Exhibit 99.1 Burning Rock Reports First Quarter 2023 Financial Results GUANGZHOU, China, May 30, 2023—Burning Rock Biotech Limited (NASDAQ: BNR and LSE: BNR, the "Company" or "Burning Rock"), a company focused on the application of next generation sequencing (NGS) technology in the field of precision oncology, today reported financial results for the three months ended March 31, 2023. Recent Business Updates • Minimal Residual Disease (MRD) • Results of the MEDAL (MEthylation Based Dynamic Analysis for Lung ...