (165 to 263%)0.13 to 0.19; 0.76 to 1.080.02; 0.16
2050 (1.32)0.07 to 0.14 (5 to 11%)0.73 to 1.11 (55 to 84%)2.92 to 4.20 (222 to 319%)0.37 to 0.53; 1.79 to 2.550.13; 0.64
Protein this could grow in 2050, kt18 to 35183 to 278730 to 1,050

Case B in 2050, step by step (Mt SE): straw 1.0 Mt x 0.31 to 0.44 = 0.31 to 0.44; pulp starch 0.48 to 0.98 x 25% x 0.97 = 0.12 to 0.24; e-methanol 0.10; stover 0.04 to 0.06; stillage 0.03 to 0.05; manure methane 0.03; bagasse 0.02 to 0.03; starch wastewater 0.02 to 0.04; the other five streams 0.06 to 0.11. Total 0.73 to 1.11.

Plants and investment at first-of-a-kind costs of USD 2,100 to 3,400 per t of annual sugar capacity, from Panipat and Podari (our calculation)

ItemCase ACase B, 2040 / 2050Case C, 2040 / 2050
Plants of Panipat's straw size0About 1.5 / 510 / 25
Straw sugar, Mt SE00.09 to 0.13 / 0.31 to 0.440.62 to 0.88 / 1.54 to 2.20
Capital for straw-sugar plants, USD billion00.2 to 0.45 / 0.6 to 1.51.3 to 3.0 / 3.2 to 7.5

Meeting the whole S-ALT need from straw sugar would take USD 1.8 to 2.9 billion by 2040, and USD 2.8 to 4.5 billion and 15 to 21 Panipat-size plants by 2050. We did not cost side-stream plants or an e-methanol industry.

  • Case A is today's reality extended: about a tenth of the 2050 need, almost all from cassava pulp. The carbohydrate ceiling stands.
  • Case B turns the ceiling into a capital question: five Panipat-size plants (or two of 500 kt of straw) running reliably by 2050, plus side-stream plants at starch factories and ethanol plants. The trigger is an Asian straw plant running reliably above 80% of design (Robust moves, RM-19).
  • Case C removes the ceiling but needs about 10% of national straw and an e-methanol industry: an ambitious bet, not a plan.
  • No case changes the nitrogen need or makes the carbon low-carbon by default. One Indian bagasse-sugar study gives 1.57 kg CO2e per kg of sugar, above Thai cassava starch at 0.60 to 0.97 kg 98,99 .
  • Vietnam has no 2G pilot for straw, bagasse or coffee husk 69,70 . China listed 35 "non-grain bio-based" cases in January 2026, yet BBCA's non-grain lactic acid is 1,000 t within 500,000 t of capacity 100 .

Z.14 Land: released rice land and protein per hectare

The adjusted national land plan (Decision 1177/QD-TTg, June 2026) sets rice land at 3,252.63 kha in 2030 against 3,907.07 kha in 2024, a release of about 654 kha 60 (official plan). Against the 2021 plan, agricultural land falls by 1,120.62 kha and non-agricultural land rises by 1,192.43 kha 101 .

Where it is going. In the 2026 winter-spring season rice area fell 37.3 kha. In the south, 12 kha went to other annual crops, 5.6 kha to perennial crops and 1.9 kha to aquaculture (Can Tho alone 14.8 kha); in the north, conversions went mostly to non-farm uses, such as 800 ha for an airport and 938 ha for industrial zones and transport in Bac Ninh 102 . Under Decree 112/2024, land that switches crops, or combines rice with aquaculture ponds of up to 20% of the plot, still counts as rice land 103 ; so the 654 kha is mainly land leaving agriculture. No plan names a protein crop 60,41 . If all 654 kha grew cassava for fermentation after 2030 it would give 3.3 Mt of glucose a year, an upper bound on first-generation carbon from soils that suit cassava poorly (our calculation) .

