diff --git a/Cargo.lock b/Cargo.lock
index 46baeeb..aaca1b5 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -5824,6 +5824,9 @@ name = "pruner"
 version = "0.1.0"
 dependencies = [
  "anyhow",
+ "contract-interface",
+ "ethereum-types 0.14.1",
+ "ethers",
  "miner",
  "rand 0.8.5",
  "storage",
@@ -5831,6 +5834,7 @@ dependencies = [
  "task_executor",
  "tokio",
  "tracing",
+ "zgs_spec",
 ]
 
 [[package]]
diff --git a/common/contract-interface/src/lib.rs b/common/contract-interface/src/lib.rs
index 70a1adb..5e3badb 100644
--- a/common/contract-interface/src/lib.rs
+++ b/common/contract-interface/src/lib.rs
@@ -8,6 +8,12 @@ abigen!(ZgsFlow, "../../storage-contracts-abis/Flow.json");
 #[cfg(not(feature = "dev"))]
 abigen!(PoraMine, "../../storage-contracts-abis/PoraMine.json");
 
+#[cfg(not(feature = "dev"))]
+abigen!(
+    ChunkLinearReward,
+    "../../storage-contracts-abis/ChunkLinearReward.json"
+);
+
 #[cfg(feature = "dev")]
 abigen!(
     ZgsFlow,
@@ -19,3 +25,9 @@ abigen!(
     PoraMine,
     "../../0g-storage-contracts-dev/artifacts/contracts/miner/Mine.sol/PoraMine.json"
 );
+
+#[cfg(feature = "dev")]
+abigen!(
+    ChunkLinearReward,
+    "../../0g-storage-contracts-dev/artifacts/contracts/reward/ChunkLinearReward.sol/ChunkLinearReward.json"
+);
diff --git a/node/pruner/Cargo.toml b/node/pruner/Cargo.toml
index 7fe0e2f..5a50b72 100644
--- a/node/pruner/Cargo.toml
+++ b/node/pruner/Cargo.toml
@@ -11,4 +11,8 @@ anyhow = "1.0.86"
 tokio = "1.37.0"
 rand = "0.8.5"
 task_executor = { path = "../../common/task_executor" }
-tracing = "0.1.40"
\ No newline at end of file
+tracing = "0.1.40"
+ethereum-types = "0.14.1"
+contract-interface = { path = "../../common/contract-interface" }
+ethers = "^2"
+zgs_spec = { path = "../../common/spec" }
\ No newline at end of file
diff --git a/node/pruner/src/lib.rs b/node/pruner/src/lib.rs
index fa4e5a9..fe4bb93 100644
--- a/node/pruner/src/lib.rs
+++ b/node/pruner/src/lib.rs
@@ -1,18 +1,28 @@
-use anyhow::Result;
+use anyhow::{anyhow, bail, Result};
+use contract_interface::ChunkLinearReward;
+use ethereum_types::Address;
+use ethers::prelude::{Http, Provider};
 use miner::MinerMessage;
 use rand::Rng;
+use std::cmp::Ordering;
 use std::path::PathBuf;
 use std::sync::Arc;
 use std::time::Duration;
 use storage::config::{ShardConfig, SHARD_CONFIG_KEY};
+use storage::log_store::log_manager::PORA_CHUNK_SIZE;
 use storage_async::Store;
 use task_executor::TaskExecutor;
 use tokio::sync::{broadcast, mpsc};
 use tracing::{debug, info};
+use zgs_spec::SECTORS_PER_PRICING;
 
 // Start pruning when the db directory size exceeds 0.9 * limit.
 const PRUNE_THRESHOLD: f32 = 0.9;
 
