Port of Singapore bunker sales reached 5.36 million tonnes in Q1 2025 — a 36-month high — as the port's position as the world's largest bunkering hub was reinforced by increased LNG-to-marine fuel switching, expanded biofuel blending infrastructure, and a structural reorientation of VLCC routing patterns following the Red Sea crisis-driven Cape of Good Hope rerouting that persisted through Q4 2024. Within the aggregate volume, the composition has shifted materially: VLSFO now accounts for 61% of total sales (up from 54% in Q1 2024), while HSFO has declined to 28% and bio-blended marine fuels (B24 and B30) have grown to approximately 11% of total volume — a doubling in twelve months.
VLSFO/HSFO SPREAD DYNAMICS
The VLSFO/HSFO spread in Singapore averaged $94/MT in Q1 2025 — wider than the $78/MT average for Q1 2024 — as tighter global availability of low-sulphur feedstocks (specifically Urals replacement volumes and Middle East light-sweet crude) continued to pressure VLSFO refinery margins. This spread level sits above the economic switching point for scrubber-fitted vessels (estimated at $85/MT on a 12,000 MT/month consumption basis), but the scrubber retrofit pipeline has slowed significantly: only 23 new scrubber installations were completed globally in Q1 2025, compared to a quarterly peak of 340 in Q4 2019.
Q1 2025 SINGAPORE BUNKER SALES BY GRADE
| Grade | Q1 2025 Volume (MT) | Q1 2024 Volume (MT) | YoY Change | Market Share |
|---|---|---|---|---|
| VLSFO (0.5% S) | 3,269,600 | 2,791,200 | +17.1% | 61% |
| HSFO (3.5% S) | 1,500,800 | 1,672,000 | −10.2% | 28% |
| Bio-Blended (B24/B30) | 589,600 | 268,800 | +119.3% | 11% |
| LNG Marine | — | — | N/M | <1% |
| Total | 5,360,000 | 4,732,000 | +13.3% | 100% |
BIO-BUNKER BLENDS: PREMIUM STRUCTURE AND SUPPLY CHAIN
The B24 bio-bunker blend (24% Used Cooking Oil Methyl Ester / UCOME blended with 76% VLSFO) has emerged as the preferred FuelEU Maritime-aligned product for European shipping lines seeking to front-run the 2025 GHG intensity targets. Singapore's MPA has provisionally approved 14 additional barge operators for bio-blended bunker supply since September 2024. The premium for B24 over equivalent VLSFO was $112/MT in April 2025 — compressed from $145/MT in Q4 2024 as additional UCOME supply entered the market from Indonesian and Malaysian feedstock processors. XRT's energy desk is tracking the UCOME/fatty acid methyl ester (FAME) basis closely, as Malaysian regulatory changes effective June 2025 may restrict UCOME export volumes and widen the B24 premium by $30–$50/MT through Q4.
IMO 2050 TRAJECTORY AND PROCUREMENT POSTURE
The IMO's revised GHG Strategy (October 2023) sets net-zero emissions for shipping by 2050, with a 20–30% reduction target by 2030 against a 2008 baseline. For shipping clients managing vessel fuel procurement through XRT, the strategic implication is a gradual but accelerating shift in bunker composition — with B24/B30 as a bridge fuel through 2027 before green methanol and ammonia bunkering infrastructure matures at Singaporean and major hub ports. XRT recommends establishing framework agreements for bio-blended bunker supply now, while the UCOME premium remains below $125/MT, to lock in FuelEU Maritime compliance optionality through 2026 voyage scheduling.