diff --git a/charts/kro/resource-groups/eks/rg-eks.yaml b/charts/kro/resource-groups/eks/rg-eks.yaml
index 64f9a0a..967656e 100644
--- a/charts/kro/resource-groups/eks/rg-eks.yaml
+++ b/charts/kro/resource-groups/eks/rg-eks.yaml
@@ -22,6 +22,8 @@ spec:
       domainName: string | default="cluster.example.com"
       vpc:
         create: boolean | default=true
+        az1Suffix: string | default="a"
+        az2Suffix: string | default="b"
         vpcCidr: string | default="10.0.0.0/16"
         publicSubnet1Cidr: string | default="10.0.1.0/24"
         publicSubnet2Cidr: string | default="10.0.2.0/24"
@@ -69,6 +71,8 @@ spec:
       spec:
         name: ${schema.spec.name}
         region: ${schema.spec.region}
+        az1Suffix: ${schema.spec.vpc.az1Suffix}
+        az2Suffix: ${schema.spec.vpc.az2Suffix}
         cidr:
           vpcCidr: ${schema.spec.vpc.vpcCidr}
           publicSubnet1Cidr: ${schema.spec.vpc.publicSubnet1Cidr}
diff --git a/charts/kro/resource-groups/eks/rg-vpc.yaml b/charts/kro/resource-groups/eks/rg-vpc.yaml
index 910bc45..bc35039 100644
--- a/charts/kro/resource-groups/eks/rg-vpc.yaml
+++ b/charts/kro/resource-groups/eks/rg-vpc.yaml
@@ -12,6 +12,8 @@ spec:
     spec:
       name: string
       region: string
+      az1Suffix: string | default="a"
+      az2Suffix: string | default="b"
       cidr:
         vpcCidr: string | default="10.0.0.0/16"
         publicSubnet1Cidr: string | default="10.0.1.0/24"
@@ -173,7 +175,7 @@ spec:
         annotations:
           services.k8s.aws/region: ${schema.spec.region}
       spec:
-        availabilityZone: ${schema.spec.region}a
+        availabilityZone: ${schema.spec.region}${schema.spec.az1Suffix}
         cidrBlock: ${schema.spec.cidr.publicSubnet1Cidr}
         mapPublicIPOnLaunch: true
         vpcID: ${vpc.status.vpcID}
@@ -194,7 +196,7 @@ spec:
         annotations:
           services.k8s.aws/region: ${schema.spec.region}
       spec:
-        availabilityZone: ${schema.spec.region}b
+        availabilityZone: ${schema.spec.region}${schema.spec.az2Suffix}
         cidrBlock: ${schema.spec.cidr.publicSubnet2Cidr}
         mapPublicIPOnLaunch: true
         vpcID: ${vpc.status.vpcID}
@@ -215,7 +217,7 @@ spec:
         annotations:
           services.k8s.aws/region: ${schema.spec.region}
       spec:
-        availabilityZone: ${schema.spec.region}a
+        availabilityZone: ${schema.spec.region}${schema.spec.az1Suffix}
         cidrBlock: ${schema.spec.cidr.privateSubnet1Cidr}
         vpcID: ${vpc.status.vpcID}
         routeTables:
@@ -235,7 +237,7 @@ spec:
         annotations:
           services.k8s.aws/region: ${schema.spec.region}
       spec:
-        availabilityZone: ${schema.spec.region}b
+        availabilityZone: ${schema.spec.region}${schema.spec.az2Suffix}
         cidrBlock: ${schema.spec.cidr.privateSubnet2Cidr}
         vpcID: ${vpc.status.vpcID}
         routeTables:
diff --git a/fleet/kro-values/tenants/tenant1/kro-clusters/values.yaml b/fleet/kro-values/tenants/tenant1/kro-clusters/values.yaml
index 3c4c9d1..8c77a93 100644
--- a/fleet/kro-values/tenants/tenant1/kro-clusters/values.yaml
+++ b/fleet/kro-values/tenants/tenant1/kro-clusters/values.yaml
@@ -20,6 +20,8 @@ clusters:
       k8sVersion: "1.34"
       vpc:
         create: true
+        az1Suffix: "a"
+        az2Suffix: "c"
         vpcCidr: "10.1.0.0/16"
         publicSubnet1Cidr: "10.1.1.0/24"
         publicSubnet2Cidr: "10.1.2.0/24"