+const FIRST_REWARDABLE_CHUNK_KEY: &str = "first_rewardable_chunk";
+
+const CHUNKS_PER_PRICING: u64 = (SECTORS_PER_PRICING / PORA_CHUNK_SIZE) as u64;
+
 #[derive(Debug)]
 pub struct PrunerConfig {
     pub shard_config: ShardConfig,
@@ -21,20 +31,32 @@ pub struct PrunerConfig {
     pub check_time: Duration,
     pub batch_size: usize,
     pub batch_wait_time: Duration,
+
+    pub rpc_endpoint_url: String,
+    pub reward_address: Address,
 }
 
 impl PrunerConfig {
     fn start_prune_size(&self) -> u64 {
         (self.max_num_sectors as f32 * PRUNE_THRESHOLD) as u64
     }
+
+    fn make_provider(&self) -> Result<Provider<Http>> {
+        Provider::<Http>::try_from(&self.rpc_endpoint_url)
+            .map_err(|e| anyhow!("Can not parse blockchain endpoint: {:?}", e))
+    }
 }
 
 pub struct Pruner {
     config: PrunerConfig,
+    first_rewardable_chunk: u64,
+
     store: Arc<Store>,
 
     sender: mpsc::UnboundedSender<PrunerMessage>,
     miner_sender: Option<broadcast::Sender<MinerMessage>>,
+
+    reward_contract: ChunkLinearReward<Provider<Http>>,
 }
 
 impl Pruner {
@@ -47,12 +69,19 @@ impl Pruner {
         if let Some(shard_config) = get_shard_config(store.as_ref()).await? {
             config.shard_config = shard_config;
         }
+        let first_rewardable_chunk = get_first_rewardable_chunk(store.as_ref())
+            .await?
+            .unwrap_or(0);
+        let reward_contract =
+            ChunkLinearReward::new(config.reward_address, Arc::new(config.make_provider()?));
         let (tx, rx) = mpsc::unbounded_channel();
         let pruner = Pruner {
             config,
+            first_rewardable_chunk,
             store,
             sender: tx,
             miner_sender,
+            reward_contract,
         };
         pruner.put_shard_config().await?;
         executor.spawn(
@@ -66,20 +95,27 @@ impl Pruner {
 
     pub async fn start(mut self) -> Result<()> {
         loop {
+            // Check shard config update and prune unneeded data.
             if let Some(delete_list) = self.maybe_update().await? {
                 info!(new_config = ?self.config.shard_config, "new shard config");
                 self.put_shard_config().await?;
-                let mut batch = Vec::with_capacity(self.config.batch_size);
-                let mut iter = delete_list.peekable();
-                while let Some(index) = iter.next() {
-                    batch.push(index);
-                    if batch.len() == self.config.batch_size || iter.peek().is_none() {
-                        debug!(start = batch.first(), end = batch.last(), "prune batch");
-                        self.store.remove_chunks_batch(&batch).await?;
-                        batch = Vec::with_capacity(self.config.batch_size);
-                        tokio::time::sleep(self.config.batch_wait_time).await;
-                    }
-                }
+                self.prune_in_batch(delete_list).await?;
+            }
+
+            // Check no reward chunks and prune.
+            let new_first_rewardable = self.reward_contract.first_rewardable_chunk().call().await?;
+            if let Some(no_reward_list) = self
+                .maybe_forward_first_rewardable(new_first_rewardable)
+                .await?
+            {
+                info!(
+                    ?new_first_rewardable,
+                    "first rewardable chunk moves forward, start pruning"
+                );
+                self.prune_in_batch(no_reward_list).await?;
+                self.put_first_rewardable_chunk_index(new_first_rewardable)
+                    .await?;
+                self.first_rewardable_chunk = new_first_rewardable;
             }
             tokio::time::sleep(self.config.check_time).await;
         }
@@ -92,7 +128,9 @@ impl Pruner {
             config = ?self.config.shard_config,
             "maybe_update"
         );
-        if current_size >= self.config.start_prune_size() {
+        if current_size < self.config.start_prune_size() {
+            Ok(None)
+        } else {
             // Update config and generate delete list should be done in a single lock to ensure
             // the list is complete.
             let config = &mut self.config.shard_config;
@@ -108,13 +146,52 @@ impl Pruner {
             config.num_shard *= 2;
 
