Fertilizers · Weekly Price Assessment
Southeast Asia Ammonium Sulphate Price — CFR Southeast Asia
The latest CFR Southeast Asia ammonium sulphate assessment is $215.00 per metric ton for 3 September 2026, down $5.00 from the previous weekly assessment (20 Aug 2026). Explore the historical price chart and recent weekly assessments below.
Latest Southeast Asia Ammonium Sulphate Price
- Basis
- CFR Southeast Asia
- Unit
- USD/mt
- Frequency
- Weekly
- CS code
- CS-ARG-AS-SEA
What This Indicator Measures
Weekly CFR Southeast Asia assessment of caprolactam ammonium sulphate in USD/mt.
Ammonium Sulphate: A physical price for ammonium sulphate, a nitrogen-and-sulphur fertilizer (about 21% N and 24% S). Standard, granular and compacted grades are separate markets.
Specification · stated by the source for this series
- Caprolactam, explicitly stated in the weekly bulk ammonium sulphate table of Argus Nitrogen, 3 September 2026. The row does not specify compacted or granular material.
- Approximately 21% nitrogen and 24% sulphur by mass.
- Grade (standard/compacted/granular) is part of the series definition.
Basis: CFR Southeast Asia
- CFR (cost and freight): the price includes freight to the named destination but not insurance; it is a delivered-basis value for the importing market.
- Southeast Asia on a CFR basis refers to product delivered to importing ports in the region (e.g. Thailand, Philippines, Vietnam).
Unit: USD/mt
- Most series are USD per metric tonne of product, not per tonne of nitrogen. NOLA barge series are USD per short ton (907.18 kg); Rouen and German inland series are EUR/mt.
- FOB origin and CFR destination values differ by freight and insurance and are not interchangeable.
Southeast Asia Ammonium Sulphate Price Chart
Available history 29 Jan 2026 through 3 Sep 2026 (21 observations). Monthly averages below use the midpoint of each published assessment.
Ammonium Sulphate — Southeast Asia
Computed Summary
Statements below are calculated by CommodityScope from the loaded history only. Each one names its period and method; none explains why a value moved.
The latest assessment of $215.00/mt on 3 Sep 2026 is down $5.00 (-2.3%) from the previous weekly assessment (20 Aug 2026).
Method: Computed by CommodityScope as the difference between the two most recent loaded weekly observations (14 calendar days apart).
It is 7.2% below the August 2026 average of $231.67/mt, the most recent completed month with 3 weekly observations.
Method: Arithmetic mean of the published weekly midpoints in August 2026. Partial months are excluded from this comparison.
Over the loaded history (29 Jan 2026 – 3 Sep 2026), the highest assessment was $332.00/mt on 7 May 2026 and the lowest was $200.00/mt on 29 Jan 2026.
Method: Minimum and maximum of the published midpoint over the loaded history (29 Jan 2026 – 3 Sep 2026, 21 observations). This is not an all-time record.
Price Changes and Historical Range
Published changes are copied from the source edition. Computed changes are CommodityScope calculations between loaded weekly observations; the two are shown separately and may differ when an intermediate edition is not loaded.
Monthly Southeast Asia Ammonium Sulphate Prices
Average, minimum and maximum of the weekly midpoints in each calendar month — these average weekly assessments, so a month typically has 4–5 observations. Incomplete latest months are marked month to date.
| Month | Average mid | Min mid | Max mid | Observations |
|---|---|---|---|---|
| September 2026Month to date | 215.00 | 215.00 | 215.00 | 1 |
| August 2026 | 231.67 | 220.00 | 247.50 | 3 |
| July 2026 | 240.50 | 233.50 | 247.50 | 2 |
| June 2026 | 254.13 | 230.00 | 279.00 | 4 |
| May 2026 | 306.50 | 292.50 | 332.00 | 3 |
| April 2026 | 318.75 | 315.00 | 322.50 | 2 |
| March 2026 | 265.00 | 237.50 | 292.50 | 3 |
| February 2026 | 201.50 | 201.50 | 201.50 | 2 |
| January 2026 | 200.00 | 200.00 | 200.00 | 1 |
Recent Weekly Assessments
Last 21 published assessments. The chart above is interactive; this table is the HTML history.
