OCI TerraSus polysilicon
Based in South Korea · compared for United States buyers
Solar-grade polysilicon from Malaysia for non-Chinese supply chains
Malaysian 35,000 t capacity fully contracted to US buyers; doubling planned by 2029.
- Company
- OCI Holdings
- Headquarters
- South Korea
- Availability in US
- Limited
- Last verified
- 2026-10
- ⚠ Limited availability
Replaces in the United States
- Tongwei
- Non-Chinese polysilicon
Vendor site: https://www.ociholdings.com/
Regional source: www.pvtime.org (checked 2026-10)