Chemicals
May 26, 2026
Platts corrects May 19 US domestic chlor-alkali prices
Please note that Platts, part of S&P Global Energy, has corrected its assessments of US domestic chlor-alkali prices for May 19.
The assessments should read as follows:
| Symbol | Assessment | Currency | UoM | Low | High | Close |
| AANTH00 | Caustic Soda FOB Plant | USD | Dry short ton | 545 | 555 | 550 |
| AANTJ00 | Caustic Soda US Contract | USD | Dry short ton | 565 | 575 | 570 |
| CHCLU01 | Hydrochloric Acid US Contract (current quarter) | USD | Wet short ton | N/A | 300 | N/A |
| CHCLU02 | Hydrochloric Acid US Contract (next quarter) | USD | Wet short ton | N/A | 295 | N/A |
| AANTL00 | US Contract | USD | Dry short ton | 730 | 740 | 735 |
The correction was made on May 26, 2026.
Affected assessments appear on MetalsWeek, Solventswire, and on Platts Chemical Alert pages MTL0050,PMA0050, PCA0380, PCA0393.
Please send all questions to petchems@spglobal.com, with a copy to pricegroup@spglobal.com.