Athenex, Inc. to Report Fourth Quarter and Full Year 2019 Earnings Results on February 27, 2020

Athenex, Inc. (Nasdaq: ATNX), a global biopharmaceutical company dedicated to the discovery, development, and commercialization of novel therapies for the treatment of cancer, today announced that it will release fourth quarter and full year 2019 financial results on Thursday, February 27, 2020, before the market opens, and host a conference call and live audio webcast 8:00am Eastern Time to discuss the financial results and provide a business update.

To participate in the call, dial 877-407-0784 (domestic) or 201-689-8560 (international) fifteen minutes before the conference call begins and reference the conference passcode 13698005. The live conference call and replay can also be accessed via audio webcast at the Investor Relations section of the Company’s website, located at http://ir.athenex.com/.

About Athenex, Inc. Founded in 2003, Athenex, Inc. is a global clinical stage biopharmaceutical company dedicated to becoming a leader in the discovery, development and commercialization of next generation drugs for the treatment of cancer. Athenex is organized around three platforms, including an Oncology Innovation Platform, a Commercial Platform and a Global Supply Chain Platform. The Company’s current clinical pipeline is derived from four different platform technologies: (1) Orascovery, based on non-absorbed P-glycoprotein inhibitor, (2) Src kinase inhibition, (3) T-cell receptor-engineered T-cells (TCR-T), and (4) Arginine deprivation therapy. Athenex’s employees worldwide are dedicated to improving the lives of cancer patients by creating more active and tolerable treatments. Athenex has offices in Buffalo and Clarence, New York; Cranford, New Jersey; Houston, Texas; Chicago, Illinois; Hong Kong; Taipei, Taiwan; multiple locations in Chongqing, China; Manchester, UK; Guatemala City, Guatemala and Buenos Aires, Argentina. For more information, please visit www.athenex.com.

CONTACTSInvestor Relations:Tim McCarthyManaging Director, LifeSci Advisors, LLCDirect: 212-915-2564

Athenex, Inc.:Randoll SzeChief Financial OfficerEmail: [e-mail]

Jacqueline LiCorporate Development and Investor RelationsEmail: [e-mail]