KOREAN
Cleaner Skies and Seas with Microalgae Bio-Oil
YEJU BIO OIL is a next-generation climate solution company that leads the sustainable aviation fuel (SAF) and eco-friendly fuel markets by producing microalgae-based CAO in the Buton Industrial Complex, Indonesia.
YEJU BIO OIL Project Overview
120K
Annual CAO Production
Large-scale production capacity in tons to supply the global SAF market
900
Acquired Site
Strategic location of hectares, scalable infrastructure
100%
Eco-friendly Circulation
Integrated solution simultaneously achieving carbon reduction and removal
Microalgae CAO is a new energy and climate investment asset that simultaneously creates decarbonization for aviation and marine fuels and carbon credits. YEJU BIO OIL leverages large-scale microalgae farms within the Buton Industrial Complex in Indonesia to remove carbon through the power of nature and build a sustainable future.
Why Microalgae Bio-Oil Now?
Global Carbon Neutrality Goals
By 2050, the aviation and shipping industries must achieve carbon neutrality. Decarbonizing liquid fuels in long-distance transportation, where electricity or hydrogen cannot replace them, is an essential task.
The International Air Transport Association (IATA) has declared net-zero emissions by 2050, and the International Maritime Organization (IMO) aims to reduce carbon intensity by 40% by 2030.
Strategic Value of Microalgae
Microalgae do not compete with food sources and boast high productivity per unit area without using arable land. They are valued as low-carbon or carbon-neutral fuels because they absorb atmospheric CO₂ during their growth process.
It can be directly applied to Hard-to-Abate Sectors and is the only solution that can simultaneously link carbon absorption and removal (CDR) during the production process.
What is CAO?
Crude Bio-Oil Form
Crude Algae Oil extracted from microalgae, it is a multi-purpose eco-friendly energy source for aviation fuel, marine fuel, and power generation fuel.
Carbon Absorption-Based Production
It produces low-carbon fuel that can offset emissions during use by absorbing CO₂ from the atmosphere during its growth process.
Global Climate Solution
Based on non-food and non-arable land, it is a sustainable next-generation energy asset with mass supply potential.
CAO Production Process
Microalgae Cultivation
Microalgae are cultivated at high density using light and CO₂ in a PBR system.
Oil Extraction
High-purity bio-oil is extracted from cultivated microalgae.
Refinement and Upgrade
Refinement and quality control are performed according to SAF and eco-friendly fuel standards.
Global Supply
Sustainable fuel is supplied to airlines, shipping companies, and energy enterprises.
CAO and Climate Finance Convergence
Dual Value Creation Structure
YEJU BIO OIL's CAO project aims for a Climate Asset structure that considers both Carbon Reduction and Permanent Removal, going beyond mere fuel production.
  • Replacement of fossil fuels and carbon reduction through the use of CAO fuel
  • Conversion of residual materials (DAC) after refining into Biochar for long-term sequestration in deserts, etc.
  • Strengthening investment profitability by simultaneously designing carbon credits and removal credits
This integrated approach is highly valued in the climate finance market, establishing a long-term and stable revenue model.
Nature-Powered Decarbonization
Microalgae CAO is an innovative climate solution that converts carbon into energy through the power of nature. It creates a dual impact by replacing fossil fuels and simultaneously removing atmospheric carbon.
Indonesia Buton Industrial Complex Project
Strategic Location
The Buton Industrial Complex is directly connected to port and logistics infrastructure, facilitating access to global supply chains. It leverages investment incentives and tax benefits from the Indonesian government.
Industrial Synergy
Collaboration with energy, chemical, and logistics companies to build an integrated value chain and maximize operational efficiency.
Scalability
Based on 900 hectares of secured land, future expansion is possible, allowing for the implementation of a phased growth strategy.
Buton Project Scale
The Buton project consists of modules, each 20 hectares in size, with the entire 900-hectare site comprising a total of 45 modules.
