In May 2026, the European chlorine production reached 700,778 tonnes. With 22,606 tonnes, the May 2026 average daily production was 7.6% higher than in the previous month (April 2026: 21,003 tonnes) and 16.8% higher than in May 2025 (19,353 tonnes).

With 235,086 tonnes, the May 2026 caustic soda stocks were 15.2% higher than in the previous month (April 2026: 204,129 tonnes) and 45,374 tonnes above the level of May 2025 (189,712 tonnes).

The following tables give the details of chlorine production and caustic soda stocks in the EU-27 countries plus Norway, Switzerland, and the UK May 2026.

Chlorine production & capacity utilisation - EU 27 + Norway/Switzerland/UK

Caustic Soda stocks (tonnes)

For more information please contact:

Dr Richy Mariner, Director, Euro Chlor, rma@cefic.be 

About Euro Chlor
Euro Chlor represents 37 member companies producing chlorine at 60 manufacturing locations in 18 countries.

Note to editors:
Some of the totals for each month may vary slightly compared with figures used earlier. Please rely on the most recent information since it sometimes happens that we have to estimate when a producer is late in providing data. This is subsequently adjusted when the actual figure becomes available.