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Finance

Explosion at MOL's Tiszaujvaros petrochemical plant kills one, injures several

Published by Global Banking & Finance Review

Posted on May 22, 2026

2 min read

· Last updated: May 22, 2026

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MOL Tiszaujvaros Petrochemical Plant Explosion Leaves One Dead, Several Injured

Details and Aftermath of the Explosion

Incident Overview

BUDAPEST, May 22 (Reuters) - An explosion at Hungarian oil and gas group MOL's petrochemical plant in Tiszaujvaros, eastern Hungary, has killed one person and seriously injured several others, the company said in a statement on Friday.

Government and Company Response

Prime Minister’s Statement

Prime Minister Peter Magyar said in a Facebook post that his economy minister Istvan Kapitany and MOL's executive chairman Zsolt Hernadi were en route to the plant. Magyar also posted a photo that showed huge black smoke billowing out of the plant.

MOL’s Official Statement

"An explosion occurred at MOL Petrochemicals' site in Tiszaújváros during the restart of the Olefin 1 plant. The fire was localised by firefighters, and the intervention is still ongoing," MOL said.

"The circumstances of the accident are being investigated by experts," the company added, without giving further details. 

Details from Economy Minister

Kapitany, in a Facebook post, said that according to current information, a compressor exploded during the restart of the Olefin 1 plant and the fire was still being put out.

Background on the Olefin 1 Plant

Plant Capacity and Operations

The Olefin 1 plant is a steam cracker unit at MOL's petrochemical plant in Tiszaujvaros. The production capacity of MOL's Olefin-1 plant is approximately 370,000 metric tons of ethylene per year. There are two steam crackers in Tiszaujvaros with 660 kt/y ethylene capacity according to MOL's own website.

Ethylene Usage

Internal Manufacturing

MOL uses the majority of its ethylene internally to manufacture polyethylene plastics, which are sold to the plastics and packaging industries.

Reporting Credits

(Reporting by Krisztina Than; Editing by Kirsten Donovan)

Key Takeaways

  • The blast occurred at MOL’s Olefin‑1 petrochemical unit, a steam cracker used to produce ethylene, during its restart after maintenance. Firefighters have localized the blaze and experts are investigating the incident. (bbj.hu)
  • One individual was confirmed dead and multiple people suffered serious injuries, as reported by Prime Minister Péter Magyar and company statements. Emergency services, including helicopters and a mobile lab, responded swiftly to the site. (bbj.hu)
  • MOL’s Tiszaújváros complex houses two steam crackers with a combined ethylene capacity of approximately 660,000 tonnes per year. Olefin‑1 alone has an estimated ethylene output of around 370,000 tpa. (molgroupchemicals.com)

References

Frequently Asked Questions

What happened at MOL's Tiszaujvaros petrochemical plant?
An explosion occurred during the restart of the Olefin 1 plant, resulting in one death and several injuries.
How many people were affected by the explosion?
One person was killed and several others were seriously injured in the incident.
What was the cause of the explosion at the plant?
A compressor exploded during the restart of the Olefin 1 plant, according to initial information from authorities.
What is the function of the Olefin 1 plant at MOL's Tiszaujvaros facility?
Olefin 1 is a steam cracker that produces ethylene, primarily used for manufacturing polyethylene plastics.
Is the cause of the accident known?
The exact circumstances are still under investigation by experts, with no further details released.

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