diff --git a/markdown/bitburner.corporation.getunlockcost.md b/markdown/bitburner.corporation.getunlockcost.md
index 7bcc58a6e..bfc93e5ba 100644
--- a/markdown/bitburner.corporation.getunlockcost.md
+++ b/markdown/bitburner.corporation.getunlockcost.md
@@ -9,14 +9,14 @@ Get the cost to unlock a one-time unlockable upgrade.
 **Signature:**
 
 ```typescript
-getUnlockCost(upgradeName: string): number;
+getUnlockCost(upgradeName: CorpUnlockName): number;
 ```
 
 ## Parameters
 
 |  Parameter | Type | Description |
 |  --- | --- | --- |
-|  upgradeName | string | Name of the upgrade |
+|  upgradeName | [CorpUnlockName](./bitburner.corpunlockname.md) | Name of the upgrade |
 
 **Returns:**
 
diff --git a/markdown/bitburner.corporation.getupgradelevel.md b/markdown/bitburner.corporation.getupgradelevel.md
index 6ee37dec2..a5ac22c51 100644
--- a/markdown/bitburner.corporation.getupgradelevel.md
+++ b/markdown/bitburner.corporation.getupgradelevel.md
@@ -9,14 +9,14 @@ Get the level of a levelable upgrade.
 **Signature:**
 
 ```typescript
-getUpgradeLevel(upgradeName: string): number;
+getUpgradeLevel(upgradeName: CorpUpgradeName): number;
 ```
 
 ## Parameters
 
 |  Parameter | Type | Description |
 |  --- | --- | --- |
-|  upgradeName | string | Name of the upgrade |
+|  upgradeName | [CorpUpgradeName](./bitburner.corpupgradename.md) | Name of the upgrade |
 
 **Returns:**
 
diff --git a/markdown/bitburner.corporation.getupgradelevelcost.md b/markdown/bitburner.corporation.getupgradelevelcost.md
index 4b42ca424..2fc760e14 100644
--- a/markdown/bitburner.corporation.getupgradelevelcost.md
+++ b/markdown/bitburner.corporation.getupgradelevelcost.md
@@ -9,14 +9,14 @@ Get the cost to unlock the next level of a levelable upgrade.
 **Signature:**
 
 ```typescript
-getUpgradeLevelCost(upgradeName: string): number;
+getUpgradeLevelCost(upgradeName: CorpUpgradeName): number;
 ```
 
 ## Parameters
 
 |  Parameter | Type | Description |
 |  --- | --- | --- |
-|  upgradeName | string | Name of the upgrade |
+|  upgradeName | [CorpUpgradeName](./bitburner.corpupgradename.md) | Name of the upgrade |
 
 **Returns:**
 
diff --git a/markdown/bitburner.corporation.hasunlock.md b/markdown/bitburner.corporation.hasunlock.md
index 240e989a3..553a3c69b 100644
--- a/markdown/bitburner.corporation.hasunlock.md
+++ b/markdown/bitburner.corporation.hasunlock.md
@@ -9,14 +9,14 @@ Check if you have a one-time unlockable upgrade.
 **Signature:**
 
 ```typescript
-hasUnlock(upgradeName: string): boolean;
+hasUnlock(upgradeName: CorpUnlockName): boolean;
 ```
 
 ## Parameters
 
 |  Parameter | Type | Description |
 |  --- | --- | --- |
-|  upgradeName | string | Name of the upgrade |
+|  upgradeName | [CorpUnlockName](./bitburner.corpunlockname.md) | Name of the upgrade |
 
 **Returns:**
 
diff --git a/markdown/bitburner.corporation.levelupgrade.md b/markdown/bitburner.corporation.levelupgrade.md
index 67ed33d46..8def072d7 100644
--- a/markdown/bitburner.corporation.levelupgrade.md
+++ b/markdown/bitburner.corporation.levelupgrade.md
@@ -9,14 +9,14 @@ Level up an upgrade.
 **Signature:**
 
 ```typescript
-levelUpgrade(upgradeName: string): void;
+levelUpgrade(upgradeName: CorpUpgradeName): void;
 ```
 
