# LX MMA to build 72B won MTBE plant in Ulsan, South Korea

LX MMA signed an investment MOU with Ulsan City to build a methyl tert-butyl ether (MTBE) synthesis plant in Onsan National Industrial Complex, Ulsan. The plant will have an annual capacity of 150,000 tons and cost 72 billion won, with completion targeted for June 2026.

- Type: New facility
- Announced: 2025-10-29
- Where: Onsan National Industrial Complex, Ulsan, South Korea
- Value: $52.0M (72.0B KRW)
- Starts operating: Jun 2026
- Status: announced
- Capacity: 150,000 tons per year
- Products: methyl tert-butyl ether (MTBE)
- Sectors: [Specialty Chemicals](https://endata.com/sectors/specialty-chemicals.md), [Plastics and Polymers](https://endata.com/sectors/plastics-polymers.md)

## Companies

- [LX MMA](https://endata.com/companies/83365.md)

## Sources

- [yna.co.kr](https://www.yna.co.kr/view/AKR20251028171600057), 2025-10-28: "LX MMA의 울산 진출을 환영하며, 지역 석유화학 산업의 고부가가치화와 경쟁력 제고에 큰 동력이 될 것"

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