Powersuit Modules missing item

I have version 2.0.1 and have completed the biofuel suit milestone. The suit and the modules appear in the equipment bench, but need a Base Module Component, which I cannot find anywhere - it is not in my recipe book. Am I missing something obvious, or has it gone missing?

OK. After another check on Tier 2, finally found the two sections for armour modules aand now have access. Sure I had looked further over, but I must have missed these for some reason. Sorry to have been a pain. Thanks