You're correct. Chime appears to have max processing per batch of 2,000 liters. https://www.biospace.com/article/releases/humanigen-and-chime-biologics-enter-into-manufacturing-agreement-for-covid-19-therapeutic-candidate-lenzilumab/ But I believe some of the US manufacturers can produce as much as 4,000 liters per batch, so I used 3,000 liters as an average.