             // Generate delete list
-            let flow_len = self.store.get_context().await?.1;
+            let flow_len = self
+                .store
+                .get_context()
+                .await?
+                .1
+                .div_ceil(PORA_CHUNK_SIZE as u64);
             let start_index = old_shard_id + (!rand_bit) as usize * old_num_shard;
-            return Ok(Some(Box::new(
+            Ok(Some(Box::new(
                 (start_index as u64..flow_len).step_by(config.num_shard),
-            )));
+            )))
         }
-        Ok(None)
+    }
+
+    async fn maybe_forward_first_rewardable(
+        &mut self,
+        new_first_rewardable: u64,
+    ) -> Result<Option<Box<dyn Send + Iterator<Item = u64>>>> {
+        match self.first_rewardable_chunk.cmp(&new_first_rewardable) {
+            Ordering::Less => Ok(Some(Box::new(
+                self.first_rewardable_chunk * CHUNKS_PER_PRICING
+                    ..new_first_rewardable * CHUNKS_PER_PRICING,
+            ))),
+            Ordering::Equal => Ok(None),
+            Ordering::Greater => {
+                bail!(
+                    "Unexpected first_rewardable_chunk revert: old={} new={}",
+                    self.first_rewardable_chunk,
+                    new_first_rewardable
+                );
+            }
+        }
+    }
+
+    async fn prune_in_batch(&self, to_prune: Box<dyn Send + Iterator<Item = u64>>) -> Result<()> {
+        let mut batch = Vec::with_capacity(self.config.batch_size);
+        let mut iter = to_prune.peekable();
+        while let Some(index) = iter.next() {
+            batch.push(index);
+            if batch.len() == self.config.batch_size || iter.peek().is_none() {
+                debug!(start = batch.first(), end = batch.last(), "prune batch");
+                self.store.remove_chunks_batch(&batch).await?;
+                batch = Vec::with_capacity(self.config.batch_size);
+                tokio::time::sleep(self.config.batch_wait_time).await;
+            }
+        }
+        Ok(())
     }
 
     async fn put_shard_config(&self) -> Result<()> {
@@ -130,12 +207,25 @@ impl Pruner {
             .set_config_encoded(&SHARD_CONFIG_KEY, &self.config.shard_config)
             .await
     }
+
+    async fn put_first_rewardable_chunk_index(
+        &self,
+        new_first_rewardable_chunk: u64,
+    ) -> Result<()> {
+        self.store
+            .set_config_encoded(&FIRST_REWARDABLE_CHUNK_KEY, &new_first_rewardable_chunk)
+            .await
+    }
 }
 
 async fn get_shard_config(store: &Store) -> Result<Option<ShardConfig>> {
     store.get_config_decoded(&SHARD_CONFIG_KEY).await
 }
 
+async fn get_first_rewardable_chunk(store: &Store) -> Result<Option<u64>> {
+    store.get_config_decoded(&FIRST_REWARDABLE_CHUNK_KEY).await
+}
+
 #[derive(Debug)]
 pub enum PrunerMessage {
     ChangeShardConfig(ShardConfig),
diff --git a/node/src/config/convert.rs b/node/src/config/convert.rs
index f33fdb5..eff984c 100644
--- a/node/src/config/convert.rs
+++ b/node/src/config/convert.rs
@@ -203,6 +203,10 @@ impl ZgsConfig {
     pub fn pruner_config(&self) -> Result<Option<PrunerConfig>, String> {
         if let Some(max_num_sectors) = self.db_max_num_sectors {
             let shard_config = self.shard_config()?;
+            let reward_address = self
+                .reward_contract_address
+                .parse::<ContractAddress>()
+                .map_err(|e| format!("Unable to parse reward_contract_address: {:?}", e))?;
             Ok(Some(PrunerConfig {
                 shard_config,
                 db_path: self.db_dir.clone().into(),
@@ -210,6 +214,8 @@ impl ZgsConfig {
                 check_time: Duration::from_secs(self.prune_check_time_s),
                 batch_size: self.prune_batch_size,
                 batch_wait_time: Duration::from_millis(self.prune_batch_wait_time_ms),
+                rpc_endpoint_url: self.blockchain_rpc_endpoint.clone(),
+                reward_address,
             }))
         } else {
             Ok(None)
diff --git a/node/src/config/mod.rs b/node/src/config/mod.rs
index 42ce4f1..715b976 100644
--- a/node/src/config/mod.rs
+++ b/node/src/config/mod.rs
@@ -65,7 +65,7 @@ build_config! {
     (db_dir, (String), "db".to_string())
     (db_max_num_sectors, (Option<usize>), None)
     (prune_check_time_s, (u64), 60)
-    (prune_batch_size, (usize), 1024)
+    (prune_batch_size, (usize), 16 * 1024)
     (prune_batch_wait_time_ms, (u64), 1000)
 
