Selling UCO into Spain: HVO and SAF demand, buyers and import data

Why Spain matters for UCO: HVO, SAF and refinery scale

Spain is often described as Europe’s second door for used cooking oil, and the reason is not Mediterranean cuisine alone. Large refiners have bet on hydrotreated vegetable oil and sustainable aviation fuel, which prefer waste feedstocks when documentation is solid. Repsol started large-scale renewable fuel production in Cartagena in 2024. The unit processes 300,000 tonnes a year of organic waste such as used cooking oil to make 250,000 tonnes of HVO and SAF, prioritising residues of national and European origin, and Repsol announced a second unit in Puertollano.

That scale changes how sellers should read Spanish demand. A plant that ingests hundreds of thousands of tonnes of waste lipids runs continuous pretreatment and compliance teams. Spot offers with incomplete ISCC files may find a home in smaller biodiesel units, but refinery programmes tend to standardise on checklists—certificate register entries, sustainability declarations, inspection, metals and phosphorus where hydrotreating requires them.

ECODES, analysing official Spanish data, estimates that about 616,000 tonnes of UCO were used for biofuels in 2024 and that UCO accounted for 28% of biofuel feedstocks, with imports mainly from China, Malaysia and Indonesia. Domestic collection exists, but the NGO’s reading of official statistics underscores import dependence. Sellers from Asia therefore meet Spanish buyers often, sometimes after a first discharge in ARA, sometimes direct to southern ports.

Import volumes: what Argus reports for Spain

EU customs data summarised by Argus show Spain importing 63,600 tonnes of HS 1518 oils in April 2026, about 28% of the extra-EU total, and roughly 236,000 tonnes over January–April. The Netherlands absorbed the largest share in the same periods. Interpreting HS 1518 requires care: the heading covers several animal and vegetable oils, and customs lines do not always separate UCO from every other product in the basket. Still, the split between the Netherlands and Spain matches what traders see on the water—north-west European hub traffic plus Mediterranean refinery pull.

For an exporter, the monthly share is less important than the trend across a quarter. A single April figure can reflect vessel scheduling, not a permanent market shift. Spanish buyers neverthelss use these statistics internally when they argue for supply security and when they plan intake at Cartagena, Puertollano or smaller plants.

If you contract for Spain, ask whether the buyer measures intake by calendar month, by production campaign, or by sustainability period. Misaligned dates create UDB reconciliation headaches even when the physical oil arrived on time.

Ports, corridors and where cargoes actually land

Southern Spanish ports receive many Asian cargoes destined for refineries in Andalusia and Murcia. Cartagena is both a city and a industrial cluster; discharge planning must name the port, the terminal or plant gate, and who arranges heating and pumping if the cargo arrives in flexitanks. Sellers who only write “Spain CIF” on a term sheet invite a later argument about demurrage and sustainability transfer point.

Some flows enter the EU through the Netherlands and move south by barge or truck; others sail direct to the Mediterranean. The sustainability declaration and the bill of lading must tell the same story about country of dispatch and receiving installation. Spanish compliance teams are used to tracing re-exported parcels; gaps between hub storage and final plant delivery show up quickly in audits.

Independent inspection at the loading port—whether in China, Malaysia or Indonesia—remains the common denominator. Spanish buyers may accept a surveyor they know from ARA programmes, but they rarely waive inspection entirely for new suppliers.

What Spanish buyers require in the sustainability file

Spanish producers report under the EU Renewable Energy Directive and the national sustainability verification system. Repsol, for example, states ISCC EU certification for its renewable fuel activities. Expect requests for ISCC EU evidence along the chain, sustainability declarations per lot, Union Database entries where applicable, lot-specific certificates of analysis, and inspection reports. Repsol’s public emphasis on national and European residues does not mean Asian UCO is unwelcome; it means origin records must be defensible under audit intensity.

Hydrotreating units worry about contaminants that a biodiesel plant might tolerate differently—phosphorus, metals, chlorides depending on the spec sheet. Send the buyer’s full parameter list before you sample the export tank. A COA that only lists FFA and MIU saves time at origin and loses time at destination.

Traders supplying Spanish refineries aggregate documented lots that meet those programmes. Turco & Co reviews certificates and declarations in the ISCC database and aligns commercial documents with the physical chain; it does not claim ISCC certification for the desk itself. If a intermediary offers Spanish refinery access for a registration fee, treat that as a fraud signal unrelated to how real refinery procurement works.

• ISCC EU chain of custody from the collecting point, verified in the register
• Sustainability declaration and UDB entry per lot where required
• Lot-specific COA including hydrotreating parameters if requested
• Independent inspection at loading with seal record
• Discharge port and receiving installation named in the contract
• EU Regulation 2025/2181 conditions for cargoes from November 2027

Competing origins: China, Malaysia, Indonesia and domestic collection

ECODES’ reading of official data points to imports mainly from China, Malaysia and Indonesia alongside domestic collection. Each origin carries different export rules and fraud risks. Chinese volumes are large but policy and duty changes move quickly; Malaysian and Indonesian chains face traceability scrutiny described in USDA and industry reports. Spanish buyers increasingly ask for plausibility checks—does this collecting point’s certified volume match the restaurants or food service sources it claims?

Domestic Spanish UCO exists and will matter more as collection schemes mature, but the 616,000-tonne biofuel use figure for 2024 still implies substantial import reliance. Sellers who can show restaurant or food-service self-declarations, delivery notes and mass-balance discipline at the collecting point compete on documentation as much as on FFA.

Do not confuse “European origin preference” in corporate communications with a legal ban on third-country oil. Contract specs and sustainability evidence decide what loads; marketing language does not.

From Puertollano to 2027: capacity and import rules

Repsol’s announced second renewable fuels unit in Puertollano signals that Spanish demand is structural, not a single-plant fad. More capacity means more procurement programmes—and more audits shared across units. Sellers who pass Cartagena’s file review may still face spot checks when Puertollano starts intake.

From 19 November 2027, EU Regulation 2025/2181 adds the approved or registered establishment of origin, filtration to at most 10% moisture and solids, the model importer declaration, and monitored transport to an approved receiving plant. Spanish refineries and storage sites must hold the appropriate approvals; exporters must list loading establishments with their competent authorities in time.

Parallel tracks help: keep ISCC current, prepare establishment listing, and align contract delivery points with plants eligible under the regulation. A cargo that satisfies RED documentation but fails animal by-products import rules stops at the border like any other non-compliant waste oil shipment.

Common questions

Sources and evidence

Primary references support the stated technical definitions. Procurement checklists are editorial guidance, not evidence of a specific lot, shipment or certification.

• Repsol — Large-scale renewable fuels production in Cartagena
• ECODES — Biofuels in Spain (March 2026) · Secondary source — medium confidence
• Argus — EU waste oils imports, April 2026 (EU customs data) · Secondary source — medium confidence
• Commission Regulation (EU) 2025/2181 — Import of used cooking oil

Confirm laboratory methods, commercial terms and applicable requirements with the buyer and qualified advisers before contracting. No guide establishes stock availability or company certification.