Exhibit 99.1 FibroGen Reports Fourth Quarter and Full Year 2023 Financial Results • Topline data from two pivotal pamrevlumab pancreatic cancer trials anticipated in 2Q 2024 • Additional data from Phase 1 monotherapy study of FG-3246 in metastatic castration-resistant prostate cancer (mCRPC) expected in 1Q 2024 • FibroGen regains rights to roxadustat from AstraZeneca in the United States and other AstraZeneca territories, except China and South Korea • FY 2023 total net revenue of $147.8 million, an increas ...