diff --git a/src/Corporation/Actions.ts b/src/Corporation/Actions.ts
index 081447d9d..498157744 100644
--- a/src/Corporation/Actions.ts
+++ b/src/Corporation/Actions.ts
@@ -174,8 +174,8 @@ export function SellProduct(product: Product, city: string, amt: string, price:
     //Dynamically evaluated quantity. First test to make sure its valid
     let qty = amt.replace(/\s+/g, "");
     qty = qty.replace(/[^-()\d/*+.MAXPROD]/g, "");
-    let temp = qty.replace(/MAX/g, "1");
-    temp = temp.replace(/PROD/g, "1");
+    let temp = qty.replace(/MAX/g, product.maxsll.toString());
+    temp = temp.replace(/PROD/g, product.data[city][1].toString());
     try {
       temp = eval(temp);
     } catch (e) {
diff --git a/src/Corporation/Industry.ts b/src/Corporation/Industry.ts
index 6cfd4ffbb..0405755ef 100644
--- a/src/Corporation/Industry.ts
+++ b/src/Corporation/Industry.ts
@@ -1188,8 +1188,7 @@ export class Industry implements IIndustry {
               }
             }
 
-            const maxSell =
-              0.5 *
+            product.maxsll = 0.5 *
               Math.pow(product.rat, 0.65) *
               marketFactor *
               corporation.getSalesMultiplier() *
@@ -1200,7 +1199,7 @@ export class Industry implements IIndustry {
             let sellAmt;
             if (product.sllman[city][0] && isString(product.sllman[city][1])) {
               //Sell amount is dynamically evaluated
-              let tmp = product.sllman[city][1].replace(/MAX/g, (maxSell + "").toUpperCase());
+              let tmp = product.sllman[city][1].replace(/MAX/g, (product.maxsll + "").toUpperCase());
               tmp = tmp.replace(/PROD/g, product.data[city][1]);
               try {
                 tmp = eval(tmp);
@@ -1214,16 +1213,16 @@ export class Industry implements IIndustry {
                     city +
                     " office. Sell price is being set to MAX",
                 );
-                tmp = maxSell;
+                tmp = product.maxsll;
               }
-              sellAmt = Math.min(maxSell, tmp);
+              sellAmt = Math.min(product.maxsll, tmp);
             } else if (product.sllman[city][0] && product.sllman[city][1] > 0) {
               //Sell amount is manually limited
-              sellAmt = Math.min(maxSell, product.sllman[city][1]);
+              sellAmt = Math.min(product.maxsll, product.sllman[city][1]);
             } else if (product.sllman[city][0] === false) {
               sellAmt = 0;
             } else {
-              sellAmt = maxSell;
+              sellAmt = product.maxsll;
             }
             if (sellAmt < 0) {
               sellAmt = 0;
diff --git a/src/Corporation/Product.ts b/src/Corporation/Product.ts
index 652f9a3e8..bca8e6468 100644
--- a/src/Corporation/Product.ts
+++ b/src/Corporation/Product.ts
@@ -96,6 +96,8 @@ export class Product {
   marketTa2 = false;
   marketTa2Price: IMap<number> = createCityMap<number>(0);
 
+  // Determines the maximum amount of this product that can be sold in one market cycle
+  maxsll = 0
   constructor(params: IConstructorParams = {}) {
     this.name = params.name ? params.name : "";
     this.dmd = params.demand ? params.demand : 0;