 ## Parameters
 
 |  Parameter | Type | Description |
 |  --- | --- | --- |
-|  upgradeName | string | Name of the upgrade |
+|  upgradeName | [CorpUpgradeName](./bitburner.corpupgradename.md) | Name of the upgrade |
 
 **Returns:**
 
diff --git a/markdown/bitburner.corporation.purchaseunlock.md b/markdown/bitburner.corporation.purchaseunlock.md
index 4e718d22c..670530973 100644
--- a/markdown/bitburner.corporation.purchaseunlock.md
+++ b/markdown/bitburner.corporation.purchaseunlock.md
@@ -9,14 +9,14 @@ Unlock an upgrade.
 **Signature:**
 
 ```typescript
-purchaseUnlock(upgradeName: string): void;
+purchaseUnlock(upgradeName: CorpUnlockName): void;
 ```
 
 ## Parameters
 
 |  Parameter | Type | Description |
 |  --- | --- | --- |
-|  upgradeName | string | Name of the upgrade |
+|  upgradeName | [CorpUnlockName](./bitburner.corpunlockname.md) | Name of the upgrade |
 
 **Returns:**
 
diff --git a/markdown/bitburner.officeapi.getresearchcost.md b/markdown/bitburner.officeapi.getresearchcost.md
index 00e3384f6..d08893602 100644
--- a/markdown/bitburner.officeapi.getresearchcost.md
+++ b/markdown/bitburner.officeapi.getresearchcost.md
@@ -9,7 +9,7 @@ Get the cost to unlock a research.
 **Signature:**
 
 ```typescript
-getResearchCost(divisionName: string, researchName: string): number;
+getResearchCost(divisionName: string, researchName: CorpResearchName): number;
 ```
 
 ## Parameters
@@ -17,7 +17,7 @@ getResearchCost(divisionName: string, researchName: string): number;
 |  Parameter | Type | Description |
 |  --- | --- | --- |
 |  divisionName | string | Name of the division |
-|  researchName | string | Name of the research |
+|  researchName | [CorpResearchName](./bitburner.corpresearchname.md) | Name of the research |
 
 **Returns:**
 
diff --git a/markdown/bitburner.officeapi.hasresearched.md b/markdown/bitburner.officeapi.hasresearched.md
index fc4ed4833..2b942d734 100644
--- a/markdown/bitburner.officeapi.hasresearched.md
+++ b/markdown/bitburner.officeapi.hasresearched.md
@@ -9,7 +9,7 @@ Check if you unlocked a research.
 **Signature:**
 
 ```typescript
-hasResearched(divisionName: string, researchName: string): boolean;
+hasResearched(divisionName: string, researchName: CorpResearchName): boolean;
 ```
 
 ## Parameters
@@ -17,7 +17,7 @@ hasResearched(divisionName: string, researchName: string): boolean;
 |  Parameter | Type | Description |
 |  --- | --- | --- |
 |  divisionName | string | Name of the division |
-|  researchName | string | Name of the research |
+|  researchName | [CorpResearchName](./bitburner.corpresearchname.md) | Name of the research |
 
 **Returns:**
 
diff --git a/markdown/bitburner.officeapi.research.md b/markdown/bitburner.officeapi.research.md
index d809497ed..4469e3923 100644
--- a/markdown/bitburner.officeapi.research.md
+++ b/markdown/bitburner.officeapi.research.md
@@ -9,7 +9,7 @@ Purchase a research.
 **Signature:**
 
 ```typescript
-research(divisionName: string, researchName: string): void;
+research(divisionName: string, researchName: CorpResearchName): void;
 ```
 
 ## Parameters
@@ -17,7 +17,7 @@ research(divisionName: string, researchName: string): void;
 |  Parameter | Type | Description |
 |  --- | --- | --- |
 |  divisionName | string | Name of the division |
-|  researchName | string | Name of the research |
+|  researchName | [CorpResearchName](./bitburner.corpresearchname.md) | Name of the research |
 
