OTSUKA TECHNO CORPORATION.

Japan

BIO-TECHNE LTD

United Kingdom

AUSSIE TUCKER TECHNIK PTY LTD

Australia

Eidg. Techn. Hochschule Zürich

Switzerland

TEXAS TECH UNIVERSITY

United States

KVK-Tech, Inc.

United States

QUANOVATE TECH INC.

United States

Alpha Pro Tech

Eurocor Tech GmbH

Germany

NEPHRO-TECH, INC.

United States