| Date | Low | High | Mid | Δ week (published) |
|---|---|---|---|---|
| 2026-09-03 | 210.00 | 220.00 | 215.00 | — |
| 2026-08-20 | 210.00 | 230.00 | 220.00 | — |
| 2026-08-13 | 225.00 | 230.00 | 227.50 | — |
| 2026-08-06 | 240.00 | 255.00 | 247.50 | — |
| 2026-07-30 | 240.00 | 255.00 | 247.50 | — |
| 2026-07-23 | 227.00 | 240.00 | 233.50 | — |
| 2026-06-25 | 225.00 | 235.00 | 230.00 | — |
| 2026-06-18 | 245.00 | 250.00 | 247.50 | — |
| 2026-06-11 | 255.00 | 265.00 | 260.00 | — |
| 2026-06-04 | 278.00 | 280.00 | 279.00 | — |
| 2026-05-28 | 290.00 | 295.00 | 292.50 | — |
| 2026-05-21 | 290.00 | 300.00 | 295.00 | — |
| 2026-05-07 | 326.00 | 338.00 | 332.00 | — |
| 2026-04-23 | 320.00 | 325.00 | 322.50 | — |
| 2026-04-15 | 310.00 | 320.00 | 315.00 | — |
| 2026-03-26 | 285.00 | 300.00 | 292.50 | — |
| 2026-03-19 | 260.00 | 270.00 | 265.00 | — |
| 2026-03-06 | 225.00 | 250.00 | 237.50 | — |
| 2026-02-19 | 198.00 | 205.00 | 201.50 | — |
| 2026-02-12 | 198.00 | 205.00 | 201.50 | — |
| 2026-01-29 | 195.00 | 205.00 | 200.00 | — |
What This CFR Southeast Asia Price Represents
This page tracks the weekly ammonium sulphate on a CFR Southeast Asia basis, quoted in USD/mt. Figures are CommodityScope Indicators synthesized from loaded market editions. They are not a live quote and not a republication of a price-reporting agency table.
How to use this series
- Follow FOB China export values and CFR destination values; compare per-unit-N with urea using the nutrient-value series.
What it is not suitable for
- Treating grades as interchangeable.
Compare With
Each comparison states why the series are related and whether the latest values can be subtracted directly (same unit, currency and assessment date). Where they cannot, the values are shown side by side without a difference.
| Series | Why compare | Latest | Difference (this − other) |
|---|---|---|---|
| Ammonium Sulphate Compacted — China FOB China · USD/mt · weekly | Compacted grade FOB China: main supply origin.
| 205.00 3 Sep 2026 | +10.00 |
| Ammonium Sulphate Nutrient Value — Southeast Asia CFR · USD/unit N · weekly | Same market expressed per unit of nitrogen so it can be compared with other nitrogen products.
| 10.24 3 Sep 2026 | not directly comparable |
Related Ammonium Sulphate Prices
Sources and Methodology
CommodityScope publishes this page as a derived indicator from loaded physical-market editions. It does not republish a price-reporting agency table and does not claim authorship of the underlying source assessments. Update cadence follows the weekly series. Internal series code CS-ARG-AS-SEA.
CS Indicator policy and derived-data rules.
Sources for the explanations on this page
- Argus Nitrogen, 3 September 2026, daily and weekly ammonium sulphate tables — Grade label checked; this is not a verification of every historical value.
- ICC Incoterms® 2020 rules (FOB, CFR, CIF, FCA definitions) — Meaning of the delivery terms used in the basis column.
- CommodityScope methodology — derived-indicator rules and computed statistics
Origin of the numbers: loaded market editions (see Basis and Unit above). Origin of the computed statistics: CommodityScope, from the loaded history, using the rules on the methodology page.