Protein per hectare (all 15 rows of land_protein_yields.csv; our calculation unless stated)

Systemkg of protein per ha a yearBasisEvidence
Soybean, Vietnam (1 crop)5801.62 t per ha x 36%87
Soybean, import origins1,1403.16 t per ha x 36%104
Imported soybean-meal protein1,410About 0.71 ha per t (balance model, mass allocation)
Maize grain, Vietnam (1 crop)4605.43 t per ha x 8.5%58,1
Rice paddy, Mekong (2 crops)7906.10 t per crop x 6.5% x 258
Cassava roots used directly25020.5 t per ha x 1.2%51
Cassava via microbial fermentation1,2605.03 t of glucose per ha / 4.051,77
Sugarcane via microbial fermentation1,4105.38 t of sugar per ha (Gia Lai)105
Rice straw via 2G sugar (no extra land)730 to 1,0402 crops x 4.72 t x 0.31 to 0.44 / 4.064,65
Napier grass, typical / intensive2,500 / 9,60026 or 71 t of dry matter; ruminants only106
Duckweed on pig-manure water7,500Extrapolated from a 175-day pilot in Flanders107
Duckweed, edition 1.0 planning range2,500 to 10,50010 to 30 t of dry matter x 25 to 35%108,109
Microalgae in closed systems22,000 to 44,000Potential, not achieved110
Power-to-protein on solar land13,000 to 22,000450 to 750 m2 of panels per t111
  • Per hectare, fermentation beats Vietnamese soybean: cassava and cane via microbes give about twice Vietnam's soybean protein and about the same as imported soybean meal, so cassava-based microbial protein moves land use rather than saving it .
  • Straw adds protein with no extra land, but only if cellulosic sugar becomes bankable.
  • On wet released land, the land-efficient options are aquatic and forage systems, not grain legumes. Duckweed (bèo) is already on the livestock feed list (Rules); we found no tropical field data for its yield .

Z.15 Gaps, disagreements and open questions

Gaps (these feed Q. Open questions)

GapWhy it mattersCheapest way to close it
Direct trash-fish use by species and provinceSizes the replacement market (0.4 to 1.6 Mt)RIA3 (Nha Trang) and MAE surveys; the FAO low-value-fish report 112
Marine finfish output and marine feed volume, 202518 kt modelled against 80 to 100 kt reportedMAE annual review; mill volumes
Lobster outputUSD 845 M of exports against a 3 to 5 kt planCustoms HS 0306.21 volumes; cage counts
Vietnam aquaculture projections beyond 2035None publishedWorldFish Vietnam team; AsiaFish model runs 49
EPA plus DHA requirements of Vietnamese speciesDrives the 10 to 40 kt rangeReview for whiteleg shrimp, cobia, pompano and grouper
Grade mix and price of Vietnamese fishmealWhether by-product meal can serve shrimp and marine feedsCustoms HS 2301.20 by grade
GE event count (60 against 52 by crop); Decree 43/2026 full textRead only through secondary summariesRe-read USDA GAIN VM2025-0045 37; read the decree
Mekong straw prices and shares by useSets the delivered straw costSustainable Rice Straw Management (open access) 65; provincial agriculture departments
Pretreatment of high-silica Mekong strawPanipat's problems were silica and moistureBench study at a Vietnamese university
National biogas and starch wastewater CODOur lines are estimates; COD varies seven-foldNguyen and others 2024 113; a survey of starch factories in Tay Ninh
Vietnamese rule on waste-derived feed substratesDecides the ceiling in Z.12One question to MAE's livestock department
Heat and disease losses in aquacultureClimate effect on feed volumeNot quantified by us

Disagreements (for R. Disagreements)

TopicSource ASource BPosition taken
Capture in 20302.8 Mt target 33.50 Mt in OECD-FAO 8Both shown; OECD-FAO does not model the fleet cut
Aquaculture in 20307.0 Mt target6.12 Mt (OECD-FAO); 6.58 Mt (S-BASE)AQ-HIGH follows the target; AQ-BASE follows S-BASE
Soybean area and yieldUnder 20 kha; 1.62 t per ha 3939 kha; 1.28 t per ha 8Area 20 to 39 kha; yield unresolved
Vietnamese fishmeal output325 kt (OECD-FAO, 2025)About 500 kt a year, 2005 to 2016 (secondary) 18OECD-FAO used; the 500 kt may include fish powder
Marine finfish FCR on trash fish"2 to 2.5" 21Grouper 5.9 wet 175 to 8 wet used
National rice straw54 Mt, ratio 1.19 5997 Mt, ratio 2.2 1141.19 used
Cellulosic sugar costUSD 342 to 467 per t 71,72USD 1,320 per t 98Both reported

