Caustic Soda Price History
The caustic soda price in 2026 is primarily driven by chlorine market dynamics,
energy costs, and global supply-demand balance. Zumrut International Kimya
publishes weekly caustic soda price lists — EXW Ankara and FOB Iskenderun —
for Flakes 98-99% and Liquid 47-50% grades. According to the
ICIS Chemical Market,
Sodium Hydroxide prices are closely linked to chlorine co-production economics in
the chlor-alkali process.
Affecting Factors on the Price of Caustic Soda
Chlorine Price
Almost all Caustic Soda in the world is produced by a chemical process called the chlor-alkali process. In this process the NaCl is converted to Caustic Soda (Sodium Hydroxide) and Chlorine.
Both main products are widely used in industries and have a similar production volume . Generally, the production volume of Caustic Soda is slightly more than Chlorine.
However chlorine market determines the amount of its production in the chlor-alkali industry. It can be stated that the Chlorine price is the primary factor determining the price of Caustic Soda.
Caustic Soda Seasonality
Caustic soda is widely used in agricultural and detergents industries.
September to November are the harvest months in the Northern Hemisphere, while March to May are the harvest months in the Southern Hemisphere. As a result of increased demand in harvest months, the Sodium Hydroxide price will increase.
Additionally, the demand for detergents rises from September to May, and in this period, the price of sodium hydroxide increases due to the production growth of detergents.
Caustic Soda Price History
by analyzing the Sodium Hydroxide price history, there is a seasonal increase between September and May each year. The reason is the increased caustic soda demand in agricultural and detergents industries.
Other key factors influencing on caustic soda market are increasing demand for lightweight materials like aluminum, rapid expansion in the pulp and paper industry, and the significant growth of water treatment services.
Sodium Hydroxide Price in Your Destination
We will send you the latest Sodium Hydroxide price in your destination by knowing the information below:
Required Quantity of Caustic Soda
Purity
Type
Destination Port
- Caustic soda is classified as a dangerous cargo (DG) for transportation. Its shipping cost is more than of normal cargoes.
Buy Caustic Soda (Flake and Liquide) from Zumrut International Kimya
is an experienced caustic soda exporter located in Dubai and Ankara. Our main caustic soda market is different ports in Africa and Asia South America and even the heart of Europe.
Our sales experts have extensive knowledge of Sodium Hydroxide price trend and are ready to offer you professional guidance.
Sodium Hydroxide Price March 2026
| Caustic Soda (FCA) Price | 1st Week | 2nd Week | 3nd Week | 4nd Week |
| Caustic Soda Flake (NaOH) 98-99% | 400$-420$ | 400$-425$ | 425$-435$ | |
| Caustic Soda Liquid (NaOH) 48-50% | 190$-200$ | 185$-195$ | 200$-210$ |
| Product and port | FOB | CPT | DAP | ||
| Ports | BND ABBAS | ANZALI | AMIRABAD | ASTARA | ASTARA |
| Caustic Soda Flakes | 50$/TON | 35$/TON | 35$/TON | 25$/TON | 30$/TON |
| Caustic Soda Liquid(48-52%) | – | – | – | – | – |
Caustic Soda Price February 2026
| Caustic Soda (FCA) Price | 1st Week | 2nd Week | 3nd Week | 4nd Week |
| Caustic Soda Flake (NaOH) 98-99% | 400$-420$ | 400$-420$ | 395$-405$ | 385$-400$ |
| Caustic Soda Liquid (NaOH) 48-50% | 190$-200$ | 180$-190$ | 175$-185$ | 170$-180$ |
| Product and port | FOB | CPT | DAP | ||
| Ports | BND ABBAS | ANZALI | AMIRABAD | ASTARA | ASTARA |
| Caustic Soda Flakes | 50$/TON | 35$/TON | 35$/TON | 25$/TON | 30$/TON |
| Caustic Soda Liquid(48-52%) | – | – | – | – | – |
Caustic Soda Price January 2026
| Caustic Soda (FCA) Price | 1st Week | 2nd Week | 3nd Week | 4nd Week |
| Caustic Soda Flake (NaOH) 98-99% | 465$-485$ | 440$-445$ | 445$-455$ | 395$-420$ |
| Caustic Soda Liquid (NaOH) 48-50% | 220$-225$ | 215$-220$ | 195$-200$ | 1950$-200$ |
| Product and port | FOB | CPT | DAP | ||
| Ports | BND ABBAS | ANZALI | AMIRABAD | ASTARA | ASTARA |
| Caustic Soda Flakes | 50$/TON | 35$/TON | 35$/TON | 25$/TON | 30$/TON |
| Caustic Soda Liquid(48-52%) | – | – | – | – | – |
Caustic Soda Price November 2025
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| Caustic Soda (FCA) Price | 1st Week | 2nd Week | 3nd Week | 4nd Week |
| Caustic Soda Flake (NaOH) 98-99% | 475$-490$ | 470$-485$ | 480$-495$ | 480$-500$ |
| Caustic Soda Liquid (NaOH) 48-50% | 225$ | 225$-235$ | 225$-235$ | 230$-235$ |
| Product and port | FOB | CPT | DAP | ||
| Ports | BND ABBAS | ANZALI | AMIRABAD | ASTARA | ASTARA |
| Caustic Soda Flakes | 50$/TON | 35$/TON | 35$/TON | 25$/TON | 30$/TON |
| Caustic Soda Liquid(48-52%) | – | – | – | – | – |
Caustic Soda September 2025
| Caustic Soda (FCA) Price | 1st Week | 2nd Week | 3nd Week | 4nd Week |
| Caustic Soda Flake (NaOH) 98-99% | 440$ | 445$ | 455$ | 470$ |
| Caustic Soda Liquid (NaOH) 48-50% | 220$ | 225$ | 225$ | 220$ |
| Product and port | FOB | CPT | DAP | ||
| Ports | BND ABBAS | ANZALI | AMIRABAD | ASTARA | ASTARA |
| Caustic Soda Flakes | 50$/TON | 35$/TON | 35$/TON | 25$/TON | 30$/TON |
| Caustic Soda Liquid(48-52%) | – | – | – | – | – |
Caustic Soda Aug 2025
| Caustic Soda (FCA) Price | 1st Week | 2nd Week | 3nd Week | 4nd Week |
| Caustic Soda Flake (NaOH) 98-99% | 450$ | 455$ | 445$ | 450$ |
| Caustic Soda Liquid (NaOH) 48-50% | 220$ | 225$ | 220$ | 220$ |
| Product and port | FOB | CPT | DAP | ||
| Ports | BND ABBAS | ANZALI | AMIRABAD | ASTARA | ASTARA |
| Caustic Soda Flakes | 50$/TON | 35$/TON | 35$/TON | 25$/TON | 30$/TON |
| Caustic Soda Liquid(48-52%) | – | – | – | – | – |
Sodium Hydroxide FOB July 2025
| Caustic Soda (FOB) Price | 1st Week | 2nd Week | 3nd Week | 4nd Week |
| Caustic Soda Flake (NaOH) 98-99% | 540$ | 510$ | 520$ | 510$ |
| Caustic Soda Liquid (NaOH) 48-50% | 280$ | 275$ | 275$ | 275$ |
