over 4 years ago - Avanya - Direct link
Originally posted by Promethian: You are using the wrong district type. I'll step by step it for you.

1: Districts and areas button
2: Districts painting tools tab
3: Paint industry area option (do so)
4: Garbage and Industry button
5: Forest industry tab
6: Forestry main building (placing this will specialize the painted district)

I'm just gonna add a picture to further help find the right too.
https://i.imgur.com/3Nv77k6.jpg