1 Module (20 Hectares)
Site Area: 20 Hectares
CAO Production: 120,000 tons/year
CO₂ Reduction: 120,000 tons/year
Total Scale (900 Hectares)
Site Area: 900 Hectares
CAO Production: 5,400,000 tons/year (5.4 million tons/year)
Permanent CO₂ Removal: Annual 5.4 million ~ 7.56 million tons (depending on scenario)

Environmental Impact Scale
  • Offsets annual emissions of approximately 1.17 million to 1.64 million passenger cars
  • Removes approximately 0.8% to 1.1% of Indonesia's national emissions
  • Establishes a megaton-scale carbon removal hub as a single project
This accounts for 10-15% of the global bio-oil supply (estimated at approximately 40 million tons annually), demonstrating the immense scale and global market importance of this single project.
Growth with the Local Community
Revitalizing the Local Economy
YEJU BIO OIL aims to transform the Buton project into more than just a fuel production facility, making it a hub for local economic revitalization and job creation.
  • Establishing a cooperative structure with local government and public enterprises (BUMD)
  • Operating local workforce training and technology transfer programs
  • Creating sustainable jobs and increasing income
Vision for a Green Industrial Cluster
In the long term, we aim to develop Buton into a hub for an eco-friendly industrial ecosystem, establishing a model where the community and environment grow together.
  • Attracting renewable energy, bio-industry, and circular economy companies
  • Investing in education and R&D infrastructure
  • Pursuing a balance between environmental protection and economic development
Towards an Asia-Pacific SAF Hub
The YEJU microalgae farm in Buton is designed as a flagship hub for CAO and SAF in the Asia-Pacific region. By combining large-scale microalgae cultivation, advanced PBR systems, and integration with refineries and shipping routes, we aim to position Buton as a key node in the global decarbonization map.
01
Establishment of Asia-Pacific's Largest CAO Production Base
02
Strategic Partnerships with Global Refiners and Airlines
03
Integrated SAF and Eco-friendly Marine Fuel Supply Chain
04
Completion of Climate Asset Portfolio Linked to Carbon Finance Market
PBR System: Optimal Growth Environment for Microalgae
PBR (Photobioreactor) is a closed-system that precisely controls light, nutrients, and CO₂ supply to cultivate microalgae. Unlike open ponds, it reduces contamination risks and ensures uniform quality and high productivity.
24/7 Optimal Growth
Maintains optimal growth conditions by real-time monitoring and control of temperature, pH, nutrients, and CO₂.
Customized Cultivation Recipes
Adjusts cultivation conditions according to target oil content and quality to produce high-quality CAO.
Modular Scalable Structure
Modular design allows for phased expansion, minimizing investment risks and facilitating maintenance.
Technical Advantages of the PBR System
Advantages over Open Ponds
  • Minimized contamination risk
  • High production density
  • Consistent quality control
  • Reduced impact from season and weather
  • Ensured batch-specific traceability
Quality Control and Certification Compliance
The PBR system is essential quality control infrastructure for international fuel standards and certifications. It automatically records batch-specific production data and quality logs, enabling precise design of SAF blend ratios and fuel characteristics.
We have a data-driven production system in place to respond to future global SAF certification requirements and ensure investor and customer trust through transparent supply chain management.
PBR Cluster Operating System
CO₂ Input
Utilizing captured industrial CO₂ for microalgae growth
Photosynthesis Optimization
Combining natural light and LED illumination to support 24-hour growth
Nutrient Supply
Precisely controlling and supplying essential nutrients such as nitrogen and phosphorus
Harvesting and Extraction
Extracting high-purity oil from grown microalgae
Byproduct Recycling
Converting residual biomass into biochar for carbon sequestration
From CO₂ to CAO
The PBR system is a new type of "biological refinery" that converts carbon and light into high-density energy resources. By capturing atmospheric carbon and converting it into liquid fuel, it simultaneously addresses the climate crisis and achieves energy transition.
Dual Value of Carbon Reduction and Removal
1
Fossil Fuel Replacement
Supplying SAF and eco-friendly marine fuels replaces existing fossil fuels and directly reduces carbon emissions.
