{
  "as_of": "2026-06-01",
  "note": "hubs and data use last public anchor per index (skip densified platform_estimate holds)",
  "data": [
    {
      "date": "2026-06-01",
      "index": "SR-VAN-FOB-G",
      "mid": 1045,
      "low": 990,
      "high": 1100,
      "currency": "USD",
      "unit": "MT",
      "data_type": "industry_estimate",
      "source": "Discovery Alert — KPC June sulphur / Vancouver inversion commentary",
      "source_url": "https://discoveryalert.com.au/kuwait-sulphur-price-hormuz-fertiliser-supply-chains-2026/",
      "note": "June 2026 Vancouver FOB spot cited $990–1,100/t; temporary ME inversion on Hormuz risk.",
      "interpolated": false
    },
    {
      "date": "2026-07-01",
      "index": "SR-GULF-FOB-G",
      "mid": 1125,
      "low": 1100,
      "high": 1150,
      "currency": "USD",
      "unit": "MT",
      "data_type": "industry_estimate",
      "source": "Argus Media open news — Tampa 3Q liquid sulphur $705/lt",
      "source_url": "https://www.argusmedia.com/en/news-and-insights/latest-market-news/2851577-tampa-3q-liquid-sulphur-price-hits-record-705-lt",
      "note": "US Gulf refinery spot granular exports $1,100–1,150/t FOB on 9 Jul 2026. Retagged from verified_public: open trade-press/PRA reprint, not a government primary.",
      "interpolated": false
    },
    {
      "date": "2026-06-01",
      "index": "SR-ME-FOB",
      "mid": 805,
      "low": 772.8,
      "high": 837.2,
      "currency": "USD",
      "unit": "MT",
      "data_type": "industry_estimate",
      "source": "Discovery Alert — KPC June sulphur price",
      "source_url": "https://discoveryalert.com.au/kuwait-sulphur-price-hormuz-fertiliser-supply-chains-2026/",
      "note": "KPC June sulphur $805/t FOB Kuwait (article headline figure).",
      "interpolated": false
    },
    {
      "date": "2026-07-01",
      "index": "SR-TAMPA-Q",
      "mid": 705,
      "low": 676.8,
      "high": 733.2,
      "currency": "USD",
      "unit": "LT",
      "data_type": "industry_estimate",
      "source": "Argus Media open news — Tampa 3Q liquid sulphur $705/lt",
      "source_url": "https://www.argusmedia.com/en/news-and-insights/latest-market-news/2851577-tampa-3q-liquid-sulphur-price-hits-record-705-lt",
      "note": "Q3 2026 Tampa molten contract record $705/LT DEL (+$50 from Q2 $655). Retagged from verified_public: open trade-press/PRA reprint, not a government primary.",
      "interpolated": false
    },
    {
      "date": "2026-06-01",
      "index": "SR-CFR-CHINA",
      "mid": 1075,
      "low": 1032,
      "high": 1118,
      "currency": "USD",
      "unit": "MT",
      "data_type": "industry_estimate",
      "source": "Call2Supply 2026 Sulphur Price Analysis",
      "source_url": "https://call2supply.com/2026/06/25/sulphur-price-2026/",
      "note": "June 2026 CFR China $1,075/t.",
      "interpolated": false
    },
    {
      "date": "2026-07-01",
      "index": "SR-BASIS-VG",
      "mid": -80,
      "low": -85,
      "high": -75,
      "currency": "USD",
      "unit": "MT",
      "data_type": "derived",
      "source": "Sulfur Wire derived",
      "note": "Vancouver FOB mid minus US Gulf FOB mid",
      "interpolated": false
    },
    {
      "date": "2025-12-01",
      "index": "SR-US-DOM-AVG",
      "mid": 180,
      "low": 172,
      "high": 188,
      "currency": "USD",
      "unit": "MT",
      "data_type": "verified_public",
      "source": "USGS Mineral Commodity Summaries 2026 — Sulfur",
      "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-sulfur.pdf",
      "note": "US average unit value FOB mine/plant 2025e = $180/MT (vs $46.42 in 2024). Relabeled from Gulf export series: domestic FOB mine/plant average, not seaborne export spot.",
