Index: DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/MacroStabilityCommon/MacroStabilityIo/ConversionHelper.cs
===================================================================
diff -u -r4565 -r4574
--- DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/MacroStabilityCommon/MacroStabilityIo/ConversionHelper.cs	(.../ConversionHelper.cs)	(revision 4565)
+++ DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/MacroStabilityCommon/MacroStabilityIo/ConversionHelper.cs	(.../ConversionHelper.cs)	(revision 4574)
@@ -287,14 +287,28 @@
             RatioCuPc = soil.RatioCuPc,
             StrengthIncreaseExponent = soil.StrengthIncreaseExponent,
             UseSoilClassification = false, // Soil type is not given so make sure it is not used.
-            BondStressCurve = null // these are not supported in DAM so set to null.
+            BondStressCurve = null, // these are not supported in DAM so set to null.
+            SigmaTauTable = new List<SigmaTauTablePoint>()
         };
+        
         if (soil.ShearStrengthModel != null)
         {
             macroStabilitySoil.ShearStrengthAbovePhreaticLevelModel = ConvertToMacroStabilityShearStrengthModel(soil.ShearStrengthModel.Value);
             macroStabilitySoil.ShearStrengthBelowPhreaticLevelModel = ConvertToMacroStabilityShearStrengthModel(soil.ShearStrengthModel.Value);
         }
 
+        if (soil.SigmaTauCurve != null)
+        {
+            foreach (SigmaTauPoint point in soil.SigmaTauCurve.Points)
+            {
+                macroStabilitySoil.SigmaTauTable.Add(new SigmaTauTablePoint
+                {
+                    Sigma = point.Sigma,
+                    Tau = point.Tau
+                });
+            }
+        }
+
         switch (soil.DilatancyType)
         {
             case DilatancyType.MinusPhi:
@@ -346,9 +360,19 @@
             //UsePop = true,
             //WhitesConstant = 0.00,
         };
-        damSoil.SigmaTauCurve = new SigmaTauCurve();
         
-        // TODO Add damSoil.SigmaTauCurve.Points based on soil.SigmaTauTable (to be implemented)
+        if (soil.SigmaTauTable != null)
+        {
+            damSoil.SigmaTauCurve = new SigmaTauCurve();
+            foreach (SigmaTauTablePoint point in soil.SigmaTauTable)
+            {
+                damSoil.SigmaTauCurve.Points.Add(new SigmaTauPoint
+                {
+                    Sigma = point.Sigma,
+                    Tau = point.Tau
+                });
+            }
+        }
         
         if (soil.Dilatancy.AlmostEquals(soil.FrictionAngle, tolerance))
         {
Index: DamEngine/trunk/src/Deltares.DamEngine.Calculators.Tests/KernelWrappers/MacroStabilityCommon/MacroStabilityIoTests.cs
===================================================================
diff -u -r4540 -r4574
--- DamEngine/trunk/src/Deltares.DamEngine.Calculators.Tests/KernelWrappers/MacroStabilityCommon/MacroStabilityIoTests.cs	(.../MacroStabilityIoTests.cs)	(revision 4540)
+++ DamEngine/trunk/src/Deltares.DamEngine.Calculators.Tests/KernelWrappers/MacroStabilityCommon/MacroStabilityIoTests.cs	(.../MacroStabilityIoTests.cs)	(revision 4574)
@@ -53,7 +53,7 @@
     };
 
     [Test]
-    public void GivenDamEngineDataModelWhenGoingToAndFromCSharpWrapperForInputTheDataIsEqual()
+    public void GivenDamEngineDataModelWhenGoingToAndFromCSharpWrapperForInputThenDataIsEqual()
     {
         // Given DamEngine data (DamProjectData)
         DamProjectData expectedDamProjectData = CreateExampleDamProjectData();
Index: DamEngine/trunk/src/Deltares.DamEngine.Data/Geotechnics/Soil.cs
===================================================================
diff -u -r4556 -r4574
--- DamEngine/trunk/src/Deltares.DamEngine.Data/Geotechnics/Soil.cs	(.../Soil.cs)	(revision 4556)
+++ DamEngine/trunk/src/Deltares.DamEngine.Data/Geotechnics/Soil.cs	(.../Soil.cs)	(revision 4574)
@@ -89,9 +89,9 @@
         CuBottom = aSoil.CuBottom;
         UsePop = aSoil.UsePop;
         StrengthIncreaseExponent = aSoil.StrengthIncreaseExponent;
-        if ((ShearStrengthModel == Geotechnics.ShearStrengthModel.SigmaTauCurve) && (aSoil.SigmaTauCurve != null))
+        SigmaTauCurve = new SigmaTauCurve();
+        if (aSoil.SigmaTauCurve != null)
         {
-            SigmaTauCurve = new SigmaTauCurve();
             SigmaTauCurve.Assign(aSoil.SigmaTauCurve);
         }
     }
@@ -269,7 +269,7 @@
     /// <summary>
     /// The sigma tau curve (for Shear Strength Model = SigmaTauCurve)  
     /// </summary>
-    public SigmaTauCurve SigmaTauCurve { get; set; }
+    public SigmaTauCurve SigmaTauCurve { get; set; } = new();
 
     #endregion
 }
\ No newline at end of file