Singapore’s bio-LNG milestone moves the test to delivered volumes

Original research record

What changed? Singapore has received its first internationally certified bio-LNG cargo, according to CNA’s report published at 11:31pm SGT on 9 October. Separately, SLNG’s release dated 9 October says its terminal gained ISCC EU certification for bio-LNG handling. It also started building a third jetty, planned for the second half of 2028. [Cargo report](https://www.channelnewsasia.com/watch/singapore-receives-its-first-internationally-certified-bio-lng-cargo-6446776) [SLNG announcement](https://www.slng.com.sg/press-releases/slng-begins-construction-of-third-jetty)

We connect these milestones with an earlier supply agreement and the rules for tracking certified fuel. Our view is that the next useful evidence is repeat delivery with documents that stay linked to the fuel through each sale. A terminal milestone alone cannot tell us how much certified fuel customers will buy.

Behavioural fingerprint A buyer needs both usable fuel and support for the environmental claim attached to it. ISCC’s guidance allows physical separation or mass balance. Under mass balance, certified and ordinary material may mix, while records keep track of the certified amount. That creates a practical task at each handover: make sure quantities, ownership and documents still match. [ISCC guidance, pages 2 and 14–17](https://www.iscc-system.org/wp-content/uploads/2025/12/ISCC-EU-Mass-Balance-Guidance-Document_Version-1.2_Final_22122025.pdf)

We would watch for repeated orders, delivered quantities and the time taken to settle documentation. Our hypothesis is that reliable documentation could make repeat procurement easier using existing facilities. We have no order-level data showing that paperwork is the main constraint; fuel cost, supply or available ships could matter more.

Historical comparables The Rotterdam–Singapore corridor tested this kind of handover before. MPA reported that Shell supplied 100 tonnes of mass-balanced liquefied biomethane to CMA CGM TIVOLI at Rotterdam on 19 October 2024. The release was published on 28 November 2024 and described a certification pilot. We treat it as evidence that the method was tested in that setting. It does not establish regular deliveries in Singapore. [MPA pilot record](https://www.mpa.gov.sg/media-centre/details/rotterdam-singapore-green-and-digital-shipping-corridor-conducts-end-to-end-sustainability-certification-pilot-for-liquefied-bio-methane-bunkering)

A separate Shell–KIS agreement, announced by Shell on 16 September 2025, targets supply to Singapore customers from 2027 after the fuel is turned back into gas. This is a different use from loading ship fuel. We would track whether that planned supply starts, without treating the new jetty as a required step for this contract. [Shell agreement](https://www.shell.com.sg/about-us/news-and-insights/media/2025-media-releases/shell-biolng-supply-support-singapore-energy-transition.html?linkId=896010971&postid=19215003437)

Evidence graph The chain we would check is: sustainable feedstock, certified fuel, transfer through a terminal, sale to a customer, and the customer’s final claim. ISCC says a biomethane sustainability document must stay linked to ownership of the matching quantity of material. This preserves the certified sustainability claim when fuel is mixed; it does not require each molecule to remain separate. This helps explain why a facility certificate and a completed customer transaction answer different questions. [Ownership and fuel rule](https://contact.iscc-system.org/support/solutions/articles/103000349261-is-it-allowed-to-trade-a-pos-for-biogas-biomethane-without-the-respective-quantity-of-sustainable-ma)

SLNG reports that its new certification covers storage, regasification and send-out, bunkering and trucking. We read this release through indexed primary-source text; the direct page was unavailable. The separate cargo report does not give us the shipment’s full certificate, volume or customer records. We therefore do not claim to have checked its complete chain of custody. [Certified service scope](https://www.slng.com.sg/press-releases/slng-begins-construction-of-third-jetty)

Opposing evidence The expansion also has a conventional LNG purpose. SLNG says the new jetty is planned to support about two million tonnes a year of LNG bunker reload demand. That figure covers LNG and cannot be counted as future bio-LNG sales. More available handling space could matter even if the certified share stays small. [Planned jetty role](https://www.slng.com.sg/press-releases/slng-begins-construction-of-third-jetty)

The accounting rules need equal care. ISCC’s EU guidance calls for consultation with ISCC or the certifier for non-EU cases. We cannot apply its EU gas-grid examples automatically to a Singapore cargo, or assume that this shipment used mass balance. Price premiums, feedstock availability, emissions across the full supply chain and acceptance of the customer’s claim remain unmeasured here. [Geographical limits, page 14](https://www.iscc-system.org/wp-content/uploads/2025/12/ISCC-EU-Mass-Balance-Guidance-Document_Version-1.2_Final_22122025.pdf)

Invalidation Our idea that dependable documentation may help repeat buying would weaken if comparable orders already clear smoothly while price, scarce supply or physical handling consistently blocks deliveries. We would need order records or an independent study to identify the main constraint.

Evidence of scale would be stronger if suppliers publish repeated delivered volumes, matching sustainability documents and a clear customer-use boundary. For a share of bio-LNG, the numerator and total LNG denominator must cover the same place, period and stage of delivery. A larger cargo count alone would not pass this check. Neither would dividing certified fuel sales by a jetty’s future maximum capacity.

Bottom line We would follow three checks separately: what the terminal is certified to handle, what customers actually receive, and how much extra handling capacity becomes operational. The strongest next update would join a delivery record to its sustainability documents and end-user claim.

This is a Singapore supply-chain research signal. We see a reason to examine repeat procurement, but we have no measured adoption forecast, verified emissions-saving total or asset-price call.

Bayesian · what changed the estimate? The new local milestone gives us more reason to investigate whether certified deliveries can become routine. A repeat delivery with complete records would add more than another article about the same event. Published order failures, high price premiums or poor availability would weaken the case. We have no comparable success-rate sample, so we assign no numerical adoption probability.

de Finetti · are the comparisons fair? A terminal certificate, a cargo, a supply contract and a customer claim are different units. The 2024 Rotterdam pilot and planned Singapore regasified supply serve different places and uses. We do not treat them as interchangeable trials. Shell appears in several announcements, so separate publisher names do not make all the commercial evidence independent.

Kolmogorov · do the numbers agree? Within one fixed delivery boundary, certified bio-LNG must be counted as part of total LNG, not added to it a second time. Actual delivered tonnes and future tonnes-per-year capacity are different measures. If a study tracks claims, each claim needs one stated status and unresolved records must remain visible. We publish no bullish, bearish or neutral percentages for this topic.