 **Returns:**
 
diff --git a/markdown/bitburner.warehouseapi.bulkpurchase.md b/markdown/bitburner.warehouseapi.bulkpurchase.md
index 7bc84355b..5bf613601 100644
--- a/markdown/bitburner.warehouseapi.bulkpurchase.md
+++ b/markdown/bitburner.warehouseapi.bulkpurchase.md
@@ -9,7 +9,7 @@ Set material to bulk-buy.
 **Signature:**
 
 ```typescript
-bulkPurchase(divisionName: string, city: CityName, materialName: string, amt: number): void;
+bulkPurchase(divisionName: string, city: CityName, materialName: CorpMaterialName, amt: number): void;
 ```
 
 ## Parameters
@@ -18,7 +18,7 @@ bulkPurchase(divisionName: string, city: CityName, materialName: string, amt: nu
 |  --- | --- | --- |
 |  divisionName | string | Name of the division |
 |  city | [CityName](./bitburner.cityname.md) | Name of the city |
-|  materialName | string | Name of the material |
+|  materialName | [CorpMaterialName](./bitburner.corpmaterialname.md) | Name of the material |
 |  amt | number | Amount of material to buy |
 
 **Returns:**
diff --git a/markdown/bitburner.warehouseapi.buymaterial.md b/markdown/bitburner.warehouseapi.buymaterial.md
index df4b98df4..618115155 100644
--- a/markdown/bitburner.warehouseapi.buymaterial.md
+++ b/markdown/bitburner.warehouseapi.buymaterial.md
@@ -9,7 +9,7 @@ Set material buy data.
 **Signature:**
 
 ```typescript
-buyMaterial(divisionName: string, city: CityName, materialName: string, amt: number): void;
+buyMaterial(divisionName: string, city: CityName, materialName: CorpMaterialName, amt: number): void;
 ```
 
 ## Parameters
@@ -18,7 +18,7 @@ buyMaterial(divisionName: string, city: CityName, materialName: string, amt: num
 |  --- | --- | --- |
 |  divisionName | string | Name of the division |
 |  city | [CityName](./bitburner.cityname.md) | Name of the city |
-|  materialName | string | Name of the material |
+|  materialName | [CorpMaterialName](./bitburner.corpmaterialname.md) | Name of the material |
 |  amt | number | Amount of material to buy |
 
 **Returns:**
diff --git a/markdown/bitburner.warehouseapi.cancelexportmaterial.md b/markdown/bitburner.warehouseapi.cancelexportmaterial.md
index ec85d419a..c56ce580f 100644
--- a/markdown/bitburner.warehouseapi.cancelexportmaterial.md
+++ b/markdown/bitburner.warehouseapi.cancelexportmaterial.md
@@ -14,7 +14,7 @@ cancelExportMaterial(
     sourceCity: CityName,
     targetDivision: string,
     targetCity: CityName,
-    materialName: string,
+    materialName: CorpMaterialName,
   ): void;
 ```
 
@@ -26,7 +26,7 @@ cancelExportMaterial(
 |  sourceCity | [CityName](./bitburner.cityname.md) | Source city |
 |  targetDivision | string | Target division |
 |  targetCity | [CityName](./bitburner.cityname.md) | Target city |
-|  materialName | string | Name of the material |
+|  materialName | [CorpMaterialName](./bitburner.corpmaterialname.md) | Name of the material |
 
 **Returns:**
 
diff --git a/markdown/bitburner.warehouseapi.exportmaterial.md b/markdown/bitburner.warehouseapi.exportmaterial.md
index c4f183af0..70222f53e 100644
--- a/markdown/bitburner.warehouseapi.exportmaterial.md
+++ b/markdown/bitburner.warehouseapi.exportmaterial.md
@@ -14,7 +14,7 @@ exportMaterial(
     sourceCity: CityName,
     targetDivision: string,
     targetCity: CityName,
-    materialName: string,
+    materialName: CorpMaterialName,
     amt: number | string,
   ): void;
 ```
@@ -27,7 +27,7 @@ exportMaterial(
 |  sourceCity | [CityName](./bitburner.cityname.md) | Source city |
 |  targetDivision | string | Target division |
 |  targetCity | [CityName](./bitburner.cityname.md) | Target city |
-|  materialName | string | Name of the material |
+|  materialName | [CorpMaterialName](./bitburner.corpmaterialname.md) | Name of the material |
 |  amt | number \| string | Amount of material to export. |
 
