diff --git a/industry/economies/firs_temperate.py b/industry/economies/firs_temperate.py
index ed7053b4..d80b5ff4 100644
--- a/industry/economies/firs_temperate.py
+++ b/industry/economies/firs_temperate.py
@@ -73,7 +73,7 @@ def get_economy(self, parameters):
                 fishing_grounds: PrimaryIndustry(fish),
                 dairy_farm: PrimaryIndustry((milk, livestock)),
                 orchard_and_piggery: PrimaryIndustry((fruit, livestock)),
-                chemical_plant: PrimaryIndustry(chemicals),  # FIXME
+                chemical_plant: PrimaryIndustry(chemicals),
                 steel_mill: SecondaryIndustry((coal, iron_ore, scrap_metal), steel),
                 dairy: SecondaryIndustry(milk, food),
                 glass_works: SecondaryIndustry((sand, chemicals), goods),
diff --git a/industry/economies/vanilla_subarctic.py b/industry/economies/vanilla_subarctic.py
index 902f0422..d2db5763 100644
--- a/industry/economies/vanilla_subarctic.py
+++ b/industry/economies/vanilla_subarctic.py
@@ -82,7 +82,10 @@ def get_economy(self, parameters):
             ret.graph[farm].boosters = engineering_supplies
             ret.graph[forest].boosters = engineering_supplies
 
-            ret.graph[printing_works].produces += (engineering_supplies,)
+            if parameters["POLICY"] in ("SELF_SUFFICIENT", "FREE_TRADE", "EXPORT"):
+                ret.graph[port].produces += (engineering_supplies,)
+            else:
+                ret.graph[printing_works].produces += (engineering_supplies,)
         elif parameters["PRIMARY_INDUSTRY_GROWTH"] == "GENERIC_SUPPLIES":
             ret.graph[coal_mine].boosters = engineering_supplies
             ret.graph[oil_wells].boosters = engineering_supplies
@@ -90,8 +93,14 @@ def get_economy(self, parameters):
             ret.graph[farm].boosters = farm_supplies
             ret.graph[forest].boosters = farm_supplies
 
-            ret.graph[printing_works].produces += (engineering_supplies,)
-            ret.graph[oil_refinery].produces += (farm_supplies,)
+            if parameters["POLICY"] in ("SELF_SUFFICIENT", "FREE_TRADE", "EXPORT"):
+                ret.graph[port].produces += (
+                    engineering_supplies,
+                    farm_supplies,
+                )
+            else:
+                ret.graph[printing_works].produces += (engineering_supplies,)
+                ret.graph[oil_refinery].produces += (farm_supplies,)
         elif parameters["PRIMARY_INDUSTRY_GROWTH"] == "GENERIC_SUPPLIES_PASSENGERS":
             ret.graph[coal_mine].boosters = engineering_supplies
             ret.graph[oil_wells].boosters = passengers
@@ -99,8 +108,14 @@ def get_economy(self, parameters):
             ret.graph[farm].boosters = farm_supplies
             ret.graph[forest].boosters = farm_supplies
 
-            ret.graph[printing_works].produces += (engineering_supplies,)
-            ret.graph[oil_refinery].produces += (farm_supplies,)
+            if parameters["POLICY"] in ("SELF_SUFFICIENT", "FREE_TRADE", "EXPORT"):
+                ret.graph[port].produces += (
+                    engineering_supplies,
+                    farm_supplies,
+                )
+            else:
+                ret.graph[printing_works].produces += (engineering_supplies,)
+                ret.graph[oil_refinery].produces += (farm_supplies,)
 
         self.default_worker_support(
             ret,
diff --git a/industry/economies/vanilla_subtropical.py b/industry/economies/vanilla_subtropical.py
index 27ae23dd..6c97f878 100644
--- a/industry/economies/vanilla_subtropical.py
+++ b/industry/economies/vanilla_subtropical.py
@@ -80,7 +80,10 @@ def get_economy(self, parameters):
             ret.graph[farm].boosters = engineering_supplies
             ret.graph[lumber_mill].boosters = engineering_supplies
 
-            ret.graph[factory].produces += (engineering_supplies,)
+            if parameters["POLICY"] in ("SELF_SUFFICIENT", "FREE_TRADE", "EXPORT"):
+                ret.graph[port].produces += (engineering_supplies,)
+            else:
+                ret.graph[factory].produces += (engineering_supplies,)
         elif parameters["PRIMARY_INDUSTRY_GROWTH"] == "GENERIC_SUPPLIES":
             ret.graph[diamond_mine].boosters = engineering_supplies
             ret.graph[oil_wells].boosters = engineering_supplies
@@ -88,8 +91,11 @@ def get_economy(self, parameters):
             ret.graph[farm].boosters = farm_supplies
             ret.graph[lumber_mill].boosters = farm_supplies
 
-            ret.graph[factory].produces += (engineering_supplies,)
-            ret.graph[oil_refinery].produces += (farm_supplies,)
+            if parameters["POLICY"] in ("SELF_SUFFICIENT", "FREE_TRADE", "EXPORT"):
+                ret.graph[port].produces += (engineering_supplies, farm_supplies)
+            else:
+                ret.graph[factory].produces += (engineering_supplies,)
+                ret.graph[oil_refinery].produces += (farm_supplies,)
 
         self.default_worker_support(
             ret,
diff --git a/industry/economies/vanilla_temperate.py b/industry/economies/vanilla_temperate.py
index 146232f6..1812c8cb 100644
--- a/industry/economies/vanilla_temperate.py
+++ b/industry/economies/vanilla_temperate.py
@@ -86,7 +86,10 @@ def get_economy(self, parameters):
             ret.graph[farm].boosters = engineering_supplies
             ret.graph[forest].boosters = engineering_supplies
 
-            ret.graph[factory].produces += (engineering_supplies,)
+            if parameters["POLICY"] in ("SELF_SUFFICIENT", "FREE_TRADE", "EXPORT"):
+                ret.graph[port].produces += (engineering_supplies,)
+            else:
+                ret.graph[factory].produces += (engineering_supplies,)
         elif parameters["PRIMARY_INDUSTRY_GROWTH"] == "GENERIC_SUPPLIES":
             ret.graph[coal_mine].boosters = engineering_supplies
             ret.graph[oil_wells].boosters = engineering_supplies
@@ -95,8 +98,11 @@ def get_economy(self, parameters):
             ret.graph[farm].boosters = farm_supplies
             ret.graph[forest].boosters = farm_supplies
 
-            ret.graph[factory].produces += (engineering_supplies,)
-            ret.graph[oil_refinery].produces += (farm_supplies,)
+            if parameters["POLICY"] in ("SELF_SUFFICIENT", "FREE_TRADE", "EXPORT"):
+                ret.graph[port].produces += (engineering_supplies, farm_supplies)
+            else:
+                ret.graph[factory].produces += (engineering_supplies,)
+                ret.graph[oil_refinery].produces += (farm_supplies,)
 
         self.default_worker_support(
             ret,