2
Carbon Absorption
Microalgae growth absorbs atmospheric CO₂ and fixes it into biomass.
3
Biochar Production
Residuals remaining after oil extraction are pyrolyzed to produce stable biochar.
4
Permanent Sequestration
Biochar is buried in deserts or soil to permanently sequester carbon for hundreds of years or more.
Carbon Credit Creation Mechanism
Reduction Credits
By using CAO-based SAF and eco-friendly fuels, reduction credits can be generated proportional to the reduction in carbon emissions compared to fossil fuels.
Airlines and shipping companies can utilize these credits to comply with regulations and achieve ESG goals, and they are also tradable in voluntary carbon markets.
Removal Credits
Permanent carbon sequestration through biochar generates high-quality Carbon Removal Credits.
Removal credits are recognized as having higher value than reduction credits and are considered a key means to achieve carbon neutrality. YEJU BIO OIL generates transparent and reliable removal credits through verified methodologies.
Harmonious Future of Ocean and Land
Protecting Marine Ecosystems
Microalgae are nature's partners, purifying pollution and absorbing carbon. We protect the marine environment through sustainable cultivation designs that consider local ecosystems.
Non-Arable Land-Based Production
By utilizing non-arable land that does not compete with food production, we simultaneously achieve food security and energy transition.
Blue-Green Industrial Belt
In the long term, we establish a sustainable industrial ecosystem that connects eco-friendly marine and terrestrial industries.
Core Principles of Sustainability
Use of Non-Food Raw Materials
Microalgae are not food crops, thus avoiding conflict with food security and enabling ethical and sustainable energy production.
High Land Use Efficiency
Boasting 10-100 times higher productivity per unit area than plant-based biofuels, microalgae efficiently utilize limited land resources.
Water Recycling System
Through a closed-loop PBR system, water consumption is minimized, and recycling rates are maximized, conserving water resources.
Biodiversity Conservation
We pursue operational methods that coexist harmoniously with local ecosystems, protecting and promoting biodiversity.
Global Partnership Ecosystem
Global Airlines
We support airlines in achieving their carbon neutrality goals through SAF supply agreements and establish long-term offtake partnerships.
Shipping & Logistics
We support the shipping industry in responding to IMO regulations and building sustainable logistics systems by supplying eco-friendly marine fuel.
Climate Investors
We collaborate with carbon finance, climate funds, and ESG investors to design structures that simultaneously achieve investment profitability and climate impact.
SAF Market Outlook and Opportunities
The International Air Transport Association (IATA) predicts that carbon neutrality will only be possible if 65% of aviation fuel is replaced with SAF by 2050. This means that more than 450 million liters of SAF will be needed annually, which is 750 times the current supply. YEJU BIO OIL possesses large-scale production capabilities and scalable infrastructure to meet this explosive increase in demand.
Competitive Advantage and Differentiation Strategy
Strategic Geographical Location
Located in the heart of Asia-Pacific, allowing quick access to the growing aviation and maritime markets.
Proven PBR Technology
Ensures high productivity and quality through the latest PBR system, and pursues continuous technological innovation.
Large-scale Expansion Potential
With 900 hectares of secured land and modular design, production capacity can be rapidly expanded according to demand.
Integrated Value Chain
Manages the entire value chain from production to refining and distribution, maximizing quality and profitability.
Key Value for Investors
25%
Annual Market Growth Rate
The SAF market is expected to grow by over 25% annually until 2030.
80%
Carbon Reduction Efficiency
CAO-based SAF reduces carbon emissions by up to 80% compared to fossil fuels.
3X
Land Productivity
Microalgae can produce over 3 times more oil than palm oil from the same area.
YEJU BIO OIL secures a leading position in the rapidly growing SAF market and offers attractive return opportunities to investors through proven technology and scalable infrastructure.
Risk Management and Mitigation Strategies
Contribution to Sustainable Development Goals (SDGs)
SDG 7: Affordable and Clean Energy
Increase access to affordable and sustainable energy and expand the share of renewable energy.
