US PPI — Synthetic Ammonia, Nitric Acid, Ammonium Compounds, and Urea
Producer Price Index for the nitrogen fertilizer intermediates group, a WPU commodity index covering synthetic ammonia, nitric acid, ammonium compounds, and urea together. Index base: December 2014 = 100.
Latest value
144.547
Index · as of Aug 2026
Year-over-year change
+21.3%
BLS
Month-over-month change
-9.6%
Latest value is 1 month old. Next update expected around Sep 2026.
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Price history
Data & insights
Key figures
From Jan 2024 to Aug 2026 the index went from 109.9 to 144.5, a change of +31.5%.
Highest reading in that period: 180.1 in May 2026. Lowest: 98.1 in Sep 2024.
Largest one-month rise: +10.8% in May 2026. Largest one-month fall: -9.8% in Jul 2026.
For a clause that resets its base every year, a 10% cap or floor would have limited the adjustment in 16 of the last 20 months.
Volatility (12mo)
±6.18%
Std. dev. of month-over-month change
Strongest average month-over-month move historically: December (+5.6% avg).
What this means for your clause
Used in nitrogen fertilizer supply and blending contracts as the input-cost benchmark ahead of the finished fertilizer manufacturing index. It bundles several nitrogen intermediates into one figure, so a contract buying only urea specifically still benefits from naming urea in the clause language even though this series is what gets tracked.
Draft a clause
A starting point citing this series by name and code. Replace the bracketed terms with your contract's actual scope before use.
The [affected portion] of the Contract Price shall be adjusted using US PPI — Synthetic Ammonia, Nitric Acid, Ammonium Compounds, and Urea (BLS series WPU0652013A), published by BLS.
Base Period: the index value published for August 2026 (or the month of contract signing, if different) is the Base Value.
Adjustment: at each Adjustment Date, the Current Value is the most recently published three-month average of the index (the Averaging Window). The Escalation Factor equals Current Value divided by Base Value.
Cap: the Escalation Factor applied under this clause shall not exceed 1.10 or fall below 0.90 (a 10% cap and floor) in any single Adjustment Date, regardless of the index's actual movement.
[Replace bracketed terms with your contract's actual affected-portion definition and adjustment-date schedule before use. This is a drafting starting point, not legal advice.]
Compare the current value of BLS series WPU0652013A (Synthetic Ammonia, Nitric Acid, Ammonium Compounds, and Urea) to its value at contract signing, turn that into a ratio, and apply the ratio to the nitrogen fertilizer-affected line items. A usable clause also names an averaging window, a publication-lag rule, and a cap.
Escalake tracks US PPI — Synthetic Ammonia, Nitric Acid, Ammonium Compounds, and Urea, applies your formula, and gives both sides a number they can confirm, no spreadsheet required.
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