     // misc
@@ -79,6 +79,7 @@ build_config! {
     (miner_submission_gas, (Option<u64>), None)
     (miner_cpu_percentage, (u64), 100)
     (mine_iter_batch_size, (usize), 100)
+    (reward_contract_address, (String), "".to_string())
     (shard_position, (Option<String>), None)
 }
 
diff --git a/tests/pruner_test.py b/tests/pruner_test.py
index 395fc81..bac2a76 100755
--- a/tests/pruner_test.py
+++ b/tests/pruner_test.py
@@ -2,8 +2,10 @@
 import time
 
 from test_framework.test_framework import TestFramework
+from config.node_config import GENESIS_PRIV_KEY
+from mine_with_market_test import PRICE_PER_SECTOR
 from utility.submission import create_submission, submit_data
-from utility.utils import wait_until, assert_equal
+from utility.utils import wait_until, assert_equal, estimate_st_performance
 
 
 class PrunerTest(TestFramework):
@@ -13,34 +15,46 @@ class PrunerTest(TestFramework):
         self.num_nodes = 1
         self.zgs_node_configs[0] = {
             "db_max_num_sectors": 16 * 1024,
+            # "db_max_num_sectors": 32 * 1024 * 1024,
             "prune_check_time_s": 1,
-            "prune_batch_wait_time_ms": 10,
+            "prune_batch_wait_time_ms": 1,
         }
+        self.enable_market = True
+        self.mine_period = int(45 / self.block_time)
+        self.lifetime_seconds = 240
+        self.launch_wait_seconds = 15
+        self.log.info("Contract Info: Est. block time %.2f, Mine period %d", self.block_time, self.mine_period)
 
     def run_test(self):
         client = self.nodes[0]
 
         chunk_data = b"\x02" * 16 * 256 * 1024
+        # chunk_data = b"\x02" * 5 * 1024 * 1024 * 1024
         submissions, data_root = create_submission(chunk_data)
-        self.contract.submit(submissions)
+        self.contract.submit(submissions, tx_prarams = {"value": int(len(chunk_data) / 256 * PRICE_PER_SECTOR * 1.1)})
         wait_until(lambda: self.contract.num_submissions() == 1)
         wait_until(lambda: client.zgs_get_file_info(data_root) is not None)
 
         segment = submit_data(client, chunk_data)
         self.log.info("segment: %s", len(segment))
         # Wait for 1 sec for the shard config to be updated
-        time.sleep(1)
+        time.sleep(2)
         shard_config = client.rpc.zgs_getShardConfig()
         shard_id = int(shard_config["shardId"])
         num_shard = int(shard_config["numShard"])
 
