Used cooking oil
A circular feedstock collected through documented agreements, controlled containers, sampling, pre-treatment and chain-of-custody records.
The Crostar platform
From feedstock evidence to qualified markets.
A modular operating model combining responsible supply, processing, quality systems, circular co-products and digital traceability.
Responsible feedstock hierarchy
Diversified by design, disciplined by evidence.
Crostar avoids dependence on one crop. Supply is developed in a sequence that prioritises waste recovery and co-products before dedicated energy crops.
Cottonseed
A strategic co-product of Labl Farms’ cotton value chain, creating additional value without requiring a separate energy-only land allocation.
Croton
An existing landscape resource whose commercial use depends on sustainable harvesting, aggregation economics and traceable collection.
Castor
A non-food oilseed opportunity for suitable dryland systems, subject to safe handling, verified varieties, yields and farmer economics.
Canola / rapeseed
Considered where climate, rotation, seed availability, food-market competition and buyer demand support responsible production.
Jatropha
Maintained as a controlled research and diversification option until multi-season agronomic and commercial evidence supports any expansion.
Farmer supply model
Transparent procurement, not speculative promises.
- Supplier registration and point-of-origin records.
- Written crop or supply specifications and commercial terms.
- Extension coordination led with Labl Farms and specialist partners.
- Quality checks, documented acceptance or rejection and transparent grading.
- Agreed payment processes and grievance resolution.
- No automatic obligation for farmers to supply Crostar and no automatic obligation for Crostar to purchase material outside approved terms.
Mavueni pilot and commercial nucleus
Processing designed around quality-by-design.
The pilot facility will test technical, logistical and economic performance before full-scale commercial expansion.
Receive & qualify
Supplier verification, weighing, sampling, moisture and impurity checks, batch coding and controlled storage.
Prepare & extract
Cleaning, drying, conditioning and mechanical pressing for approved oilseed feedstocks.
Pre-treat & validate
UCO filtration and pre-treatment, oil characterisation, laboratory testing and controlled pilot conversion where licensed.
Release & utilise
Specification review, storage, buyer sampling, logistics and responsible co-product management.
Product and market pathways
Multiple outputs, each governed by specifications.
Crude vegetable oils
Qualified oils for industrial or renewable-fuel applications, depending on tested composition and buyer requirements.
Pre-treated feedstock oils
Filtered and conditioned oils for downstream processors, subject to customer-specific parameters.
Biodiesel pilot batches
Controlled trials only where licensing, standards, safety systems and product testing are in place.
Seed cake and residues
Co-products evaluated for safe industrial, agricultural or energy applications; toxic feedstocks are never represented as animal feed.
Glycerol and other co-products
Recovery and market development follow quality, safety, environmental and commercial feasibility.
Traceability services
Supplier, batch, mass-balance and sustainability evidence supporting qualified transactions and partnerships.
Crostar Energy Operating System
A digital control layer developed through AfriEuro Links.
CEOS is designed to connect supplier identity, farm or collection-point records, contracts, deliveries, laboratory data, inventory, payments, safeguards and buyer reports. It is an operational governance system—not a promotional database.
Supplier & originRegistration, contacts, location, organisation and qualification status.
ContractingApproved terms, pricing basis, amendments and grievance records.
Delivery & qualityWeights, moisture, impurities, tests, acceptance and rejection.
Inventory & mass balanceLot identity, storage movement, process input/output and losses.
PaymentsApproved payables, deductions, payment status and exceptions.
SustainabilityLand history, labour, biodiversity, waste, GHG and corrective actions.
Supply or buy
Connect to the Crostar platform.
We welcome qualified feedstock suppliers, UCO partners, laboratories, technology providers, downstream processors and buyers.
Discuss a commercial pathway