After some digging around this appears to be the case Krastorio 1 hade the k- in front but Krastorio 2 doesn't so k-lithium, k-lithium-chloride and k-silicon got changed to lithium, lithium-chloride and silicon respectfully. So the mod doesn't see them as being bulk item and I had to add them manually to the bulk.lua file. Also would it be possible to add a generic enriched- to the bulk.lua for cases like brevven lead and titanium mods which add more enriched items.