+        # wait_until(lambda: self.reward_contract.first_rewardable_chunk() != 0, timeout=180)
+        # first_rewardable = self.reward_contract.first_rewardable_chunk() * 32 * 1024
+        # Wait for 1 sec for the no reward segments to be pruned.
+        time.sleep(1)
+        # Wait for chunks to be removed.
         for i in range(len(segment)):
             seg = client.zgs_download_segment(data_root, i * 1024, (i + 1) * 1024)
-            if i % num_shard == shard_id:
-                # base64 encoding size
-                assert_equal(len(seg), 349528)
-            else:
+            # if i < first_rewardable or i % num_shard != shard_id:
+            if i % num_shard != shard_id:
                 assert_equal(seg, None)
+            else:
+                assert_equal(len(seg), 349528)
 
 
 if __name__ == "__main__":
diff --git a/tests/shard_sync_test.py b/tests/shard_sync_test.py
index d838fb5..6c1c468 100755
--- a/tests/shard_sync_test.py
+++ b/tests/shard_sync_test.py
@@ -23,6 +23,7 @@ class PrunerTest(TestFramework):
             "db_max_num_sectors": 2 ** 30,
             "shard_position": "1/4"
         }
+        self.enable_market = True
 
     def run_test(self):
         client = self.nodes[0]
diff --git a/tests/test_framework/blockchain_node.py b/tests/test_framework/blockchain_node.py
index 8b1b544..0fbe1a5 100644
--- a/tests/test_framework/blockchain_node.py
+++ b/tests/test_framework/blockchain_node.py
@@ -253,7 +253,7 @@ class BlockchainNode(TestNode):
     def wait_for_transaction_receipt(self, w3, tx_hash, timeout=120, parent_hash=None):
         return w3.eth.wait_for_transaction_receipt(tx_hash, timeout)
 
-    def setup_contract(self, enable_market, mine_period):
+    def setup_contract(self, enable_market, mine_period, lifetime_seconds):
         w3 = Web3(HTTPProvider(self.rpc_url))
 
         account1 = w3.eth.account.from_key(GENESIS_PRIV_KEY)
@@ -314,9 +314,7 @@ class BlockchainNode(TestNode):
 
             return flow_contract, flow_initialize_hash, mine_contract, dummy_reward_contract
         
-        def deploy_with_market():
-            LIFETIME_MONTH = 1
-
+        def deploy_with_market(lifetime_seconds):
             self.log.debug("Start deploy contracts")
             
             mine_contract, _ = deploy_contract("PoraMineTest", [0])
@@ -325,7 +323,7 @@ class BlockchainNode(TestNode):
             market_contract, _ = deploy_contract("FixedPrice", [])
             self.log.debug("Market deployed")
             
-            reward_contract, _ =deploy_contract("ChunkLinearReward", [LIFETIME_MONTH * 31 * 86400])
+            reward_contract, _ = deploy_contract("ChunkLinearReward", [lifetime_seconds])
             self.log.debug("Reward deployed")
             
             flow_contract, _ = deploy_contract("FixedPriceFlow", [mine_period, 0])
@@ -336,8 +334,9 @@ class BlockchainNode(TestNode):
             mine_contract.functions.setTargetSubmissions(2).transact(TX_PARAMS)
             self.log.debug("Mine Initialized")
             
-            price_per_sector = int(LIFETIME_MONTH * 256 * 10 * 1_000_000_000_000_000_000 / 1024 / 1024 / 1024 / 12)
-            market_contract.functions.initialize(price_per_sector, flow_contract.address, reward_contract.address).transact(TX_PARAMS)
+            market_contract.functions.initialize(int(lifetime_seconds * 256 * 10 * 10 ** 18 /
+                                                     2 ** 30 / 12 / 31 / 86400),
+                                                 flow_contract.address, reward_contract.address).transact(TX_PARAMS)
             self.log.debug("Market Initialized")
             
             reward_contract.functions.initialize(market_contract.address, mine_contract.address).transact(TX_PARAMS)
@@ -353,7 +352,7 @@ class BlockchainNode(TestNode):
             return flow_contract, flow_initialize_hash, mine_contract, reward_contract
         
         if enable_market:
-            return deploy_with_market()
+            return deploy_with_market(lifetime_seconds)
         else:
             return deploy_no_market()
 
diff --git a/tests/test_framework/contract_proxy.py b/tests/test_framework/contract_proxy.py
index 8269b24..a9e05f1 100644
--- a/tests/test_framework/contract_proxy.py
+++ b/tests/test_framework/contract_proxy.py
@@ -17,11 +17,11 @@ class ContractProxy:
             else self.blockchain_nodes[node_idx].get_contract(self.contract_address)
         )
 
