Rockville biologics drug substance plant (acquired from GSK, expansion)
Samsung Biologics, Rockville, Montgomery County, Maryland
Rockville biologics drug substance plant (acquired from GSK, expansion) in Rockville, Maryland is Samsung Biologics’ plant for biologic drug substance (clinical and commercial). Status: announced as of December 29, 2025. Samsung Biologics announced $280 million. Primary source: commerce.maryland.gov, checked November 12, 2026.
- Status
- Announced
- Announced investment
- $280 million
- Announced jobs
- Not stated
- Industry
- Pharmaceuticals
- Sheet
- MD-11
- Revised
- November 12, 2026
Status timeline
- Announcedcommerce.maryland.gov
Filled dots are confirmed by a company, state, SEC or federal source. Dashed dots come from news reports only. Investment and job figures are as announced, not achieved.
Plant facts
| Company | Samsung Biologics |
|---|---|
| Plant | Rockville biologics drug substance plant (acquired from GSK, expansion) |
| Location | Rockville, Montgomery County, Maryland |
| Industry | Pharmaceuticals |
| Product | Biologic drug substance (clinical and commercial) |
| Announced investment | $280 millionAcquisition of existing GSK facility with planned capacity expansion; 500+ jobs retained |
| Announced jobs | Not stated |
| Last checked | November 12, 2026 |
No primary source we found states the announced job count, so we leave it blank rather than estimate.
Sources
- Maryland Commerce: Samsung Biologics first U.S. manufacturing site in Rockville (state release, commerce.maryland.gov, checked November 12, 2026)
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