On April 9, 2021, Kalevi Kurkij rvi, Ph.D., provided notification of his resignation from the Board of Directors of FibroGen, Inc. effective June 30, 2021. Dr. Kurkij rvi's resignation as a director is not the result of any disagreement with FibroGen on any matter relating to FibroGen's operations, policies or practices. Dr. Kurkij rvi joined FibroGen's Board in November 1996 and served in a number of capacities during his tenure, including as a member of the Audit Committee as well as on the board of directors of company subsidiary, FibroGen Europe Oy, since 1997, and most recently as its Managing Director since 2019.