# Kumho Mitsui Chemicals to expand MDI capacity by 100,000 tons

Kumho Mitsui Chemicals is investing in a 100,000-ton debottlenecking project for MDI production, running from December 2025 to end of 2026, to increase annual capacity to 710,000 tons.

- Type: Expansion
- Announced: 2026-09-04
- Where: South Korea
- Starts operating: Dec 2026
- Status: under construction
- Capacity: 710,000 tons per year (after expansion)
- Products: MDI (methylene diphenyl diisocyanate)
- Sectors: [Specialty Chemicals](https://endata.com/sectors/specialty-chemicals.md), [Plastics and Polymers](https://endata.com/sectors/plastics-polymers.md)

## Companies

- [Kumho Mitsui Chemicals Corp.](https://endata.com/companies/26031.md)

## Sources

- [newsis.com](https://www.newsis.com/view/NISX20260904_0003775924), 2026-09-04: "지난해 12월부터 올해 말까지 10만t 규모 디보틀네킹 투자를 진행해 생산능력을 연산 71만t까지 확대할 계획이다."

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Data from Endata (https://endata.com/). Announcements are summarized from public sources and may be incomplete; check the linked originals.