 **Returns:**
diff --git a/markdown/bitburner.warehouseapi.getmaterial.md b/markdown/bitburner.warehouseapi.getmaterial.md
index bcc685c8f..0d2c016be 100644
--- a/markdown/bitburner.warehouseapi.getmaterial.md
+++ b/markdown/bitburner.warehouseapi.getmaterial.md
@@ -9,7 +9,7 @@ Get material data.
 **Signature:**
 
 ```typescript
-getMaterial(divisionName: string, city: CityName, materialName: string): Material;
+getMaterial(divisionName: string, city: CityName, materialName: CorpMaterialName): Material;
 ```
 
 ## Parameters
@@ -18,7 +18,7 @@ getMaterial(divisionName: string, city: CityName, materialName: string): Materia
 |  --- | --- | --- |
 |  divisionName | string | Name of the division |
 |  city | [CityName](./bitburner.cityname.md) | Name of the city |
-|  materialName | string | Name of the material |
+|  materialName | [CorpMaterialName](./bitburner.corpmaterialname.md) | Name of the material |
 
 **Returns:**
 
diff --git a/markdown/bitburner.warehouseapi.limitmaterialproduction.md b/markdown/bitburner.warehouseapi.limitmaterialproduction.md
index ac0476b4c..753d2d12b 100644
--- a/markdown/bitburner.warehouseapi.limitmaterialproduction.md
+++ b/markdown/bitburner.warehouseapi.limitmaterialproduction.md
@@ -9,7 +9,7 @@ Limit material production.
 **Signature:**
 
 ```typescript
-limitMaterialProduction(divisionName: string, city: CityName, materialName: string, qty: number): void;
+limitMaterialProduction(divisionName: string, city: CityName, materialName: CorpMaterialName, qty: number): void;
 ```
 
 ## Parameters
@@ -18,7 +18,7 @@ limitMaterialProduction(divisionName: string, city: CityName, materialName: stri
 |  --- | --- | --- |
 |  divisionName | string | Name of the division. |
 |  city | [CityName](./bitburner.cityname.md) | Name of the city. |
-|  materialName | string | Name of the material. |
+|  materialName | [CorpMaterialName](./bitburner.corpmaterialname.md) | Name of the material. |
 |  qty | number | Amount to limit to. Pass a negative value to remove the limit instead. |
 
 **Returns:**
diff --git a/markdown/bitburner.warehouseapi.sellmaterial.md b/markdown/bitburner.warehouseapi.sellmaterial.md
index aa9440d63..ea34a1640 100644
--- a/markdown/bitburner.warehouseapi.sellmaterial.md
+++ b/markdown/bitburner.warehouseapi.sellmaterial.md
@@ -9,7 +9,7 @@ Set material sell data.
 **Signature:**
 
 ```typescript
-sellMaterial(divisionName: string, city: CityName, materialName: string, amt: string, price: string): void;
+sellMaterial(divisionName: string, city: CityName, materialName: CorpMaterialName, amt: string, price: string): void;
 ```
 
