This chapter of the guide to Dragon Ball Z: Kakarot has a walkthrough for Friends Forever side quest.
Time frame: From Android Terror Arrives - Episode 8: Fleeting Normality to Episode 9: Gohan Unleashed
Reward: 136,715 EXP, 5x D Medal, Ultra Brain Bread
Where to start: North Mountains Area, as Goku.
After the conversation with the quest giver, you will be transferred to another location together. You now have to move your character again.
Go back to Darlinge Polynya and find the resources located between the rocks. Take them to the quest giver to complete the mission.