Forward Looking StatementsThe statements contained herein, which are not historical, are forward-looking statements that are subject to risks and uncertainties that could cause actual results to differ materially from those expressed in the forward-looking statements, including, but not limited to, the risks and uncertainties included in BioLargo’s current and future filings with the Securities and Exchange Commission, including those set forth in BioLargo’s Annual Report on Form 10-K for the year ended December 31, 2015.

Science & Technology

Water – Air – Food – Plants – Animals – People

Making them Clean Safe & Healthy

Impacting the World

Sustainable Water Technologies Nature Shows Us the Way!

Natural Iodine Cycle

About BioLargo

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Industrial & consumer products

Water disinfection / dosing

Water disinfection & decontamination

Wound care & disinfection

Recent Highlights

Industrial Odor Control- Wins Key Accounts and Sales and Manufacturing Ramping

AOS Filter is Lowest Cost & Highest Impact Clean Water Technology- Innovation Leader – First Commercial Prototype Delivered August 2016 – Maritime Venture Shaping Up – Key Relationship Established with CB&I

Wound Care – Funded –Targeting 2017 FDA 510k - Isan Dosing System EPA approved summer 2016

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Collaborations, Grants, Awards (17 grants awarded and counting)

New Relationships

5*2017 Grant Awarded: MWD, US Bureau of Reclamation, US EPA, Central Arizona Project, Southern NV Water Authority, SoCal Gas

Important New Relationships

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“All of our technologies at BioLargo can serve a wide array of industrial customers that want clean water and clean air. Our mission to ‘Make Life Better’ includes helping industry tackle operational challenges cost effectively. That intersection of service is likely where our new relationship with CB&I will shine the brightest and we look forward to working with the exceptional team at CB&I to serve industry.”

AOS Can Impact Every Segment of the Global Water Market

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AOS - Targeting high-value needs

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Poultry & Food

Processing

• Pathogen Control• Water Conservation

Agriculture• Drinking water & recycle & nutrient /

resource recovery

Maritime • Ballast water & invasive species, low power

Oil and Gas• Water disposal &

recycle

Pick a lane to WIN!

Technology Gap

http://www.lenntech.com/systems/uv/uv_disinfection.htmhttp://www.lenntech.com/systems/ozone/ocs/ozone-ocs.htm

• Current water treatment options have one or more of these problems:

• Very expensive (CAPEX)• High power consumption (OPEX)• Narrow-range (miss some contaminants)• Can create toxic by-products

UV disinfectionOzonation

http://filterdirect.com/ReverseOsmosisHomeSystems.html

Reverse Osmosis

BIOLARGO’s AOS FILTER Converts a filter into a powerful reactor to manage and remove harmful contaminants

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A SCALABLE WATER TECHNOLOGY

The BioLargo Advanced Oxidation System (AOS) Filter

HOW IT WORKS

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“Unprecedented Results”*Professor Lynn McMullen, University of Alberta

Carbon Iodine Chemistry Electricity *Extremely HighOxidation Potential

Unique Value propositionWhen compared to all known competing technologies, BioLargo’s AOS filter has been proven in hundreds of lab tests at the University of Alberta to be:

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up to 100x more

effective

1/20th the cost

up to 100x more effective 1/20th the cost 10x faster

Water Treatment Test Results

Contaminant Value propositionOrganic contaminantsNaphthenic acids • > 10x faster and magnitudes less

costly• tested to match removal rate of best-

in-class technologiesPolyaromatic hydrocarbonsBacterial and viral contaminantsEscherichia coli • 6 logs reduction (99.9999%)

inactivation• 1/20th cost of energy of best-in-

class competitors• 100x efficacy of best-in-class

poultry water treatment

Salmonella enterica

Listeria monocytogenes

Bacteriophage T4 (virus surrogate)

4 logs (99.99%)

http://www.wales.nhs.uk/sitesplus/888/page/43751

http://www.gov.mb.ca/health/publichealth/diseases/escherichia_coli.htmlhttp://listeria-monocytogenes.com/

• The following table shows treatment value of select contaminants• Ongoing research to prove others

Technology Key performance metrics

Approximate Operating Cost ($USD/1,000 gallons)

Approximate Capital Cost ($USD)

AOS Filter •Cost-effectiveness•6+ log disinfection•Easy to operate•Non-toxic effluent compounds

0.00863 114,000

Chlorination •4 log reduction•Toxic off-gases

1.297 164,000150x AOS OPEX 1.4x AOS CAPEX

UV-Oxidation •3-4 log reduction•Less effective with turbid water•Possible mercury hazard

0.259 281,000

30x AOS OPEX 2.46x AOS CAPEX

Ozonation •3-to-6 log reduction•Complex technology •Generation of toxic off-gases that must be destroyed. •Less economical at high organic content waters

1.582 342,000

183x AOS OPEX 3x AOS CAPEX

Disinfection Competitive Analysis

Additional targets planned for AOS• Heavy metals• BTEX compounds• 1,4-dioxane• Fertilizers (nitrates & phosphorus)• Hormones (endocrine disruptors)• Algal toxins• Any Gram-negative bacteria• Any Gram-positive bacteria• Viruses such as Norovirus, Hepatitis A, etc.

Significant ongoing research to demonstrate AOS efficacy vs. these• Time and money

Foundational science infrastructure includes 10+ researchers on BioLargo staff located at Agri-Food Discovery Place to support US Expansion.

BioLargo Technology and Commercial Development Cycle

Advanced Oxidation System (AOS)

Generation I Generation II

• Low pressure• Low energy• Modular

• Ultra-high flow rate

• Low energy

Phase I

Phase II

Phase III

Disinfection research

Decontamination research

Solute harvest

Important Opportunities for Impact Biosecurity Food Safety Shelf-life Extension Nosocomial Infection Control

Assets built to license:Advanced wound care

Financing Secured Proof of Efficacy AccomplishedPathway to Success is clear for $1B+ opportunity• 510k pathway – experts contracted & underway

Manufacturing, Formulation, Packaging, Labeling, Regulatory Proven Leadership TeamLiquids, Hydrogels & DressingsHigh Profit Margins

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Cupridyne cleanIndustrial Odor Control

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Unprecedented performance Large highly fragmented industryDissatisfied with old productsOdor control a top priority Free trial & satisfaction guarantee Sales network activatingKey accounts LOVE IT!

Poultry Biosecurity SolutionsAqueous Iodine Sanitation Systems

iSAN® Systems

• Specifications• Capacity: up to 750 gallons per minute at

recommended poultry dosing levels.• Ability to capture all sanitation byproducts through

proprietary anion exchange capture resin system.• Full data logging and audit capability.• 24x7 remote monitoring.• User-friendly, touch screen HMI.• Can be enclosed or unenclosed.

Key benchmarks aheadSuccessful Commercial Scale Pilots Expanded Grants / CollaborationsEstablish strategic partnershipsExpand Existing OrdersFortify the Management TeamExtend Marketing and Sales Target Up-List

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Company Contact:

Dennis Calvert President & CEOBioLargo, Inc.(949) 643-9540dc@biolargo.com www.biolargo.com