Burning Rock Biotech Limited (NASDAQ: BNR, the “Company” or “Burning Rock”), a company focusing on the application of next generation sequencing (NGS) technology in the field of precision oncology, today announced that as of the date of this press release, its founder, chairman of the board of directors and chief executive officer, Mr. Yusheng Han, has purchased US$811,721.28 of the Company’s ADSs from the open market, which was conducted in compliance with the applicable rules and regulations and the Company’s insider trading policy. Mr. Han’s purchase of the Company’s ADSs indicates his confidence in the Company’s business and prospect.

Beijing Strong Biotechnologies, Inc. (BSBE. 300406) announced on the evening of September 21 that the company signed reagent purchase agreement with Roche Diagnostics (Shanghai) Co., Ltd.