Samsung Biologics Completes Purchase of Rockville Biologics Plant From GSK

by LEE HYO JUNG Posted : April 1, 2026, 11:42Updated : April 1, 2026, 11:42
Attendees pose at a ceremony marking the completion of Samsung Biologics’ acquisition of a biopharmaceutical manufacturing facility in Rockville, Maryland.
Attendees pose for a photo at a completion ceremony held March 31 (local time) at the biopharmaceutical manufacturing facility in Rockville, Maryland. From the fifth person on the left in the front row: Kang Kyung-wha, South Korean ambassador to the United States; John Rim, CEO of Samsung Biologics; Wes Moore, governor of Maryland; and April Delaney, a member of the U.S. House of Representatives. [Photo=Samsung Biologics]

Samsung Biologics said it has completed its acquisition of a manufacturing facility in Rockville, Maryland, adding 60,000 liters of production capacity.

The company said Tuesday it finalized the purchase of the biopharmaceutical plant from GlaxoSmithKline on March 31 (local time), about three months after signing the deal in December. The buyer was its U.S. subsidiary, Samsung Biologics America.

The Rockville site is a 60,000-liter drug substance (DS) plant made up of two manufacturing buildings. It has infrastructure to produce antibody drugs at various scales, from clinical-stage batches to commercial production.

With the acquisition, Samsung Biologics said its total production capacity increased to 845,000 liters from 785,000 liters.

The company said the deal strengthens its ability to serve customers in North America and creates a two-hub manufacturing system linking Songdo, South Korea, and Rockville, offering global clients stable and flexible production options.

Samsung Biologics said it will retain all of the roughly 500 local specialists at the site to ensure operational continuity. It plans to integrate the two production bases to maintain supply of existing products and step up efforts to win new orders.

“This acquisition is meaningful progress in expanding our global manufacturing footprint,” CEO John Rim said. “Together with the Rockville site’s skilled workforce, we will maintain operational continuity and continue a stable supply system.”




* This article has been translated by AI.