Estuário de Iguape
Circular Economy · Environmental Recovery · ESG

S.O.S. Bio

An environmental liability transformed into premium organic biofertilizer for Brazilian agribusiness.

Meandros do Rio Ribeira
01 · Iguape

Natural World Heritage Site

The Ribeira Valley harbors the largest continuous remnant of the Atlantic Forest in Brazil. It comprises 360 kilometers of rivers flowing into the Iguape-Cananéia estuarine-lagoon complex — recognized by UNESCO as a Natural World Heritage Site and Biosphere Reserve.

A region that is home to quilombola, caiçara and riverine communities, whose cultural identity was forged over centuries through their intimate relationship with the rivers. Artisanal fishing — especially manjuba — sustains entire generations. The rivers are life, food, pathway and identity.

360
km of rivers
River network
O estuário compõe-se de 360 km of rivers com larguras médias de 50m, formando um dos maiores complexos hídricos do litoral paulista.
1534
founded
Historic
One of the oldest cities in Brazil, with colonial architectural heritage preserved for nearly 500 years.
UNESCO
heritage
Global
Natural World Heritage Site and Atlantic Forest Biosphere Reserve.
21 mil
km²
Ribeira Valley
Quilombola, caiçara and riverine communities that depend on the rivers for fishing, transport and agriculture.
Pescador artesanal
People of the River
"Artisanal fishing sustains entire generations. Families who live from fishing find themselves increasingly cornered, abandoning activities passed down from parents to children for generations."
Riverine communities of Iguape · Manjuba fishing · Caiçara tradition

With the despair of flooding, the riverine community becomes isolated and without livelihood. The fishing area shrinks every day, compromising the subsistence of hundreds of families who depend on this activity.

120+
direct jobs
The project will generate 120 jobs, with preference for local labor. 80 daytime, 40 nighttime.
500+
families benefited
Recovery of navigability, elimination of floods and reconnection of isolated communities.
Artisanal fishing
Basilica
Lagamar
Manjuba
Viewpoint
02 · The Alert

An Ecosystem Suffocated

Imagine 360 kilometers of rivers suffocated. Covered by a dense green carpet of invasive plants. No light. No oxygen. No life. This is the devastating reality of the Iguape River Estuary.

One of Brazil's richest regions in biodiversity is dying before our eyes. Every day without action, more life is lost. More communities suffer. More greenhouse gases are emitted. The window of opportunity to save this ecosystem is closing.

18M
m² blocked
70% of river surface covered by 5 macrophyte species with roots over 5 meters below water level.
81M
toneladas
Average weight of 4.5 ton/m². Total of 81 million tons of macrophytes to be removed from the entire estuary.
17M
m³ of sludge
Layers 3 to 5 meters deep accumulated on riverbeds over decades, reducing flow and causing floods.
metano
Greenhouse gas multiplier coefficient when macrophytes are deposited in landfills.

Devastating floods

Destroy crops and harm hundreds of farming families

The reduction in river flow caused by macrophytes triggers periodic flooding that devastates farmland and isolates entire communities in the region.

Massive wildlife death

Without sunlight and oxygen, fish and native species die

Macrophyte coverage blocks light and oxygen, causing death of aquatic species. Solid banks drift uncontrolled, disrupting artisanal fishing.

Isolated communities

Navigation impossible across the entire region

Riverine communities lose access to services, markets and hospitals. Declining fishing compromises the livelihood of hundreds of families.

Uncontrolled emissions

Methane (CH₄) and CO₂ worsening the greenhouse effect

Decomposing macrophytes release greenhouse gases uncontrollably, with a 7× multiplier when deposited in landfills.
100% covered
Forest vs cropland
Invaded margins

"Imagine crystal-clear rivers where there were once suffocated swamps. Fish returning to the surface. Communities navigating freely. Farmers with crops flourishing in regenerated soils."

This is the future that the SOS-Bio project will create

03 · The Solution

S.O.S. Bio

The SOS-Bio Project is not just another environmental cleanup initiative. It is a complete circular economy system that transforms an environmental liability of 22.8 million tons into renewable wealth for Brazilian agribusiness.

We extract aquatic macrophytes and sludge from rivers — an environmentally mandatory action — and transform them into premium organic biofertilizers rich in NPK and micronutrients, with personalized agronomic consulting. The raw material is abundant, free and its removal simultaneously restores the rivers.

Our Competitive Advantage

Proprietary technology developed over 15 years of in situ research — no equivalent in Brazil. Exclusive environmental licenses (CETESB and DAEE). Buyer market with no significant competition. Strategic partnership with UNESP for scientific validation. Sales team of 6 agronomists with post-sale support.

