diff --git a/Cobalt2/changelog.txt b/Cobalt2/changelog.txt
index 397581c..6081be3 100644
--- a/Cobalt2/changelog.txt
+++ b/Cobalt2/changelog.txt
@@ -1,4 +1,17 @@
 ---------------------------------------------------------------------------------------------------
+Version: 2.0.4
+Date: 01.11.2025
+  Bug Fixes:
+    - Fix K2 matter integration (thanks pla)
+---------------------------------------------------------------------------------------------------
+Version: 2.0.3
+Date: 21.10.2025
+  Changes:
+    - Switch to bz mods forks
+    - Add incompatibility with Space Age
+  Bug Fixes:
+    - Fix recipe with missing ingredient type
+---------------------------------------------------------------------------------------------------
 Version: 2.0.2
 Date: 13.10.2025
   Bug Fixes:
diff --git a/Cobalt2/data-util.lua b/Cobalt2/data-util.lua
index bcf164d..87fedb7 100644
--- a/Cobalt2/data-util.lua
+++ b/Cobalt2/data-util.lua
@@ -855,8 +855,8 @@ function util.replace_ingredients_prior_to(tech, old, new, multiplier)
   end
   util.remove_prior_unlocks(tech, old)
   for i, recipe in pairs(data.raw.recipe) do
-    if (recipe.enabled and recipe.enabled ~= 'false')
-      and (not recipe.hidden or recipe.hidden == 'true') -- probably don't want to change hidden recipes
+    if (recipe.enabled and recipe.enabled ~= false)
+      and (not recipe.hidden or recipe.hidden == true) -- probably don't want to change hidden recipes
       and string.sub(recipe.name, 1, 3) ~= 'se-' -- have to exlude SE in general :(
     then
       -- log("BZZZ due to 'enabled' replacing " .. old .. " with " .. new .." in " .. recipe.name) -- Handy Debug :|
diff --git a/Cobalt2/info.json b/Cobalt2/info.json
index f2bc814..d72b47a 100644
--- a/Cobalt2/info.json
+++ b/Cobalt2/info.json
@@ -1,19 +1,20 @@
 {
   "name": "Cobalt2",
-  "version": "2.0.2",
+  "version": "2.0.4",
   "factorio_version": "2.0",
   "title": "Cobalt",
+  "description": "Cobalt is a mod adding the element Cobalt.\n\nThis mod is inspired by Brevven's BZ mods.",
   "author": "Timeken, cackling fiend",
   "homepage": "https://discord.gg/ufvFUJtVwk",
   "dependencies": [
     "base >= 2.0.0",
     "? 248k-Redux",
     "? bobassembly",
-    "? bzfoundry",
+    "? bzfoundry2",
     "? Chromium2",
     "? Krastorio2",
     "? space-exploration",
-    "? Tantalite2"
-  ],
-  "description": "Cobalt is a mod adding the element Cobalt.\n\nThis mod is inspired by Brevven's BZ mods. \n\n Most if not all art is placeholder."
+    "? Tantalite2",
+    "! space-age"
+  ]
 }
\ No newline at end of file
diff --git a/Cobalt2/locale/en/Cobalt.cfg b/Cobalt2/locale/en/Cobalt.cfg
index 35d2ce3..4149de3 100644
--- a/Cobalt2/locale/en/Cobalt.cfg
+++ b/Cobalt2/locale/en/Cobalt.cfg
@@ -3,6 +3,7 @@ cobalt-refining=Cobalt refining
 cobalt-carbide=Cobalt carbide
 cobalt-electromagnet=Cobalt electromagnet
 cobalt-substrates=Cobalt substrates
+cobalt-matter-processing=Cobalt conversion
 
 [technology-description]
 
diff --git a/Cobalt2/prototypes/cobalt-matter.lua b/Cobalt2/prototypes/cobalt-matter.lua
index 3919dc0..13367bf 100644
--- a/Cobalt2/prototypes/cobalt-matter.lua
+++ b/Cobalt2/prototypes/cobalt-matter.lua
@@ -10,15 +10,16 @@ data:extend(
     icons =
     {
       {
-        icon = "__Krastorio2Assets__/technologies/matter-coal.png",
+        icon = "__Krastorio2Assets__/technologies/backgrounds/matter.png",
         icon_size = 256,
       },
       {
         icon = "__Cobalt2__/graphics/icons/cobaltite-ore.png",
         icon_size = 64,
-        scale = 1.4,
+        scale = 1,
       }
     },
+    effects = {},
     prerequisites = {"kr-matter-processing"},
     unit =
   	{
@@ -38,16 +39,16 @@ matter.make_recipes({
   material = { type = "item", name = "cobaltite-ore", amount = 10 },
   matter_count = 5,
   energy_required = 1,
-  need_stabilizer = false,
-  unlocked_by_technology = "cobalt-matter-processing"
+  needs_stabilizer = false,
+  unlocked_by = "cobalt-matter-processing"
 })
 
-matter.make_recipes({
+matter.make_deconversion_recipe({
   material = { type = "item", name = "cobalt-plate", amount = 10 },
   matter_count = 10,
   energy_required = 3,
-  only_deconversion = true,
-  need_stabilizer = true,
-  unlocked_by_technology = "cobalt-matter-processing"
+  -- only_deconversion = true,
+  needs_stabilizer = true,
+  unlocked_by = "cobalt-matter-processing"
 })
 end
\ No newline at end of file
diff --git a/Cobalt2/prototypes/cobalt-recipe-se.lua b/Cobalt2/prototypes/cobalt-recipe-se.lua
index f62062b..31c5ec0 100644
--- a/Cobalt2/prototypes/cobalt-recipe-se.lua
+++ b/Cobalt2/prototypes/cobalt-recipe-se.lua
@@ -49,7 +49,7 @@ if mods["space-exploration"] then
     },
     energy_required = 45,
     ingredients = {
-      {name = mods["Krastorio2"] and "enriched-cobalt" or "cobaltite-ore", amount = 24},
+      {type = "item", name = mods["Krastorio2"] and "enriched-cobalt" or "cobaltite-ore", amount = 24},
       {type = "fluid", name = "se-pyroflux", amount = 10},
     },
     enabled = false,
diff --git a/Cobalt2/prototypes/cobalt-recipe.lua b/Cobalt2/prototypes/cobalt-recipe.lua
index 097d68a..1ceb136 100644
--- a/Cobalt2/prototypes/cobalt-recipe.lua
+++ b/Cobalt2/prototypes/cobalt-recipe.lua
@@ -9,7 +9,7 @@ data:extend({{
 })
 
 local founding_category = "crafting"
-if mods["bzfoundry"] then
+if mods["bzfoundry2"] then
   founding_category = "founding"
 end