Index lookup · WPU061303024
Producer Price Index for sodium hydroxide, commonly called caustic soda, a WPU commodity index for the single product rather than the broader chlor-alkali group it is produced alongside. Index base: December 2007 = 100.
Latest value is 1 month old. Next update expected around Sep 2026.
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Enter a base value, a current value, and a contract amount to see the adjustment.
Strongest average month-over-month move historically: September (-1.2% avg).
Written into pulp and paper, water treatment, and soap and detergent manufacturing supply contracts where caustic soda is bought as a standalone input rather than paired with chlorine. This is the more precise choice over WPU06130302 (Chlorine, Sodium Hydroxide, and Other Alkalies) whenever the buyer never takes delivery of chlorine at all.
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 — Sodium Hydroxide (Caustic Soda) (BLS series WPU061303024), 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.]
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Compare the current value of BLS series WPU061303024 (Sodium Hydroxide (Caustic Soda)) to its value at contract signing, turn that into a ratio, and apply the ratio to the caustic soda-affected line items. A usable clause also names an averaging window, a publication-lag rule, and a cap.
Read more →Escalake tracks US PPI — Sodium Hydroxide (Caustic Soda), applies your formula, and gives both sides a number they can confirm, no spreadsheet required.
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