Data files

  • aquaculture_projections.csv (44 rows): 2025 output by species, official targets, published projections, and our paths, aquafeed, trash-fish and extra-pellet estimates.
  • marine_ingredients_2050.csv (39 rows): world and Vietnamese fishmeal and fish oil to 2035 and 2050, by-product shares, pangasius supply, EPA plus DHA needs and credible alternative shares.
  • protein_crops_vn.csv (29 rows): soybean and maize data, GE approvals, Decree 43/2026, soybean what-ifs, released rice land, duckweed.
  • feedstock_futures.csv (17 rows): each residue, side stream and one-carbon route with volumes to 2050, sugar-equivalent yield, cost, TRL, competing uses and rules.
  • land_protein_yields.csv (15 rows): protein per hectare by crop or system.
  • balance_outputs.csv (1,150 rows): here, the S-ALT glucose, cassava, sugar and urea rows and S-BASE aquaculture and aquafeed.
  • climate_impacts_2050.csv (34 rows): here, rows CI-11, CI-12, CI-24, CI-25 and CI-30.
  • Scripts and notes: working-papers/wave3/aquaculture_futures/ and working-papers/wave3/next_gen_feedstocks/.

Related: Protein balance 2050, Frontier technology, V. Frontier technology, W. Balance model, Feed and aquafeed market, Feedstock data sheets, Vision 2050, Robust moves, X. Drivers and signals, Q. Open questions, R. Disagreements.

Sources cited on this page

All sources (Appendix T)

