20. Jul 2026

The scheduled turnaround covers 650,000 metric tons/year of isocyanate capacity at the company’s integrated production complex in Hungary.
Wanhua Chemical has begun a phased shutdown of the MDI and TDI plants operated by its BorsodChem subsidiary in Kazincbarcika, Hungary, for scheduled maintenance.
The turnaround began on July 17 and is expected to last approximately 35 days, according to a Wanhua announcement filed with the Shanghai Stock Exchange.
The work covers BorsodChem’s 400,000 metric tons/year MDI plant and its 250,000 metric tons/year TDI plant. Associated facilities forming part of the integrated production complex, including supporting aniline and nitrobenzene operations, are also being taken offline in stages.
Wanhua said the shutdown was part of BorsodChem’s routine annual maintenance program and was intended to support the safe and efficient operation of the equipment. The company said it did not expect the work to have a material effect on the group’s overall production or operations.
However, the turnaround temporarily removes a combined 650,000 metric tons/year of nameplate MDI and TDI capacity from the European market. Wanhua did not disclose whether the shutdown would affect product availability, customer deliveries or regional pricing.
BorsodChem is one of Wanhua’s principal European production operations and supplies isocyanates used in rigid and flexible PU foams, coatings, adhesives, sealants and elastomers. Its downstream markets include construction, refrigeration, furniture and automotive manufacturing.
Wanhua acquired the Hungarian chemical producer in 2011. The Chinese group describes itself as one of the world’s leading suppliers of chemical materials, with operations spanning polyurethanes, petrochemicals, performance chemicals and emerging materials.