 ## Parameters
@@ -18,7 +18,7 @@ sellMaterial(divisionName: string, city: CityName, materialName: string, amt: st
 |  --- | --- | --- |
 |  divisionName | string | Name of the division |
 |  city | [CityName](./bitburner.cityname.md) | Name of the city |
-|  materialName | string | Name of the material |
+|  materialName | [CorpMaterialName](./bitburner.corpmaterialname.md) | Name of the material |
 |  amt | string | Amount to sell, can be "MAX" |
 |  price | string | Price to sell, can be "MP" |
 
diff --git a/markdown/bitburner.warehouseapi.setmaterialmarketta1.md b/markdown/bitburner.warehouseapi.setmaterialmarketta1.md
index e9ba44500..9c69f1db5 100644
--- a/markdown/bitburner.warehouseapi.setmaterialmarketta1.md
+++ b/markdown/bitburner.warehouseapi.setmaterialmarketta1.md
@@ -9,7 +9,7 @@ Set Market-TA1 for a material.
 **Signature:**
 
 ```typescript
-setMaterialMarketTA1(divisionName: string, city: CityName, materialName: string, on: boolean): void;
+setMaterialMarketTA1(divisionName: string, city: CityName, materialName: CorpMaterialName, on: boolean): void;
 ```
 
 ## Parameters
@@ -18,7 +18,7 @@ setMaterialMarketTA1(divisionName: string, city: CityName, materialName: string,
 |  --- | --- | --- |
 |  divisionName | string | Name of the division |
 |  city | [CityName](./bitburner.cityname.md) | Name of the city |
-|  materialName | string | Name of the material |
+|  materialName | [CorpMaterialName](./bitburner.corpmaterialname.md) | Name of the material |
 |  on | boolean | Use true to enable, false otherwise. |
 
 **Returns:**
diff --git a/markdown/bitburner.warehouseapi.setmaterialmarketta2.md b/markdown/bitburner.warehouseapi.setmaterialmarketta2.md
index b1cbaaf13..628fd39c0 100644
--- a/markdown/bitburner.warehouseapi.setmaterialmarketta2.md
+++ b/markdown/bitburner.warehouseapi.setmaterialmarketta2.md
@@ -9,7 +9,7 @@ Set Market-TA2 for a material.
 **Signature:**
 
 ```typescript
-setMaterialMarketTA2(divisionName: string, city: CityName, materialName: string, on: boolean): void;
+setMaterialMarketTA2(divisionName: string, city: CityName, materialName: CorpMaterialName, on: boolean): void;
 ```
 
 ## Parameters
@@ -18,7 +18,7 @@ setMaterialMarketTA2(divisionName: string, city: CityName, materialName: string,
 |  --- | --- | --- |
 |  divisionName | string | Name of the division |
 |  city | [CityName](./bitburner.cityname.md) | Name of the city |
-|  materialName | string | Name of the material |
+|  materialName | [CorpMaterialName](./bitburner.corpmaterialname.md) | Name of the material |
 |  on | boolean | Use true to enable, false otherwise. |
 
 **Returns:**
diff --git a/markdown/bitburner.warehouseapi.setsmartsupplyoption.md b/markdown/bitburner.warehouseapi.setsmartsupplyoption.md
index 3cd6e0e21..5c0e61a1f 100644
--- a/markdown/bitburner.warehouseapi.setsmartsupplyoption.md
+++ b/markdown/bitburner.warehouseapi.setsmartsupplyoption.md
@@ -9,7 +9,12 @@ Set whether smart supply uses leftovers before buying.
 **Signature:**
 
 ```typescript
-setSmartSupplyOption(divisionName: string, city: CityName, materialName: string, option: CorpSmartSupplyOption): void;
+setSmartSupplyOption(
+    divisionName: string,
+    city: CityName,
+    materialName: CorpMaterialName,
+    option: CorpSmartSupplyOption,
+  ): void;
 ```
 
 ## Parameters
@@ -18,7 +23,7 @@ setSmartSupplyOption(divisionName: string, city: CityName, materialName: string,
 |  --- | --- | --- |
 |  divisionName | string | Name of the division |
 |  city | [CityName](./bitburner.cityname.md) | Name of the city |
-|  materialName | string | Name of the material |
+|  materialName | [CorpMaterialName](./bitburner.corpmaterialname.md) | Name of the material |
 |  option | [CorpSmartSupplyOption](./bitburner.corpsmartsupplyoption.md) | Smart supply option. Set "leftovers" to use leftovers, "imports" to use only imported materials, and "none" to not use stored materials. |
 
