Leuna-Polyamid Files for Insolvency as Iran War Surges Sulphur and Benzene Prices

Germany-based caprolactam and polyamide 6 producer Leuna-Polyamid has entered insolvency proceedings less than three months after taking over the former Domo Caproleuna site at the Leuna chemical park in Saxony-Anhalt. The company filed to initiate proceedings at the Halle District Court on 17 June 2026, according to a customer letter, and the court had not yet responded to the application as of the latest reports.

At the heart of the Leuna site is an integrated nylon chain. Caprolactam, made from benzene, is the key intermediate, and its main purpose is to be turned into polyamide 6, better known as nylon 6. This engineering plastic is prized for its strength and durability, feeding automotive parts, electrical components, textile fibers for sportswear and swimwear, and packaging. Running the whole chain on one site is the plant's strength, but it also means a price shock on an input like sulphur or benzene feeds straight through to the final product.

Leuna-Polyamid was formed in early April 2026, when chemical park operator InfraLeuna and epoxy resin producer Leuna-Harze jointly acquired the business and assets from Domo Chemical through a newly established joint venture. That rescue itself followed the December 2025 insolvency of three German Domo subsidiaries, after financing talks with lenders collapsed over the Christmas period. The acquisition, completed on 1 April 2026, preserved the integrated polyamide 6 production chain at Leuna along with roughly 436 of the site's approximately 500 jobs, and was widely described at the time as a last-minute rescue that prevented an unsafe winter shutdown of the plant.

The new owners ran into liquidity problems within weeks. The company pointed to sudden shifts in the economic environment caused by the US-Iran conflict, which it said pushed prices for key inputs including sulphur, benzene and propylene up by 60 to 100 percent. These feedstocks also became difficult to source. Managing director Martin Naundorf explained in the customer letter that the supply of sulphur, which is essential for production, could not be secured in sufficient quantities, further restricting plant utilization. He added that this drove a sharply higher liquidity requirement in day-to-day operations that the young company could not absorb.

The price shock is tied directly to the war that began on 28 February 2026 and the resulting disruption to shipping through the Strait of Hormuz. With benzene, propylene and other building-block chemicals climbing sharply across Europe through March and April, producers of nylon and other polymers announced repeated price increases. For a newly capitalized company that had not yet built financial reserves, the timing proved damaging.

Despite the filing, the situation shows signs of being more controlled than the December 2025 collapse. The difference lies in timing under German insolvency law. In December 2025, Domo's subsidiaries filed only once they had effectively run out of cash, a state of actual illiquidity that left almost no room to maneuver, forced an administrator to take over, and required emergency financing from the state of Saxony-Anhalt to avoid an unsafe shutdown. Leuna-Polyamid, by contrast, has filed while it still holds liquidity and after the plants operated profitably in April and May, having reached economically viable utilization rates before the feedstock shock hit. Because the company moved at the stage of merely imminent rather than actual illiquidity, it can pursue a preventive, negotiated restructuring under court protection while management retains control of operations, rather than facing a full descent into insolvency. Existing orders continue to be fulfilled throughout. The co-owners may seek additional investment, and the company has stated that the search for a strategic investor able to strengthen the business with extra liquidity will play a central role going forward.

Leuna-Polyamid has said existing orders will continue to be fulfilled, while new orders will be reviewed during the proceedings. The company intends to use the time under the insolvency umbrella to improve its structure and look for additional partners at the Leuna site. Its highly integrated PA6 production, running from benzene through intermediates such as caprolactam and cyclohexanone to virgin resins and engineering plastics, remains central to its case for long-term viability.

The outcome carries weight beyond a single plant. Leuna is one of Europe's major chemical hubs, and the site supplies intermediates used by other operators within the park, meaning a closure would ripple across the cluster. Polyamide 6 from Leuna feeds automotive, electrical, electronics and consumer-goods supply chains, so prolonged uncertainty risks tightening an already strained European market for PA6 and downstream engineering plastics.