01

Extraction

100t barges + cranes extract macrophytes and sludge from rivers

02

Transport

By river to Fazenda Pindú (300 ha)

03

Processing

Drying to 20% moisture + centrifuged sludge

04

Sales

Premium biofertilizer + agronomic consulting

Licenses and Permits

CETESB
License nº 93010734 · Registry 3511011335 · Open validity
DAEE
06 Official Publications in 2024 · Surface cleaning and dredging
Licensed
28 km of rivers (980.000 m² = 4.410.000 ton) + 2.520.000 m³ of sludge
Expansion
+60 km requested for approval before end of 2026
Inventory
360 km → 22.7M ton biofertilizers + 11.5M ton dry sludge · 20-year regeneration
Operational Base

Fazenda Pindú

300 hectares strategically positioned at the heart of the estuary. 100 ha for facilities. Owned by the partners, with infrastructure ready for immediate operation.

300 ha
Total area
8 springs, 2 lagoons. Owned by partners.
1 km
To the rivers
Direct access with ready path.
8
Springs
Independent water supply.
4 km
Iguape
70% paved. Easy logistics.
Aerial view · Fazenda Pindú
Farm with coastline in background
04 · The Product

Proven Nutritional Value

The macrophytes and sludge are clean and uncontaminated. Analyses by UNESP Diagnose (2024-2025) confirm exceptional nutritional richness. The organic fertilizers act as biological NPK fixers, strengthen soil nutrients for longer, retain moisture and improve soil workability.

Macrophytes — Composition (g)

Fe
679
Mn
239
Zn
109
N
22
K
20
P
4,2

Lodo: C=94 · P=53 · K=2 · Ca=24 · Mg=17 · S-SO₄=87 · Fe=201 · Fonte: UNESP Diagnose 2024-2025

R$ 650
/ton cost
Free raw material. Mandatory river removal. Highly competitive cost.
R$ 900–1.800
/ton sale
Always below competition. Grows from R$ 900 (month 4) to R$ 1,800 (month 17+).
5.740
ton/month
Stabilized production: 4,640t dry macrophytes + 1,100t sludge (month 11+).
22,7M
ton inventory
Abundant and renewable. Macrophytes regenerate mass in 20 years. Long-term operation.
05 · The Market

Brazil needs biofertilizers

Brazil is the world's largest buyer of fertilizers — and imports 85% of what it consumes. Over 41 million tons per year at a cost of US$ 25 billion. This dependency is unsustainable and creates an unprecedented strategic opportunity for domestic organic biofertilizer production.

The biofertilizer market grows 4 times faster than conventional, driven by the new Bioinputs Law (Law 15.070/2024) — making Brazil the first country with specific bioinputs regulation. There are 40 million hectares of degraded soils awaiting a solution.

85%
Imported
Brazil spends US$ 25 bn/year importing mineral fertilizers.
22%
Growth p.a.
Biofertilizers grow 22% p.a. vs 5.9% conventional.
R$ 50 bi
by 2030
Brazilian bioinputs market projection.
Lei 15.070
2024
1st country with specific bioinputs legislation.
40M ha
Degraded
Abandoned soils — enormous and unexplored market potential.
US$ 25 bi
Import/year
Strategic opportunity for local production.
06 · The Business

Return Projection

Required Investment

R$ 20.000.000

In partial tranches over 18 months

R$ 388M
Revenue 3 years
Year 1: R$ 55.5M · Year 2: R$ 156.7M · Year 3: R$ 176.7M. Stabilized monthly: R$ 14.7M.
R$ 187M
Accumulated profit
After 8% tax. Balance at month 36: R$ 191.2 million.
~18
months payback
Capital return between 18 and 24 months. Sustainable operation for 25+ years.
R$ 120M
Valuation
Conservative (biofertilizers). IRR: 126.9% p.a. ROI: 1,164% in 36 months.

"Financial return and environmental impact go hand in hand. Every real invested has contractually defined date, term and form of return."

View Full Business Details →
Join us

The future of Iguape's rivers is in our hands

You are not just investing in a project. You are becoming part of a mission that unites purpose and profit, environmental impact and financial return, responsibility and prosperity.

Come see the estuary in person. Navigate the rivers we will restore. Meet the team, the technology, the licenses. Talk to farmers eager to use our products.

Contact

Victor Hugo Salazar

Chief Administrative and Financial Officer

(13) 99102-7306

salazar.victorhugo@gmail.com