  1. MAC-01 USDA FAS GAIN. Vietnam: Grain and Feed Annual, report VM2026-0012. 15 Apr 2026
  2. MAC-06 Mardiana. Aquafeeds in 2025: Disrupted by tariffs. 30 Jun 2026
  3. NTS-08 Prime Minister. Quyết định 339/QĐ-TTg, Chiến lược phát triển thủy sản Việt Nam đến năm 2030, tầm nhìn 2045. 11 Mar 2021
  4. AQF-28 Prime Minister. Quyết định 339/QĐ-TTg (11 Mar 2021), re-read for species-level targets. 11 Mar 2021
  5. AQF-01 Prime Minister. Quyết định 1664/QĐ-TTg phê duyệt Đề án phát triển nuôi trồng thủy sản trên biển đến năm 2030, tầm nhìn đến năm 2045. 4 Oct 2021
  6. AQF-15 Prime Minister. Quyết định 389/QĐ-TTg Quy hoạch bảo vệ và khai thác nguồn lợi thủy sản thời kỳ 2021-2030, tầm nhìn đến năm 2050. 9 May 2024
  7. AQF-13 Người Lao Động (Tuổi Trẻ). Khánh Hòa công bố đề án thí điểm nuôi biển công nghệ cao. 7 Mar 2025
  8. AQF-02 OECD and FAO. OECD-FAO Agricultural Outlook 2026-2035, SDMX API, dataflow OECD.TAD.ATM DSD_AGR@DF_OUTLOOK_2026_2035 version 1.1. June 2026
  9. AQF-25 Chan, C.Y., Tran, N., Dao, D.C., Sulser, T.B., Phillips, M.J. and others. Fish to 2050 in the ASEAN region. 2017
  10. AQF-03 FAO. SOFIA 2026: Global fisheries and aquaculture production reaches new highs. 16 Jun 2026
  11. MAC-15 NSO. Thuy san Viet Nam quy IV va ca nam 2025: Giu da tang truong, vuot thach thuc, huong toi phat trien ben vung. 8 Jan 2026
  12. AQF-11 VnEconomy. Phấn đấu sản lượng thủy sản nuôi biển đạt 1,4 triệu tấn vào năm 2030. 12 May 2022
  13. AQF-12 Báo Chính phủ. Đưa tôm hùm thành mặt hàng 'tỷ đô'. 7 Jul 2026
  14. MAC-17 NSO. Bao cao tinh hinh kinh te - xa hoi Quy II va sau thang dau nam 2026. Jul 2026
  15. FM-10 Tap chi Thuy san Viet Nam. Nhieu doanh nghiep dong loat tang gia thuc an thuy san. 5 Jun 2026
  16. VCO-10 Royal De Heus. De Heus expands aquaculture capabilities with new marine and cold-water fish feed mill. 22 Jul 2026
  17. AQF-05 Edwards, P., Le Anh Tuan and Allan, G.L.. A survey of marine trash fish and fish meal as aquaculture feed ingredients in Vietnam. 2004
  18. AQF-06 Leadbitter, D.. Driving change in South East Asian trawl fisheries, fishmeal supply, and aquafeed. 2019
  19. AQF-07 Journal of Agriculture and Ecology Research International. Mariculture in Southern Central Region, Vietnam: Status and Orientation Toward Sustainable Development. 2021
  20. AQF-08 Reviews in Aquaculture. Bioeconomics of mud crab, Scylla paramamosain, culture in Vietnam. 2013
  21. AQF-10 Khoa Thủy sản, Học viện Nông nghiệp Việt Nam (VNUA). Thực trạng và hướng phát triển bền vững nuôi cá biển. 21 Oct 2024
  22. AQF-09 Tạp chí Thủy sản Việt Nam. Thức ăn cho nuôi thủy sản trên biển. 9 Nov 2022
  23. AQF-14 Báo Khánh Hòa. Vươn khơi nuôi biển, Kỳ 1: Thúc đẩy phát triển nuôi biển công nghệ cao. 3 Sep 2025
  24. AQF-04 IFFO, The Marine Ingredients Organisation. Update on by-product marine ingredients. March 2026
  25. HSC-29 SeafoodSource. Peru extends anchovy fishing suspension again, threatening global fishmeal supply. 12 June 2026
  26. HSC-30 SeafoodSource. Peru ends North-Central anchovy season after lengthy pause. 21 August 2026
  27. HSC-28 NOAA Climate Prediction Center. ENSO Diagnostic Discussion. 10 September 2026
  28. CLM-27 Cai W. et al.. Increasing frequency of extreme El Nino events due to greenhouse warming. 2014
  29. CLM-28 IPCC. Climate Change 2021: The Physical Science Basis. 2021
  30. AQF-29 Aryani, N., Suharman, I. and Heltonika, B.. Changes in the fatty acid profile of fish oil derived from Pangasius catfish (Pangasianodon hypophthalmus) processing waste due to variations in fish size and heating temperatures. 2023
  31. MAC-45 South African Journal of Animal Science 46. Effects of replacing marine fishmeal with graded levels of Tra Catfish by-product protein hydrolysate on the performance and meat quality of pigs. 2016
  32. AQF-18 Vagner, M., Lacoue-Labarthe, T., Zambonino-Infante, J.-L. and others. Depletion of essential fatty acids in the food source affects aerobic capacities of the golden grey mullet Liza aurata in a warming seawater context. 2015
