Subsidiary Name

Subsidiary Jurisdiction

Spectrum Life Sciences, LLC

United States

Repligen (Shanghai) Biotechnology Co. Ltd.

China

Repligen Estonia OṺ

Estonia

Polymem S.A.

France

Repligen GmbH

Germany

908 Devices GmbH

Germany

Repligen India Private Limited

India

ARTeSYN Biosolutions Holdings Ireland Ltd.

Ireland

ARTeSYN Biosolutions Ireland Limited

Ireland

Repligen Ireland Limited

Ireland

Repligen Japan LLC

Japan

Repligen Europe B.V.

Netherlands

Repligen Singapore Pte. Ltd.

Singapore

Repligen Korea Co., Ltd.

South Korea

Repligen Sweden AB

Sweden

Tantti Laboratory Inc

Taiwan

Repligen UK Limited

United Kingdom

Tantti Laboratory Inc

Taiwan