Selling UCO into Singapore: Neste’s refinery and the regional hub

One refinery, most of the story

Singapore does not consume used cooking oil as a food-sector commodity at the scale implied by import statistics. What the city-state provides is location, port infrastructure and a single very large renewable products plant that has shaped regional trade flows for more than a decade.

Neste opened its Singapore refinery in Tuas in 2010 as a renewable diesel site. Company messaging since then has been consistent: the plant makes renewable products, not conventional fuels blended on the side. That matters when you read procurement specifications. The buyer is a hydrotreater optimised for waste and residue lipids, not a generic oleochemical buyer tolerating wide variance.

After the expansion that started operating in April 2023, Neste states total capacity at 2.6 million tonnes a year, including up to 1 million tonnes of SAF, and adds processing flexibility for more challenging waste and residue raw materials. Capacity figures describe the refinery’s potential output mix; they are not a public tender volume for UCO. They do explain why cargoes from China, Malaysia and Indonesia routinely appear in customs summaries with Singapore as destination.

Neste’s feedstock philosophy

Neste reports that waste and residues account for more than 90% of its renewable raw material inputs globally. UCO is one stream among several — animal fats, technical corn oil, other wastes — but it is the stream most exporters in Asia actually hold.

The 2023 expansion was not only about tonnes on the nameplate. Neste publicly linked it to handling harder materials, which in practice translates into tighter attention to contaminants, consistency of supply and documentary proof that the declared material matches the physical sample.

Singapore-produced renewable diesel and SAF are sold into Europe, North America and Asia-Pacific markets. A seller in Southeast Asia is therefore feeding a plant whose output may later be judged under EU RED rules, CORSIA for aviation, or national schemes elsewhere. That is why a Singapore-bound lot often carries more than one certification conversation in the same email thread.

Why Asian exporters route through Singapore

Geography is blunt. Singapore sits on major shipping lanes out of China and the Strait of Malacca. For UCO collected in coastal provinces or aggregated for export in flexitanks, a direct call or transshipment through Singapore is often cheaper and faster than sending everything to Europe on the first leg.

Chinese customs data reported by trade press show about 31,100 tonnes of Chinese UCO shipped to Singapore in May 2026, with Singapore listed among the main destinations in 2026 alongside the United States, the Netherlands and Italy. May is one month; the pattern is the point. Singapore is a structural outlet, not an anecdotal discharge.

Competition for Neste’s attention is real. Other renewable fuel projects in Asia will pull on the same pools of UCO over time. What keeps a supplier in rotation is repeatable quality and a file that does not change shape every shipment — the same collecting points, the same scope on certificates, inspection habits that match what the buyer’s auditors expect.

Certification: EU, CORSIA and the lot boundary

ISCC EU is the scheme most often named when the end use touches European renewable fuel markets. ISCC CORSIA enters the conversation when the material pathway includes sustainable aviation fuel and aviation customer requirements. They are related but not identical; scope, material type and issuing operator must match the lot.

Certificates belong to legal entities and activities, with valid-from and valid-to dates. A collecting point certificate does not cover a trader unless the trader holds its own scope. A sustainability declaration must correspond to the quantity shipped, the dispatch period and the chain of custody events the scheme allows.

Turco & Co trades UCO from Dubai and reviews scheme evidence when a buyer requires it. We do not describe the desk as ISCC-certified; we check that the operators who handled the oil were certified for the activity they performed and that declarations were issued by the party entitled to issue them. Passing along a PDF without that check is how disputes start at discharge.

Quality, inspection and hydrotreating reality

Neste’s process is hydrotreating. Free fatty acids, moisture, impurities and volatiles still matter because they drive pretreatment cost, but they are not the whole story. Phosphorus, metals and other catalyst poisons show up in buyer specs and in internal refinery limits. A certificate of analysis must come from the tank or container that was loaded, with sample identifiers that match the inspection report.

Independent inspection at loading is the norm for refinery programmes. The surveyor samples, seals and documents quantity. Those seal numbers should match the bill of lading and the packing list. If the oil is in flexitanks inside twenty-foot containers, the inspection scope should say so explicitly; a report written for bulk vessel loading is a poor fit for a container file.

Origin records should connect the lot to restaurants, food processors or other points of generation through self-declarations or national systems where they exist. Weak origin stories are a bigger risk in Asia than in mature EU collection markets. Neste’s global waste-and-residue share does not relax traceability; it raises the cost of getting caught without it.

• ISCC EU evidence where the sales pathway requires RED compliance
• ISCC CORSIA evidence where SAF or aviation customers require it
• Lot-specific COA with hydrotreating contaminants as per contract
• Independent inspection report at loading with seal numbers
• Sustainability declarations matching quantity and dispatch dates
• Origin records back to collecting points

How contracts are usually structured

Large refinery buyers typically run approved supplier programmes with periodic audits, trial loads and renewal cycles. Spot cargoes happen, but the default is relationship supply with fixed specifications and document templates. Traders participate by aggregating documented parcels from certified collecting points and presenting a single commercial counterparty to the seller.

Incoterms vary by programme. Some purchases are FOB at a Chinese or Malaysian port; others are CIF Singapore. The basis must name the place precisely and say who books freight, who insures and where risk passes. Singapore is a destination port, not a vague region.

Payment follows the paper. Letters of credit and documentary collections still appear in this trade. Banks read the bill of lading against the credit text, not against a verbal promise from a broker. Sellers should align inspection clauses, certificate wording and latest shipment dates before containers are booked.

Turco & Co aggregates documented lots that meet buyer requirements for destinations including Singapore. We are a trading desk, not the certification body and not the receiver at Tuas. Our role is to match physical supply with a file that fits Neste-style procurement — without inventing certificates the supply chain cannot support.

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.

• Neste — Singapore refinery
• Fastmarkets — China’s May 2026 UCO exports (GACC customs data) · Secondary source — medium confidence
• ISCC — Certificate register

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