  33. AQF-16 Tocher, D.R., Betancor, M.B., Sprague, M., Olsen, R.E. and Napier, J.A.. Omega-3 long-chain polyunsaturated fatty acids, EPA and DHA: bridging the gap between supply and demand. 2019
  34. AQF-23 Veramaris. Veramaris opens US$200m facility for EPA and DHA omega-3 algal oil. 10 Jul 2019
  35. AQF-24 Feed Strategy. Plant-based fish oil alternatives growing fast in aquafeed. 1 Jun 2021
  36. AQF-19 Vo, L.L.G., Galkanda-Arachchige, H.S.C., Iassonova, D.R. and Davis, D.A.. Efficacy of modified canola oil to replace fish oil in practical diets of Pacific white shrimp Litopenaeus vannamei. 2021
  37. AQF-21 USDA Foreign Agricultural Service. Biotechnology and Other New Production Technologies Annual, Vietnam, VM2025-0045. 1 Dec 2025
  38. REG2-01 MAE. Thông tư 16/2026/TT-BNNMT quản lý giống thủy sản, thức ăn thủy sản, sản phẩm xử lý môi trường nuôi trồng thủy sản. 9 Mar 2026
  39. AQF-20 VnEconomy. Ngành đậu tương có nhiều 'nút thắt' cần tháo gỡ. 7 Nov 2024
  40. MAC-04 USDA FAS GAIN. Vietnam: Oilseeds and Products Annual, report VM2026-0006 (Nguyen Linh). 15 Apr 2026
  41. NTS-22 Prime Minister. Quyết định 1748/QĐ-TTg, Chiến lược phát triển trồng trọt đến năm 2030, tầm nhìn 2050. 30 Dec 2023
  42. AQF-22 ISAAA Crop Biotech Update. Vietnam updates regulatory framework for agricultural biotechnology. 29 Apr 2026
  43. AQF-30 Lumpkin, T.A.. Advances in Chinese research on Azolla. 1985
  44. AQF-31 Men, B.X., Ogle, B. and Lindberg, J.E.. Effect of diet and management system on growing duck performance in the Mekong Delta of Vietnam. 2002
  45. CLM-15 Eslami S., Hoekstra P., Minderhoud P.S.J. et al.. Projections of salt intrusion in a mega-delta under climatic and anthropogenic stressors. 2021
  46. CLM-21 Prime Minister. Decision 287/QD-TTg approving the Mekong Delta regional plan 2021 to 2030, vision 2050. 28 Feb 2022
  47. CLM-40 Braun G. et al.. Pesticides and antibiotics in permanent rice, alternating rice-shrimp and permanent shrimp systems of the coastal Mekong Delta, Vietnam. 2019
  48. CLM-20 Nguyen A.L., Dang V.H., Bosma R.H., Verreth J.A.J., Leemans R., De Silva S.S.. Simulated impacts of climate change on current farming locations of striped catfish (Pangasianodon hypophthalmus) in the Mekong Delta, Vietnam. 2014
  49. AQF-26 Tran, N., Chan, C.Y. and Aung, Y.M.. Future scenarios of climate change impacts on fisheries and aquaculture in Vietnam. 2022
  50. CLM-08 Socialist Republic of Viet Nam. Nationally Determined Contribution, updated 2022. Nov 2022
  51. FS-01 Dân Việt. Việt Nam đang là nhà cung cấp lớn nhất một thứ tinh bột cho Trung Quốc, năm 2025 bán được gần 3,7 triệu tấn. January 2026
  52. FS-14 VietnamPlus. Vietnam third-largest cassava exporter, supply chain still faces hurdles. 29 January 2026
  53. GT-10 MOIT. Thông tư 50/2025/TT-BCT quy định lộ trình áp dụng tỷ lệ phối trộn nhiên liệu sinh học với nhiên liệu truyền thống tại Việt Nam. 7 Nov 2025
  54. FS-09 Báo Chính phủ. Sản xuất ethanol cho xăng E10: Nhà máy chuyển đổi nguyên liệu, hướng tới 125% công suất. 4 August 2026
  55. IND-20 CafeF. Hoi sinh loat nha may ethanol nghin ty. 10 July 2026
  56. FS-31 Doanh nghiệp Hội nhập. Ngành mía đường sản xuất gần 1,3 triệu tấn, áp lực tiêu thụ vẫn đè nặng. 16 July 2026
  57. FS-11 Nông nghiệp và Môi trường. Nguồn cung giảm mạnh, giá sắn gần gấp đôi cùng kỳ 2025. 9 April 2026
  58. FS-25 National Statistics Office (NSO). Báo cáo tình hình kinh tế - xã hội quý IV và năm 2025. January 2026
  59. NGF-01 Cuong, T.T., Le, H.A., Khai, N.M. and others. Renewable energy from biomass surplus resource: potential of power generation from rice straw in Vietnam. 2021
  60. NTS-15 Prime Minister. Quyết định 1177/QĐ-TTg điều chỉnh Quy hoạch sử dụng đất quốc gia 2021 to 2030, tầm nhìn 2050. 30 Jun 2026
  61. NTS-04 Party Central Committee. Nghị quyết 19-NQ/TW về nông nghiệp, nông dân, nông thôn đến năm 2030, tầm nhìn đến năm 2045. 16 Jun 2022
  62. NGF-04 Kim Anh. Làm sao tiêu thụ hết 14 triệu tấn rơm rạ từ một triệu hecta. 8 Apr 2025
