Viatris Pharmaceuticals Group is a global healthcare company headquartered in the United States, a combination of Upjohn group, previously the Division of Pfizer and Mylan Group. Upon the combination, Viatris becomes one of the 500 Fortune companies with over 17bn USD revenue, 50 manufacturing sites world-wide and serves more than 165 markets around the world focusing on the Off-Patent Originator (OPO), Biosimilar and API.

In Vietnam, Viatris was established in 2020 (after many decades of Mylan and Upjohn presence) with a strong focus on technology transfer of Off-Patent Originator (OPO) and Covid-19 treatment drugs. Viatris is one of the first global companies engaging in OPO tech transfer in Vietnam.