 **Returns:**
diff --git a/src/ScriptEditor/NetscriptDefinitions.d.ts b/src/ScriptEditor/NetscriptDefinitions.d.ts
index 09e3cf818..c43ed449c 100644
--- a/src/ScriptEditor/NetscriptDefinitions.d.ts
+++ b/src/ScriptEditor/NetscriptDefinitions.d.ts
@@ -8882,7 +8882,7 @@ export interface OfficeAPI {
    * @param divisionName - Name of the division
    * @param researchName - Name of the research
    */
-  research(divisionName: string, researchName: string): void;
+  research(divisionName: string, researchName: CorpResearchName): void;
 
   /**
    * Get data about an office.
@@ -8928,7 +8928,7 @@ export interface OfficeAPI {
    * @param researchName - Name of the research
    * @returns Cost
    */
-  getResearchCost(divisionName: string, researchName: string): number;
+  getResearchCost(divisionName: string, researchName: CorpResearchName): number;
 
   /**
    * Check if you unlocked a research.
@@ -8940,7 +8940,7 @@ export interface OfficeAPI {
    * @param researchName - Name of the research
    * @returns true is unlocked, false if not
    */
-  hasResearched(divisionName: string, researchName: string): boolean;
+  hasResearched(divisionName: string, researchName: CorpResearchName): boolean;
 
   /**
    * Set the job assignment for a job.
@@ -8996,7 +8996,7 @@ export interface WarehouseAPI {
    * @param amt - Amount to sell, can be "MAX"
    * @param price - Price to sell, can be "MP"
    */
-  sellMaterial(divisionName: string, city: CityName, materialName: string, amt: string, price: string): void;
+  sellMaterial(divisionName: string, city: CityName, materialName: CorpMaterialName, amt: string, price: string): void;
 
   /**
    * Set product sell data.
@@ -9054,7 +9054,12 @@ export interface WarehouseAPI {
    * @param materialName - Name of the material
    * @param option - Smart supply option. Set "leftovers" to use leftovers, "imports" to use only imported materials, and "none" to not use stored materials.
    */
-  setSmartSupplyOption(divisionName: string, city: CityName, materialName: string, option: CorpSmartSupplyOption): void;
+  setSmartSupplyOption(
+    divisionName: string,
+    city: CityName,
+    materialName: CorpMaterialName,
+    option: CorpSmartSupplyOption,
+  ): void;
 
   /**
    * Set material buy data.
@@ -9067,7 +9072,7 @@ export interface WarehouseAPI {
    * @param materialName - Name of the material
    * @param amt - Amount of material to buy
    */
-  buyMaterial(divisionName: string, city: CityName, materialName: string, amt: number): void;
+  buyMaterial(divisionName: string, city: CityName, materialName: CorpMaterialName, amt: number): void;
 
   /**
    * Set material to bulk-buy.
@@ -9080,7 +9085,7 @@ export interface WarehouseAPI {
    * @param materialName - Name of the material
    * @param amt - Amount of material to buy
    */
-  bulkPurchase(divisionName: string, city: CityName, materialName: string, amt: number): void;
+  bulkPurchase(divisionName: string, city: CityName, materialName: CorpMaterialName, amt: number): void;
 
   /**
    * Get warehouse data.
@@ -9118,7 +9123,7 @@ export interface WarehouseAPI {
    * @param materialName - Name of the material
    * @returns Material data
    */
-  getMaterial(divisionName: string, city: CityName, materialName: string): Material;
+  getMaterial(divisionName: string, city: CityName, materialName: CorpMaterialName): Material;
 
   /**
    * Set Market-TA1 for a material.
@@ -9131,7 +9136,7 @@ export interface WarehouseAPI {
    * @param materialName - Name of the material
    * @param on - Use true to enable, false otherwise.
    */
-  setMaterialMarketTA1(divisionName: string, city: CityName, materialName: string, on: boolean): void;
+  setMaterialMarketTA1(divisionName: string, city: CityName, materialName: CorpMaterialName, on: boolean): void;
 
