diff --git a/src/Corporation/Corporation.tsx b/src/Corporation/Corporation.tsx
index d35b1dd64..f7f3df41c 100644
--- a/src/Corporation/Corporation.tsx
+++ b/src/Corporation/Corporation.tsx
@@ -34,8 +34,8 @@ interface IParams {
     name?: string;
 }
 
-let corpRouting: any;
-let companyManagementDiv: any;
+let corpRouting: CorporationRouting;
+let companyManagementDiv: HTMLDivElement | null = null;
 
 export class Corporation {
     name = "The Corporation";
@@ -379,7 +379,7 @@ export class Corporation {
             id:"cmpy-mgmt-container",
             position:"fixed",
             class:"generic-menupage-container",
-        });
+        }) as HTMLDivElement;
         const game = document.getElementById("entire-game-container");
         if(game)
             game.appendChild(companyManagementDiv);
diff --git a/src/Corporation/IIndustry.ts b/src/Corporation/IIndustry.ts
index dd82016d3..298d92fd5 100644
--- a/src/Corporation/IIndustry.ts
+++ b/src/Corporation/IIndustry.ts
@@ -57,7 +57,7 @@ export interface IIndustry {
     processProduct(marketCycles: number, product: Product, corporation: ICorporation): number;
     discontinueProduct(product: Product): void;
     upgrade(upgrade: IndustryUpgrade, refs: {corporation: ICorporation; office: OfficeSpace}): void;
-    getOfficeProductivity(office: OfficeSpace, params?: any): number;
+    getOfficeProductivity(office: OfficeSpace, params?: {forProduct?: boolean}): number;
     getBusinessFactor(office: OfficeSpace): number;
     getAdvertisingFactors(): [number, number, number, number];
     getMarketFactor(mat: {dmd: number; cmp: number}): number;
diff --git a/src/Corporation/Industry.ts b/src/Corporation/Industry.ts
index 92d3ff004..49c68203d 100644
--- a/src/Corporation/Industry.ts
+++ b/src/Corporation/Industry.ts
@@ -1185,7 +1185,7 @@ export class Industry implements IIndustry {
     }
 
     // Returns how much of a material can be produced based of office productivity (employee stats)
-    getOfficeProductivity(office: OfficeSpace, params: any = {}): number {
+    getOfficeProductivity(office: OfficeSpace, params: {forProduct?: boolean} = {}): number {
         const opProd    = office.employeeProd[EmployeePositions.Operations];
         const engrProd  = office.employeeProd[EmployeePositions.Engineer];
         const mgmtProd  = office.employeeProd[EmployeePositions.Management]
diff --git a/src/Corporation/OfficeSpace.ts b/src/Corporation/OfficeSpace.ts
index ed3655f50..4a419ffea 100644
--- a/src/Corporation/OfficeSpace.ts
+++ b/src/Corporation/OfficeSpace.ts
@@ -38,7 +38,7 @@ export class OfficeSpace {
     minHap = 0;
     maxHap = 100;
     maxMor = 100;
-    employees: any[] = [];
+    employees: Employee[] = [];
     employeeProd: {[key: string]: number} = {
         [EmployeePositions.Operations]:   0,
         [EmployeePositions.Engineer]:     0,
@@ -186,7 +186,7 @@ export class OfficeSpace {
             innerHTML: "Select one of the following candidates for hire:",
         });
 
-        function createEmpDiv(employee: any, office: any): HTMLElement {
+        function createEmpDiv(employee: Employee, office: OfficeSpace): HTMLElement {
             const div = createElement("div", {
                 class:"cmpy-mgmt-find-employee-option",
                 innerHTML:  "Intelligence: " + formatNumber(employee.int, 1) + "<br>" +
diff --git a/src/Corporation/ui/ThrowPartyPopup.tsx b/src/Corporation/ui/ThrowPartyPopup.tsx
index 0b18186c7..6f6fc774d 100644
--- a/src/Corporation/ui/ThrowPartyPopup.tsx
+++ b/src/Corporation/ui/ThrowPartyPopup.tsx
@@ -27,9 +27,9 @@ export function ThrowPartyPopup(props: IProps): React.ReactElement {
                 dialogBoxCreate("You don't have enough company funds to throw a party!");
             } else {
                 props.corp.funds = props.corp.funds.minus(totalCost);
-                let mult;
-                for (let fooit = 0; fooit < props.office.employees.length; ++fooit) {
-                    mult = props.office.employees[fooit].throwParty(cost);
+                let mult = 0;
+                for (let i = 0; i < props.office.employees.length; ++i) {
+                    mult = props.office.employees[i].throwParty(cost);
                 }
                 dialogBoxCreate("You threw a party for the office! The morale and happiness " +
                                 "of each employee increased by " + numeralWrapper.formatPercentage((mult-1)));