      "interpolated": false
    }
  ],
  "densified_latest": [
    {
      "date": "2026-07-01",
      "index": "SR-BASIS-VG",
      "mid": -80,
      "low": -85,
      "high": -75,
      "currency": "USD",
      "unit": "MT",
      "data_type": "derived",
      "source": "Sulfur Wire derived",
      "note": "Vancouver FOB mid minus US Gulf FOB mid",
      "interpolated": false
    },
    {
      "date": "2026-07-01",
      "index": "SR-CFR-CHINA",
      "mid": 1075,
      "low": 1032,
      "high": 1118,
      "currency": "USD",
      "unit": "MT",
      "data_type": "platform_estimate",
      "source": "Sulfur Wire platform estimate",
      "source_url": "https://call2supply.com/2026/06/25/sulphur-price-2026/",
      "note": "Held from last public anchor 2026-06-15",
      "interpolated": true
    },
    {
      "date": "2026-07-01",
      "index": "SR-GULF-FOB-G",
      "mid": 1125,
      "low": 1100,
      "high": 1150,
      "currency": "USD",
      "unit": "MT",
      "data_type": "industry_estimate",
      "source": "Argus Media open news — Tampa 3Q liquid sulphur $705/lt",
      "source_url": "https://www.argusmedia.com/en/news-and-insights/latest-market-news/2851577-tampa-3q-liquid-sulphur-price-hits-record-705-lt",
      "note": "US Gulf refinery spot granular exports $1,100–1,150/t FOB on 9 Jul 2026. Retagged from verified_public: open trade-press/PRA reprint, not a government primary.",
      "interpolated": false
    },
    {
      "date": "2026-07-01",
      "index": "SR-ME-FOB",
      "mid": 805,
      "low": 772.8,
      "high": 837.2,
      "currency": "USD",
      "unit": "MT",
      "data_type": "platform_estimate",
      "source": "Sulfur Wire platform estimate",
      "source_url": "https://discoveryalert.com.au/kuwait-sulphur-price-hormuz-fertiliser-supply-chains-2026/",
      "note": "Held from last public anchor 2026-06-15",
      "interpolated": true
    },
    {
      "date": "2026-07-01",
      "index": "SR-TAMPA-Q",
      "mid": 705,
      "low": 676.8,
      "high": 733.2,
      "currency": "USD",
      "unit": "LT",
      "data_type": "industry_estimate",
      "source": "Argus Media open news — Tampa 3Q liquid sulphur $705/lt",
      "source_url": "https://www.argusmedia.com/en/news-and-insights/latest-market-news/2851577-tampa-3q-liquid-sulphur-price-hits-record-705-lt",
      "note": "Q3 2026 Tampa molten contract record $705/LT DEL (+$50 from Q2 $655). Retagged from verified_public: open trade-press/PRA reprint, not a government primary.",
      "interpolated": false
    },
    {
      "date": "2026-07-01",
      "index": "SR-US-DOM-AVG",
      "mid": 180,
      "low": 172,
      "high": 188,
      "currency": "USD",
      "unit": "MT",
      "data_type": "platform_estimate",
      "source": "Sulfur Wire platform estimate",
      "source_url": "https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-sulfur.pdf",
      "note": "Held from last public anchor 2025-12-31",
      "interpolated": true
    },
    {
      "date": "2026-07-01",
      "index": "SR-VAN-FOB-G",
      "mid": 1045,
      "low": 990,
      "high": 1100,
      "currency": "USD",
      "unit": "MT",
      "data_type": "platform_estimate",
      "source": "Sulfur Wire platform estimate",
      "source_url": "https://discoveryalert.com.au/kuwait-sulphur-price-hormuz-fertiliser-supply-chains-2026/",
      "note": "Held from last public anchor 2026-06-15",
      "interpolated": true
    }
  ],
  "hubs": {
    "SR-VAN-FOB-G": 1045,
    "SR-GULF-FOB-G": 1125,
    "SR-TAMPA-Q": 705,
    "SR-BASIS-VG": -80,
    "SR-ME-FOB": 805
  }
}