diff --git a/governance/remote_executor/programs/remote-executor/Cargo.toml b/governance/remote_executor/programs/remote-executor/Cargo.toml
index 08b338a3bf..81b7cb31e9 100644
--- a/governance/remote_executor/programs/remote-executor/Cargo.toml
+++ b/governance/remote_executor/programs/remote-executor/Cargo.toml
@@ -28,6 +28,7 @@ mantis_testnet = []
 sonic_devnet = []
 sonic_testnet = []
 atlas_testnet = []
+mantis_mainnet = []
 
 [dependencies]
 anchor-lang = {version = "0.25.0", features = ["init-if-needed"]}
diff --git a/governance/remote_executor/programs/remote-executor/src/state/governance_payload.rs b/governance/remote_executor/programs/remote-executor/src/state/governance_payload.rs
index ddf670f607..fa2167c0f1 100644
--- a/governance/remote_executor/programs/remote-executor/src/state/governance_payload.rs
+++ b/governance/remote_executor/programs/remote-executor/src/state/governance_payload.rs
@@ -17,6 +17,7 @@ pub const CHAIN_ID_ARRAY: &[(&str, u16)] = &[
     ("sonic_devnet", 40005),
     ("sonic_testnet", 40006),
     ("atlas_testnet", 40007),
+    ("mantis_mainnet", 40008),
 ];
 
 #[cfg(any(feature = "pythnet", feature = "pythtest"))]
@@ -43,6 +44,9 @@ pub const CHAIN_ID: u16 = 40006;
 #[cfg(feature = "atlas_testnet")]
 pub const CHAIN_ID: u16 = 40007;
 
+#[cfg(feature = "mantis_mainnet")]
+pub const CHAIN_ID: u16 = 40008;
+
 #[derive(AnchorDeserialize, AnchorSerialize, Debug, PartialEq, Eq)]
 pub struct ExecutorPayload {
     pub header: GovernanceHeader,
diff --git a/governance/remote_executor/programs/remote-executor/src/state/posted_vaa.rs b/governance/remote_executor/programs/remote-executor/src/state/posted_vaa.rs
index f17fec6833..e410f582ae 100644
--- a/governance/remote_executor/programs/remote-executor/src/state/posted_vaa.rs
+++ b/governance/remote_executor/programs/remote-executor/src/state/posted_vaa.rs
@@ -24,6 +24,7 @@ impl Owner for AnchorVaa {
         feature = "sonic_devnet",
         feature = "sonic_testnet",
         feature = "atlas_testnet",
+        feature = "mantis_mainnet",
     ))]
     fn owner() -> Pubkey {
         Pubkey::from_str("HDwcJBJXjL9FpJ7UBsYBtaDjsBUhuLCUYoz3zr8SWWaQ").unwrap()
diff --git a/governance/xc_admin/packages/xc_admin_common/src/chains.ts b/governance/xc_admin/packages/xc_admin_common/src/chains.ts
index 5d9dfd9ad5..988af22b23 100644
--- a/governance/xc_admin/packages/xc_admin_common/src/chains.ts
+++ b/governance/xc_admin/packages/xc_admin_common/src/chains.ts
@@ -30,6 +30,8 @@ export const RECEIVER_CHAINS = {
   mantis_testnet: 40004,
   sonic_devnet: 40005,
   sonic_testnet: 40006,
+  atlas_testnet: 40007,
+  mantis_mainnet: 40008,
 
   cronos: 60001,
   kcc: 60002,