SDG 8: Decent Work and Economic Growth
Create sustainable jobs in the local community and promote economic growth.
SDG 9: Industry, Innovation, and Infrastructure
Establish advanced biotechnology and sustainable industrial infrastructure.
SDG 13: Climate Action
Provide carbon reduction and removal solutions to address climate change.
SDG 14: Life Below Water
Reduce marine pollution and promote sustainable use of marine resources.
SDG 17: Partnerships for the Goals
Accelerate the achievement of Sustainable Development Goals through global partnerships.
Project Timeline
2025 Q3-Q4: Foundation Laying
Site acquisition completed, permits in progress, partnerships established, detailed design initiated
2026 Q1-Q4: Phase 1 Construction Begins
PBR module installation, infrastructure construction, pilot production line operation
2027: Phase 1 Commercial Production
Achieve annual production of 120,000 tons of CAO, fulfill first SAF supply contract
2028-2029: Phase 2 Expansion
Expand production capacity to over 3,000,000 tons, add biochar production facilities
2030-2035: Phase 3 Completion
Achieve final target of 5,400,000 tons, complete carbon credit portfolio
Financial Highlights
65%
Projected EBITDA Margin
Achieve high profitability through efficient operations and premium pricing.
45%
Carbon Credit Revenue Share
Dual revenue structure from fuel sales and carbon credits.
4~5 years
Projected Payback Period
Recovery based on stable cash flow and long-term contracts.

Detailed financial models, CAPEX/OPEX analysis, and revenue scenarios are available in the investor IR materials. These will be provided after signing a Non-Disclosure Agreement (NDA).
Why Invest in YEJU BIO OIL Now?
1
Explosive Market Growth
The SAF market is projected to grow 25 times by 2030, offering a significant first-mover advantage.
2
Demand Expansion Driven by Regulations
Strong policy support from EU ReFuelEU, US IRA, and Korea's Renewable Energy Obligation System underpins demand.
3
Proven Technology and Infrastructure
This project has already secured the site, verified the technology, and is ready for implementation.
4
Dual Revenue Structure
It generates revenue from fuel sales and carbon credits simultaneously, diversifying risk and increasing profitability.
5
ESG Impact Investment
This investment creates clear environmental and social impact along with financial returns.
Next Steps for Investors & Partners
Customized IR Materials Provided
YEJU BIO OIL provides detailed materials tailored to the needs of investors and strategic partners.
  • Financial Model & Investment Return Analysis
  • Technical White Paper & Detailed Production Process Explanation
  • Carbon Impact Report & Certification Plan
  • SAF & Marine Fuel Market Analysis & Strategy
  • Risk Analysis & Mitigation Measures
All materials are available in Korean and English and will be shared after an NDA is signed.
01
Initial Inquiry & NDA Signing
02
IR Material Review & Q&A
03
Site Visit & Due Diligence
04
Investment or Partnership Negotiation
05
Contract Signing & Project Execution
Building a Sustainable Future with YEJU BIO OIL
Microalgae-based CAO is more than a fuel. It is a climate-positive energy asset that enables sustainable aviation fuel (SAF), green shipping, and carbon removal in a single integrated platform. YEJU BIO OIL is committed to building a scalable, investment-grade CAO supply chain that aligns with global net-zero targets while respecting oceans, land, and local communities.
Key Partners
Indonesian Government Partner
Riau Provincial Government
Buton Industrial Estate Partner
PT KAWASAN INDUSTRI TANJUNG BUTON
Badan Usaha Milik Daerah
Microalgae Production & Operations Partner
Pneumatic Power Solution Partner
Solution Production & Maintenance Partner
Contact Us Today
Company: YEJU BIO OIL Co., Ltd.
Project: Buton Microalgae CAO & SAF Project, Indonesia
Location:
Buton Industrial Estate, Indonesia (Project Site)
Seoul, Republic of Korea (Corporate)
© YEJU BIO OIL Co., Ltd. All Rights Reserved. · Carbon-conscious by design · Clean, simple, and global.