  63. NTS-32 Prime Minister. Quyết định 1490/QĐ-TTg, Đề án phát triển bền vững một triệu héc-ta chuyên canh lúa chất lượng cao và phát thải thấp vùng ĐBSCL đến năm 2030. 27 Nov 2023
  64. NGF-02 Hung, N.V., Nguyen, C.D., Tran, T.V. and others. Energy efficiency, greenhouse gas emissions, and cost of rice straw collection in the Mekong River Delta of Vietnam. 2016
  65. NGF-05 Hung, N.V., Maguyon-Detras, M.C., Migo-Sumagang, M.V. and others. Rice Straw Overview: Availability, Properties, and Management Practices. 2020
  66. NGF-15 Jusakulvijit, P., Bezama, A., Thran, D.. The Availability and Assessment of Potential Agricultural Residues for the Regional Development of Second-Generation Bioethanol in Thailand. 2021
  67. NGF-03 Arai, H., Hosen, Y., Pham Hong, V.N. and others. Greenhouse gas emissions from rice straw burning and straw-mushroom cultivation in a triple rice cropping system in the Mekong Delta. 2015
  68. NTS-26 Prime Minister. Quyết định 768/QĐ-TTg, Điều chỉnh Quy hoạch phát triển điện lực quốc gia 2021 to 2030, tầm nhìn 2050. 15 Apr 2025
  69. NGF-31 Nông nghiệp và Môi trường. Nhiên liệu xanh đưa nông nghiệp vào chuỗi giá trị mới. 30 Jun 2026
  70. NGF-32 Tạp chí Công Thương. Bài toán nguyên liệu cho sản xuất cồn ethanol. 29 Mar 2017
  71. NGF-06 Chen, X., Shekiro, J., Pschorn, T. and others. Techno-economic analysis of the deacetylation and disk refining process. 2015
  72. NGF-07 Ou, L., Dou, C., Yu, J.H. and others. Techno-economic analysis of sugar production from lignocellulosic biomass with utilization of hemicellulose and lignin for high-value co-products. 2021
  73. NGF-10 Informist Media. Govt's 2G ethanol plans in limbo as sole IOC Panipat plant lies inactive. 27 Nov 2024
  74. NGF-11 ChiniMandi. India's first 2G ethanol plant at Panipat costs INR 984 crore, government tells Lok Sabha. 2026
  75. NGF-33 C&EN. Clariant is latest firm to pull out of cellulosic ethanol. December 2023
  76. FS-03 Nông nghiệp và Môi trường. Bã sắn cứu cánh ngành chế biến tinh bột sắn. 17 December 2024
  77. FS-05 Phommakod, S., Lueangwattanapong, K., Chaiprasert, P., & Songkasiri, W. Valorization of biomaterial side streams: Kinetics of cassava pulp and its components degradation by Clostridium manihotivorum CT4T. 2026
  78. FS-06 Lerdlattaporn, R., Phalakornkule, C., Trakulvichean, S., & Songkasiri, W. Implementing circular economy concept by converting cassava pulp and wastewater to biogas for sustainable production in starch industry. 2021
  79. NGF-25 Zhu, W., Lestander, T.A., Orberg, H. and others. Cassava stems: a new resource to increase food and fuel production. 2015
  80. NGF-26 Wei, M., Zhu, W., Xie, H., Lestander, T.A., Xiong, S.. Cassava stem wastes as potential feedstock for fuel ethanol production: a basic parameter study. 2015
  81. NGF-27 Kaewwinud, N., Khokhajaikiat, P., Boonma, A.. Effect of moisture and region of cut on cassava stalk properties in biomass applications. 2017
  82. FS-37 Sharma, A., Prakash, B., & Sachan, A. Inter- and intra-sectoral linkages and priorities for transforming sugar sector of India. 2015
  83. IND-22 Sugarcane Research Institute. Xang E10 tao cu hich cho ethanol, Duong Quang Ngai (QNS) don co hoi lon. 16 July 2026
  84. NGF-24 Lerdlattaporn, R., Phalakornkule, C., Trakulvichean, S. and others. Implementing Circular Economy Concept by Converting Cassava Pulp and Wastewater to Biogas for Sustainable Production in Starch Industry. 2020
  85. NGF-29 Prayitno, P., Rulianah, S.. Production of biogas using AnF2B reactor from cassava starch wastewater with consortium bacteria as biocatalyst. 2022
  86. FS-04 Ministry of Industry and Trade. Tận dụng phế thải công nghiệp chế biến tinh bột sắn tạo sản phẩm giá trị gia tăng cao. 24 March 2021
  87. FS-24 USDA FAS. Vietnam: Oilseeds and Products Annual. 15 April 2026
  88. FS-38 Pejin, J., Radosavljević, M., Grujić, O., et al. Possible application of brewer's spent grain in biotechnology. 2013
  89. FS-44 Szulc, J., Błaszak, B., Wenda-Piesik, A., et al. Zero waste technology of soybeans processing. 2023
