diff --git a/src/pages/data/production-chains-base.ts b/src/pages/data/production-chains-base.ts
index cc1cf38..511ca88 100644
--- a/src/pages/data/production-chains-base.ts
+++ b/src/pages/data/production-chains-base.ts
@@ -698,7 +698,7 @@ export const productionChainsBase: TieredProductionChain[] = [
         mermaidDefinition: endent`
         flowchart LR
         CharcoalKiln(<img src='${icons.charcoalKilnIcon}' class='icon-size' /><span class='ratio-count'>1</span>)
-        Iron(<span class='icon-flex-row'><img src='${icons.ironIcon}' class='icon-size' /><span class='icon-flex-col q-pl-sm'><span class='efficiency-perc'>50%</span><span class='ratio-count'>1</span></span></span>)
+        Iron(<span class='icon-flex-row'><img src='${icons.ironIcon}' class='icon-size' /><span class='icon-flex-col q-pl-sm'><span class='efficiency-perc'>16%</span><span class='ratio-count'>1</span></span></span>)
         Steel(<span class='icon-flex-row'><img src='${icons.steelIcon}' class='icon-size' /><span class='icon-flex-col q-pl-sm'><span class='efficiency-perc'>33%</span><span class='ratio-count'>1</span></span></span>)
         Weapons(<img src='${icons.weaponsIcon}' class='icon-size' /><span class='ratio-count'>1</span>)
         CharcoalKiln & Iron --> Steel --> Weapons
@@ -717,7 +717,7 @@ export const productionChainsBase: TieredProductionChain[] = [
         Dynamite
         Charcoal(<img src='${icons.charcoalKilnIcon}' class='icon-size' /><span class='ratio-count'>1</span>)
         Iron(<span class='icon-flex-row'><img src='${icons.ironIcon}' class='icon-size' /><span class='icon-flex-col q-pl-sm'><span class='efficiency-perc'>50%</span><span class='ratio-count'>1</span></span></span>)
-        Steel(<span class='icon-flex-row'><img src='${icons.steelIcon}' class='icon-size' /><span class='icon-flex-col q-pl-sm'><span class='efficiency-perc'>50%</span><span class='ratio-count'>1</span></span></span>)
+        Steel(<img src='${icons.steelIcon}' class='icon-size' /><span class='ratio-count'>1</span>)
         style HeavyWeapons stroke:#0675BD,stroke-width:5px,stroke-dasharray: 7 7
         Saltpeter --> Dynamite --> HeavyWeapons
         Pig --> Tallow --> Dynamite