# Greene Tweed builds $31.6M chip seal plant in Ochang, South Korea

Greene Tweed is committing 43.6 billion won ($31.6 million) through 2028 to build a greenfield plant in Ochang, South Korea, that will produce up to 600,000 plasma-resistant elastomer sealing units annually for semiconductor fabs. The facility, completed in June 2024, creates 123 jobs.

- Type: New facility
- Announced: 2026-11-04
- Where: Ochang, Cheongju, North Chungcheong Province, South Korea
- Value: $31.6M (43.6B KRW)
- Jobs: 123
- Starts operating: Jun 2024
- Status: completed
- Capacity: 600,000 units per year
- Products: Chemraz perfluoroelastomer seals, plasma-resistant sealing units
- Sectors: [Semiconductors and Industrial Electronics](https://endata.com/sectors/semiconductors-electronics.md)

## Companies

- [Greene Tweed](https://endata.com/companies/14035.md)

## Sources

- [eastasiabrief.com](https://eastasiabrief.com/semiconductors/greene-tweed-builds-43-6-billion-won-chip-seal-1145), 2026-11-05: "Greene Tweed is committing 43.6 billion won ($31.6 million) through 2028 to the greenfield project."

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