  90. NGF-28 Ngan, D.T.M., Ghi, T.N., Tien, H.V.. Drivers of Food Waste Habits at Household Level in Vietnam. 2024
  91. MAC-12 VnEconomy. Chan nuoi Viet Nam 2025: Tang truong 4,5%, nguon cung Tet 2026 doi dao. 2025
  92. FTG-25 Cartin-Caballero, C., Collet, C., Gapes, D.J., et al.. Simultaneous co-cultivation of the thermoacidophilic methanotroph, Methylacidiphilum sp. RTK17.1, and the microalga, Galdieria sp. RTK37.1, for single cell protein production. 2025
  93. NGF-17 AgFunderNews. Enifer to make mycoprotein in Brazil from corn ethanol side streams. 3 Jun 2025
  94. NGF-13 Meng, J., Liu, S., Gao, L., Hong, K., Liu, S., Wu, X.. Economical production of Pichia pastoris single cell protein from methanol at industrial pilot scale. 2023
  95. FTG-16 Prime Minister. Quyết định 165/QĐ-TTg năm 2024 phê duyệt Chiến lược phát triển năng lượng hydrogen của Việt Nam đến năm 2030, tầm nhìn đến năm 2050. 7 Feb 2024
  96. NGF-14 European Union. Regulation (EC) No 767/2009 on the placing on the market and use of feed, consolidated text of 26 Dec 2018, Annex III Chapter 1 and footnote 9. 26 Dec 2018
  97. NGF-30 Ninh Binh rural development coordination office. Sử dụng thức ăn thừa để chăn nuôi lợn, nguy cơ lây lan dịch bệnh cao. 31 May 2019
  98. NGF-08 Baral, P., Munagala, M., Shastri, Y., Kumar, V., Agrawal, D.. Cost reduction approaches for fermentable sugar production from sugarcane bagasse and its impact on techno-economics and the environment. 2021
  99. ECF-25 Lansche J., Awiszus S., Latif S., Müller J.. Potential of biogas production from processing residues to reduce environmental impacts from cassava starch and crisp production: a case study from Malaysia. 2020
  100. NGF-35 van der Kley, D.. China publishes model project list for Non-Grain Bio-based Materials Industry. January 2026
  101. NGF-20 Prime Minister. Decision 1177/QD-TTg (30 Jun 2026) adjusting the national land use plan, re-read for the changes in agricultural and non-agricultural land against Resolution 39/2021. 30 Jun 2026
  102. NGF-18 National Statistics Office. Chuyển đổi cơ cấu cây trồng trên đất lúa vụ đông xuân năm 2026: những kết quả tích cực. 9 Apr 2026
  103. NGF-19 Báo Chính phủ. Quy định mới về chuyển đổi cơ cấu cây trồng, vật nuôi trên đất trồng lúa (Decree 112/2024/ND-CP). 12 Sep 2024
  104. QNT-01 OECD and FAO. OECD-FAO Agricultural Outlook 2026-2035, data via the OECD SDMX API, dataflow OECD.TAD.ATM DSD_AGR@DF_OUTLOOK_2026_2035 version 1.1. June 2026
  105. FS-34 TTWTO VCCI. Ngành mía đường Việt Nam bứt phá, dẫn đầu ASEAN về năng suất. 15 November 2024
  106. NGF-21 Islam, M.R., Garcia, S.C., Sarker, N.R., Islam, M.A., Clark, C.E.F.. Napier grass (Pennisetum purpureum Schum) management strategies for dairy and meat production in the tropics and subtropics: yield and nutritive value. 2023
  107. NGF-22 Devlamynck, R., Fernandes de Souza, M., Michels, E. and others. Agronomic and Environmental Performance of Lemna minor Cultivated on Agricultural Wastewater Streams: A Practical Approach. 2021
  108. SCI-36 Salian A et al. Lemnaceae as a poultry feed supplement: a review. 2026
  109. SCI-37 Pagliuso D et al. Duckweeds as Promising Food Feedstocks Globally. 2022
  110. FTG-30 Janssen, M., Wijffels, R.H., Barbosa, M.J.. Microalgae based production of single-cell protein. 2022
  111. QNT-09 Leger, D., Matassa, S., Noor, E., Shepon, A., Milo, R. and Bar-Even, A.. Photovoltaic-driven microbial protein production can use land and sunlight more efficiently than conventional crops. 2021
  112. AQF-33 Hasan, M.R.. Transition from low-value fish to compound feeds in marine cage farming in Asia. 2012
  113. NGF-37 Nguyen, T.H., Doan, Q.V., Khan, A. and others. The potential of agricultural and livestock wastes as a source of biogas in Vietnam: energetic, economic and environmental evaluation. 2024
  114. NGF-09 Benova, D., Mares, K., Hutla, P. and others. Energy Potential of Agri Residual Biomass in Southeast Asia with the Focus on Vietnam. 2021