Hi!
I saw this mod and I had to try it. What I love most about this mod is that it doesn't make anything super complicated, yet it makes things more realistic. This is a great mod.
I saw this message in my log file & traced it back to your mod:
Technology prerequisite 'advanced-material-processing' on 'low-density-structure' is redundant as 'chemical-science-pack' already contains it in its prerequisite tree.