From the spectrum post:
▲ [AVAILABLE] Phase 4 - Protestors Clash as Attacks Continue
Started on Wednesday, November 27
The recent attacks in Stanton have ignited a movement to clean out the criminal element in Pyro. Citizens for Prosperity is hoping for a peaceful solution, while the Frontier Fighters militant group wants it done by force. Both groups need a hand before they jump:
Save Stanton Phase 4: Re-Supply Haul - Buy, mine, refine, or otherwise acquire commodities for Citizens of Prosperity and deliver them to the Pyro-Stanton jump point.
Save Stanton Phase 4: Supply Run - The Frontier Fighters need supplies before they leave. Buy, mine, refine, or otherwise acquire what they need and drop it off at the jump point.
Regardless of who you support, you must complete six Re-Supply or Supply Run missions before the end of the event.
The Save Stanton story will continue after 4.0 launches. Now's the time to choose your allegiance, as your choice will matter. Exclusive ship skins will be awarded to those who complete both parts of the story alongside another unique reward for those who just complete the Pyro section.
https://robertsspaceindustries.com/spectrum/community/SC/forum/1/thread/save-stanton
Some notes I'm seeing from other players.
You have to complete this mission 6 times.
Some missions have you going all over the place:
Terra Jump, to Magnus Jump, to Crusader, then to Pyro Jump
One of the commodities is only sold at the Magnus Jump Station.
Commodity stock is a globally shared resource, so jumping from one server to the next will not help (except to maybe find a TDD where there isn't as long of a line of players waiting to buy).