I encountered a problem when playing with Angel's mods and Bob's mods but couldn't be bothered to go through the entire Bob's Metal, Chemicals and Intermediates mod. It seems that when using Bob's Electronics mod you are required to use Ferric Chloric acid to create the circuit boards. The recipe is provided in the mod. However when using Angel's Petrochem this recipe gets disabled, and a new one gets put in it's place using the "Ferric Chloride Solution". When looking over the code from Angel's Petrochem, it seems that the recipe for the Ferric Chloric acid gets disabled by default but the mod checks specifically if Bob's Metal, Chemicals and Intermediates mod is loaded and then puts a new recipe in it's place. This causes a block in the game where you can not progress further into the game due to you not being able to make circuit boards since you have no "Ferric Chloric Fluid" from Bob's. This small mod fixes this by forcing Angel's Petrochem mod to move the "Ferric Chloric Fluid" recipe to its "Ferric Chloric Solution". Without checking if Bob's Metal, Chemicals and Intermediates mod is loaded. However Bob's Electronics IS required for this mod to start.

I would like to thank Angel's and Bob's for their work and mods. So the credit goes to them for making these mods. However I will poke a message to Angel's to inform him of the problem so he might integrate it into his own mod further removing the need for this mod. It's just here (temporarily) for those who need it.