diff --git a/src/Corporation/ui/MaterialElem.tsx b/src/Corporation/ui/MaterialElem.tsx
index cd72d29e6..67f250a7b 100644
--- a/src/Corporation/ui/MaterialElem.tsx
+++ b/src/Corporation/ui/MaterialElem.tsx
@@ -61,7 +61,9 @@ export function MaterialElem(props: IMaterialProps): React.ReactElement {
     division.newInd && Object.keys(division.reqMats).includes(mat.name) && mat.buy === 0 && mat.imp === 0;
 
   // Purchase material button
-  const purchaseButtonText = `Buy (${numeralWrapper.format(mat.buy, nfB)})`;
+  const purchaseButtonText = `Buy (${
+    mat.buy >= 1e33 ? mat.buy.toExponential(3) : numeralWrapper.format(mat.buy, nfB)
+  })`;
 
   // Sell material button
   let sellButtonText: JSX.Element;
@@ -125,7 +127,7 @@ export function MaterialElem(props: IMaterialProps): React.ReactElement {
           <Tooltip
             title={
               <Typography>
-                Buy: {numeralWrapper.format(mat.buy, nfB)} <br />
+                Buy: {mat.buy >= 1e33 ? mat.buy.toExponential(3) : numeralWrapper.format(mat.buy, nfB)} <br />
                 Prod: {numeralWrapper.format(mat.prd, nfB)} <br />
                 Sell: {numeralWrapper.format(mat.sll, nfB)} <br />
                 Export: {numeralWrapper.format(mat.totalExp, nfB)} <br />
@@ -138,7 +140,8 @@ export function MaterialElem(props: IMaterialProps): React.ReactElement {
             }
           >
             <Typography>
-              {mat.name}: {numeralWrapper.format(mat.qty, nfB)} ({numeralWrapper.format(totalGain, nfB)}/s)
+              {mat.name}: {numeralWrapper.format(mat.qty, nfB)} (
+              {totalGain >= 1e33 ? totalGain.toExponential(3) : numeralWrapper.format(totalGain, nfB)}/s)
             </Typography>
           </Tooltip>
           <Tooltip
diff --git a/src/NetscriptFunctions/Corporation.ts b/src/NetscriptFunctions/Corporation.ts
index e854e7bcb..617975aad 100644
--- a/src/NetscriptFunctions/Corporation.ts
+++ b/src/NetscriptFunctions/Corporation.ts
@@ -457,7 +457,8 @@ export function NetscriptCorporation(): InternalAPI<NSCorporation> {
       const cityName = helpers.city(ctx, "cityName", _cityName);
       const materialName = helpers.string(ctx, "materialName", _materialName);
       const amt = helpers.number(ctx, "amt", _amt);
-      if (amt < 0) throw new Error("Invalid value for amount field! Must be numeric and greater than 0");
+      if (amt < 0 || !Number.isFinite(amt))
+        throw new Error("Invalid value for amount field! Must be numeric and greater than 0");
       const material = getMaterial(divisionName, cityName, materialName);
       BuyMaterial(material, amt);
     },