Chemical Extraction

 is a mission in Grand Theft Auto Online given by Lester to the player. It is available up to 4 players.

Overview
Lester sends the player a text notifying him of a high-priority shipment under heavy guard at the Humane laboratory. Players must travel to the laboratory and fight through hired Merryweather security to a garage terminal, which in turn will open a locked area and grant access to the van. The player(s) must then return the van to Lester's warehouse without damaging it or its contents.

Mission objectives

 * Go to the Humane Laboratory.
 * Hack the terminal.
 * Steal the van.
 * Deliver the van to Lester's safehouse.

Trivia

 * It is possible that the shipment was being produced under watch by the IAA, similar to the stolen nerve toxin seen in Monkey Business at the same laboratory. This would explain the Merryweather presence, as they work closely with the IAA in defensive domestic operations. However, it is also possible that Humane hired them separately.