   /**
    * Set Market-TA2 for a material.
@@ -9144,7 +9149,7 @@ export interface WarehouseAPI {
    * @param materialName - Name of the material
    * @param on - Use true to enable, false otherwise.
    */
-  setMaterialMarketTA2(divisionName: string, city: CityName, materialName: string, on: boolean): void;
+  setMaterialMarketTA2(divisionName: string, city: CityName, materialName: CorpMaterialName, on: boolean): void;
 
   /**
    * Set Market-TA1 for a product.
@@ -9188,7 +9193,7 @@ export interface WarehouseAPI {
     sourceCity: CityName,
     targetDivision: string,
     targetCity: CityName,
-    materialName: string,
+    materialName: CorpMaterialName,
     amt: number | string,
   ): void;
 
@@ -9209,7 +9214,7 @@ export interface WarehouseAPI {
     sourceCity: CityName,
     targetDivision: string,
     targetCity: CityName,
-    materialName: string,
+    materialName: CorpMaterialName,
   ): void;
 
   /**
@@ -9266,7 +9271,7 @@ export interface WarehouseAPI {
    * @param materialName - Name of the material.
    * @param qty - Amount to limit to. Pass a negative value to remove the limit instead.
    */
-  limitMaterialProduction(divisionName: string, city: CityName, materialName: string, qty: number): void;
+  limitMaterialProduction(divisionName: string, city: CityName, materialName: CorpMaterialName, qty: number): void;
 
   /**
    * Limit product production.
@@ -9371,7 +9376,7 @@ export interface Corporation extends WarehouseAPI, OfficeAPI {
    * @param upgradeName - Name of the upgrade
    * @returns true if unlocked and false if not
    */
-  hasUnlock(upgradeName: string): boolean;
+  hasUnlock(upgradeName: CorpUnlockName): boolean;
 
   /**
    * Get the cost to unlock a one-time unlockable upgrade.
@@ -9382,7 +9387,7 @@ export interface Corporation extends WarehouseAPI, OfficeAPI {
    * @param upgradeName - Name of the upgrade
    * @returns Cost of the upgrade
    */
-  getUnlockCost(upgradeName: string): number;
+  getUnlockCost(upgradeName: CorpUnlockName): number;
 
   /**
    * Get the level of a levelable upgrade.
@@ -9393,7 +9398,7 @@ export interface Corporation extends WarehouseAPI, OfficeAPI {
    * @param upgradeName - Name of the upgrade
    * @returns The level of the upgrade
    */
-  getUpgradeLevel(upgradeName: string): number;
+  getUpgradeLevel(upgradeName: CorpUpgradeName): number;
 
   /**
    * Get the cost to unlock the next level of a levelable upgrade.
@@ -9404,7 +9409,7 @@ export interface Corporation extends WarehouseAPI, OfficeAPI {
    * @param upgradeName - Name of the upgrade
    * @returns Cost of the upgrade
    */
-  getUpgradeLevelCost(upgradeName: string): number;
+  getUpgradeLevelCost(upgradeName: CorpUpgradeName): number;
 
   /**
    * Get an offer for investment based on current corporation valuation.
@@ -9541,7 +9546,7 @@ export interface Corporation extends WarehouseAPI, OfficeAPI {
    *
    * @param upgradeName - Name of the upgrade
    */
-  purchaseUnlock(upgradeName: string): void;
+  purchaseUnlock(upgradeName: CorpUnlockName): void;
 
   /**
    * Level up an upgrade.
@@ -9551,7 +9556,7 @@ export interface Corporation extends WarehouseAPI, OfficeAPI {
    *
    * @param upgradeName - Name of the upgrade
    */
-  levelUpgrade(upgradeName: string): void;
+  levelUpgrade(upgradeName: CorpUpgradeName): void;
 
   /**
    * Issue dividends.