diff --git a/GameData/ETT/EngTechTree.cfg b/GameData/ETT/EngTechTree.cfg
index 0aaeacd..88f6cb1 100644
--- a/GameData/ETT/EngTechTree.cfg
+++ b/GameData/ETT/EngTechTree.cfg
@@ -363,6 +363,9 @@ TechTree
 			part = MK3_Refinery
 			part = MK3_IndustrialSifter
 			part = OrbitalScanner
+			part = DIYKit
+			part = MobileWorkshop
+			part = SpaceCrane
 		}
 	}
 	RDNode