diff --git a/gradle.properties b/gradle.properties
index 7b5730b..05d278a 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -117,7 +117,7 @@ minimizeShadowedDependencies = false
 # If disabled, won't rename the shadowed classes.
 relocateShadowedDependencies = false
 
-# Adds the GTNH maven, CurseMaven, IC2/Player maven, and some more well-known 1.7.10 repositories.
+# Adds the GTNH maven, CurseMaven, Modrinth, and some more well-known 1.7.10 repositories.
 includeWellKnownRepositories = true
 
 # Change these to your Maven coordinates if you want to publish to a custom Maven repository instead of the default GTNH Maven.
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index d64cd49..e644113 100644
Binary files a/gradle/wrapper/gradle-wrapper.jar and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index a80b22c..b82aa23 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.6-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.7-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
diff --git a/settings.gradle b/settings.gradle
index 16a5b4c..378da58 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -17,7 +17,7 @@ pluginManagement {
 }
 
 plugins {
-    id 'com.gtnewhorizons.gtnhsettingsconvention' version '1.0.14'
+    id 'com.gtnewhorizons.gtnhsettingsconvention' version '1.0.21'
 }
 
 
diff --git a/src/main/java/com/gtnewhorizon/gtnhlib/util/parsing/MathExpressionParser.java b/src/main/java/com/gtnewhorizon/gtnhlib/util/parsing/MathExpressionParser.java
index b108f37..1bb0316 100644
--- a/src/main/java/com/gtnewhorizon/gtnhlib/util/parsing/MathExpressionParser.java
+++ b/src/main/java/com/gtnewhorizon/gtnhlib/util/parsing/MathExpressionParser.java
@@ -19,8 +19,8 @@ public class MathExpressionParser {
      * strings that do not evaluate to a valid value. See {@link #parse(String, Context)} for an explanation of the
      * syntax.
      */
-    public static final Pattern EXPRESSION_PATTERN = Pattern.compile("[0-9.,  _’+\\-*/^()eEkKmMgGbBtT%]*");
-    // Character ' ' (non-breaking space) to support French locale thousands separator.
+    public static final Pattern EXPRESSION_PATTERN = Pattern.compile("[0-9., \u202F_’+\\-*/^()eEkKmMgGbBtTsSiI%]*");
+    // Character \u202F (' ') (non-breaking space) to support French locale thousands separator.
 
     private static final Context defaultContext = new Context();
 
@@ -178,6 +178,16 @@ public static double parse(String expr, Context ctx) {
                 case 'T':
                     handleSuffix(stack, Suffix.TRILLION, c, ctx);
                     break;
+
+                case 's':
+                case 'S':
+                    handleSuffix(stack, Suffix.STACK, c, ctx);
+                    break;
+                case 'i':
+                case 'I':
+                    handleSuffix(stack, Suffix.INGOT, c, ctx);
+                    break;
+
                 case '%':
                     handleSuffix(stack, Suffix.PERCENT, c, ctx);
                     break;
@@ -511,6 +521,8 @@ private enum Suffix {
         MILLION(1_000_000d),
         BILLION(1_000_000_000d),
         TRILLION(1_000_000_000_000d),
+        STACK(64),
+        INGOT(144),
         PERCENT(0); // Handled separately.
 
         public final double multiplier;
diff --git a/src/test/java/com/gtnewhorizon/gtnhlib/test/util/parsing/MathExpressionParserTest.java b/src/test/java/com/gtnewhorizon/gtnhlib/test/util/parsing/MathExpressionParserTest.java
index 6bd1488..4ad5ff0 100644
--- a/src/test/java/com/gtnewhorizon/gtnhlib/test/util/parsing/MathExpressionParserTest.java
+++ b/src/test/java/com/gtnewhorizon/gtnhlib/test/util/parsing/MathExpressionParserTest.java
@@ -141,6 +141,14 @@ void SuffixesBasic_Test() {
         assertEquals(10_000_000_000_000D, MathExpressionParser.parse("10t"));
         assertEquals(11_000_000_000_000D, MathExpressionParser.parse("11T"));
 
+        assertEquals(12 * 64, MathExpressionParser.parse("12s"));
+        assertEquals(13 * 64, MathExpressionParser.parse("13S"));
+        assertEquals(14 * 144, MathExpressionParser.parse("14i"));
+        assertEquals(15 * 144, MathExpressionParser.parse("15I"));
+
+        assertEquals(16 * 64 + 16, MathExpressionParser.parse("16.25s", ctxEN));
+        assertEquals(17 * 144 + 72, MathExpressionParser.parse("17.5i", ctxEN));
+
         assertEquals(2050, MathExpressionParser.parse("2.05k", ctxEN));
         assertEquals(50, MathExpressionParser.parse("0.05k", ctxEN));
         assertEquals(3000, MathExpressionParser.parse("3 k"));
@@ -157,6 +165,10 @@ void SuffixesArithmetic_Test() {
         assertEquals(3_000_000, MathExpressionParser.parse("3kk"));
         assertEquals(4_000_000_000D, MathExpressionParser.parse("4kkk"));
 
+        // Ideally we would want "1/9i" to parse into this too, but that would require a larger rework.
+        // Currently, suffixes are hardcoded to have the highest priority.
+        assertEquals(16, MathExpressionParser.parse("(1/9)i"));
+
         // Not supported, but shouldn't fail.
         assertEquals(6_000_000_000d, MathExpressionParser.parse("6km"));
         assertEquals(500_000, MathExpressionParser.parse("0.5ke3", ctxEN));