-    def _call(self, fn_name, node_idx, **args):
+    def _call(self, fn_name, node_idx, *args):
         assert node_idx < len(self.blockchain_nodes)
 
         contract = self._get_contract(node_idx)
-        return getattr(contract.functions, fn_name)(**args).call()
+        return getattr(contract.functions, fn_name)(*args).call()
 
     def _send(self, fn_name, node_idx, **args):
         assert node_idx < len(self.blockchain_nodes)
@@ -113,4 +113,10 @@ class RewardContractProxy(ContractProxy):
         return self._send_payable("donate", node_idx, value)
     
     def base_reward(self, node_idx = 0):
-        return self._call("baseReward", node_idx)
\ No newline at end of file
+        return self._call("baseReward", node_idx)
+
+    def first_rewardable_chunk(self, node_idx = 0):
+        return self._call("firstRewardableChunk", node_idx)
+
+    def reward_deadline(self, node_idx = 0):
+        return self._call("rewardDeadline", node_idx, 0)
diff --git a/tests/test_framework/test_framework.py b/tests/test_framework/test_framework.py
index 17183b9..c7c4619 100644
--- a/tests/test_framework/test_framework.py
+++ b/tests/test_framework/test_framework.py
@@ -51,6 +51,7 @@ class TestFramework:
         self.block_time = blockchain_node_type.block_time()
         self.enable_market = False
         self.mine_period = 100
+        self.lifetime_seconds = 3600
         self.launch_wait_seconds = 1
 
         # Set default binary path
@@ -171,7 +172,7 @@ class TestFramework:
                 wait_until(lambda: node.eth_blockNumber() is not None)
                 wait_until(lambda: int(node.eth_blockNumber(), 16) > 0)
 
-        contract, tx_hash, mine_contract, reward_contract = self.blockchain_nodes[0].setup_contract(self.enable_market, self.mine_period)
+        contract, tx_hash, mine_contract, reward_contract = self.blockchain_nodes[0].setup_contract(self.enable_market, self.mine_period, self.lifetime_seconds)
         self.contract = FlowContractProxy(contract, self.blockchain_nodes)
         self.mine_contract = MineContractProxy(mine_contract, self.blockchain_nodes)
         self.reward_contract = RewardContractProxy(reward_contract, self.blockchain_nodes)
@@ -197,6 +198,7 @@ class TestFramework:
                 updated_config,
                 self.contract.address(),
                 self.mine_contract.address(),
+                self.reward_contract.address(),
                 self.log,
             )
             self.nodes.append(node)
diff --git a/tests/test_framework/zgs_node.py b/tests/test_framework/zgs_node.py
index 19a4256..06e3c0c 100644
--- a/tests/test_framework/zgs_node.py
+++ b/tests/test_framework/zgs_node.py
@@ -22,6 +22,7 @@ class ZgsNode(TestNode):
         updated_config,
         log_contract_address,
         mine_contract_address,
+        reward_contract_address,
         log,
         rpc_timeout=10,
         libp2p_nodes=None,
@@ -43,6 +44,7 @@ class ZgsNode(TestNode):
             "network_libp2p_nodes": libp2p_nodes,
             "log_contract_address": log_contract_address,
             "mine_contract_address": mine_contract_address,
+            "reward_contract_address": reward_contract_address,
             "blockchain_rpc_endpoint": f"http://127.0.0.1:{blockchain_rpc_port(0)}",
         }
         # Set configs for this specific node.