Argus and CRU commentary contrast Canada's remelt behaviour, accelerating when Vancouver FOB clears high logistics costs, slowing when prices fall, with Kazakhstan and Saudi regulatory or capacity-driven draws. Late-2023 Vancouver weakness at $72 per tonne squeezed Alberta high-cost remelt economics. The Argus viewpoint is at https://www.argusmedia.com/en/news-and-insights/latest-market-news/2523114-viewpoint-global-softness-to-pressure-northam-sulfur.
Export-process costs have often been cited above $150 per tonne for remelt, rail, forming, and terminal. $72 FOB does not clear that hurdle. Earlier in 2023, Argus reported suppliers remelting solid sulfur inventory to keep pace with exporter demand. Mid-to-late 2023 is the slowdown. Pour-to-block returns as the default for remote tonnes.
Alberta recovered sulfur still leaves mainly through the Vancouver stem. VFPA still printed 3.10 million tonnes of sulphur for 2023, up 11 percent. Slowing remelt is not an idle harbour. Current oil-sands and gas-plant recovery still formed and loaded. South Cheecham started in the third quarter. Forming of new recovery and remelt of old block are different valves. Only the second one shut.
AER via Argus put January-October Alberta production at 3.78 million tonnes, up 11 percent. More recovery into a softer FOB is why pad can grow even while the stem grows. Derived later mid-2024 stock near 12 million tonnes, from the July 2025 11.66 million tonne print, is the inventory that 2023 remelt-slowdown helped preserve. 2025's $238 FOB is when that pad became cargo again.
Kazakh crushed-lump sales and Saudi 0.15 million tonnes a quarter from stock continued through the same soft window. Those tonnes hit world CIF. They are why a Canadian remelt slowdown does not tighten the seaborne market by itself. Three inventory regimes, one surplus. USGS 85.8 million tonne 2023 world is the production backdrop.
Tampa $55 in mid-July and $102 in the fourth quarter, USGS, bracket the US molten year. Vancouver $72 in mid-December is the Pacific print that stopped remelt. Licensed weekly grids are not restated. The $72 midpoint is the open-news print that sets the economics in this item.
Heartland Sulphur's Edmonton-area forming, about 4,500 tonnes a day, and South Cheecham's 4,400 tonnes a day, are capacity that can sit underutilized on remelt while still handling current recovery. 2025's Heartland remelt expansion to 700 tonnes a day, then 1,500 planned by end-2026, is the later response when FOB paid. August 2023 is when it did not.
Figures follow Argus and CRU public commentary. The price-sensitive Canadian remelt valve is the Alberta-lens read on a $72 Vancouver winter.