Index lookup · WPU06130302
US PPI — Chlorine, Sodium Hydroxide, and Other Alkalies
Producer Price Index for the chlorine and sodium hydroxide group, a WPU commodity index covering chlor-alkali products sold together as co-products of the same production process. Index base: June 2005 = 100.
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 204.6 to 215.6, a change of +5.3%.
- Highest reading in that period: 221.4 in Jun 2026. Lowest: 198.4 in Sep 2024.
- Largest one-month rise: +3.1% in Jul 2025. Largest one-month fall: -2.4% in Jul 2026.
- The year-over-year change stayed within 10% either way in each of the last 20 months, so a 10% annual cap or floor would not have been reached.
Strongest average month-over-month move historically: September (-1.3% avg).
What this means for your clause
Relevant to water treatment, pulp bleaching, and PVC supply contracts that draw on chlor-alkali output. Chlorine and sodium hydroxide are joint products of one electrolysis process, so a plant tilting output toward one product can shift the blended price here independent of demand for the other, worth a footnote in a long-term supply contract.
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 — Chlorine, Sodium Hydroxide, and Other Alkalies (BLS series WPU06130302), 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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