diff --git a/Rakefile b/Rakefile
index 643603f..537a0b8 100644
--- a/Rakefile
+++ b/Rakefile
@@ -96,6 +96,8 @@ task :update_nominees, [:network_name] do |_t, args|
 
   ring_pool = get_storage(rpc, metadata, 'darwinia_staking', 'ring_pool', nil, nil)
   kton_pool = get_storage(rpc, metadata, 'darwinia_staking', 'kton_pool', nil, nil)
+  nominee_commissions = get_nominee_commissions(rpc, metadata)
+  collators = get_collators(rpc, metadata)
 
   # 1. Get all nominators with their nominees
   # ---------------------------------------
@@ -147,10 +149,16 @@ task :update_nominees, [:network_name] do |_t, args|
     power = calc_power(staking_info[:staked_ring], staking_info[:staked_kton], ring_pool, kton_pool)
     [nominee_address, power]
   end.to_h
-  logger.debug JSON.pretty_generate(nominee_powers)
 
-  # 5. write to file
+  # 5. Set the collators committee
+  # ---------------------------------------
+  result = nominee_powers.keys.map do |key|
+    [key, { power: nominee_powers[key], commission: nominee_commissions[key], is_collator: collators.include?(key) }]
+  end.to_h
+  logger.debug JSON.pretty_generate(result)
+
+  # 6. write to file
   # ---------------------------------------
   logger.debug "writing #{network_name} nominees to file..."
-  write_data_to_file(nominee_powers, "#{network_name}-nominees.json")
+  write_data_to_file(result, "#{network_name}-nominees.json")
 end
diff --git a/src/account.rb b/src/account.rb
index 1f2597c..f00c17b 100644
--- a/src/account.rb
+++ b/src/account.rb
@@ -100,7 +100,10 @@ def staked_ring_in_deposits(ledger, deposits)
     0
   else
     # id => deposit
-    all_deposits = deposits.select { |deposit| deposit[:in_use] == true }.map { |deposit| [deposit[:id], deposit] }.to_h
+    all_deposits = deposits.select do |deposit|
+                     deposit[:in_use] == true
+                   end.map { |deposit| [deposit[:id], deposit] }.to_h
+    # all_deposits = deposits.map { |deposit| [deposit[:id], deposit] }.to_h
 
     deposit_ids_in_ledger = ledger[:staked_deposits] # + ledger[:unstaking_deposits]
     deposit_ids_in_ledger.reduce(0) do |sum, deposit_id|
@@ -180,11 +183,29 @@ def get_nominee_power(rpc, metadata, address)
   calc_power(total[:staked_ring], total[:staked_kton], ring_pool, kton_pool)
 end
 
+def get_nominee_commissions(rpc, metadata)
+  storages = get_storage(rpc, metadata, 'darwinia_staking', 'collators', nil, nil)
+  storages.map do |storage|
+    address = "0x#{storage[:storage_key][-40..]}"
+    [address, storage[:storage] / 10_000_000]
+  end.to_h
+end
+
+def get_collators(rpc, metadata)
+  storages = get_storage(rpc, metadata, 'darwinia_staking', 'exposures', nil, nil)
+  storages.map do |storage|
+    "0x#{storage[:storage_key][-40..]}"
+  end
+end
+
 # require_relative '../config/config'
 # config = get_config
 # crab_metadata = JSON.parse(File.read(config[:metadata][:crab]))
 # crab_rpc = config[:crab_rpc]
 
+# # collators
+# puts collators(crab_rpc, crab_metadata)
+
 # result = get_account_staking_info(
 #   crab_rpc,
 #   crab_metadata,
diff --git a/src/supply/kton.rb b/src/supply/kton.rb
index dcad8c0..d0ed490 100644
--- a/src/supply/kton.rb
+++ b/src/supply/kton.rb
@@ -5,17 +5,25 @@ def get_unmigrated_staked_and_unstaking_kton(rpc, metadata)
   ledgers =
     ScaleRb::HttpClient.get_storage2(
       rpc,
-      "AccountMigration",
-      "Ledgers",
+      'AccountMigration',
+      'Ledgers',
       nil,
-      metadata,
+      metadata
     )
-  ledgers.reduce(0) do |sum, ledger|
-    sum + ledger[:storage][:staked_kton] +
+  staking = ledgers.reduce(0) do |sum, ledger|
+    sum + ledger[:storage][:staked_kton]
+  end / 10**18
+
+  unstaking = ledgers.reduce(0) do |sum, ledger|
+    sum +
       ledger[:storage][:unstaking_kton].reduce(0) do |sum, item|
         sum + item[0] # item[0] is the amount, item[1] is the block number
       end
   end / 10**18
+
+  puts "staked kton(unmigrated): #{staking}"
+  puts "unstaking kton(unmigrated): #{unstaking}"
+  staking + unstaking
 end
 
 ####################################################
@@ -23,10 +31,10 @@ def get_unmigrated_staked_and_unstaking_kton(rpc, metadata)
 ####################################################
 def get_kton_total_insurance(rpc, metadata)
   ScaleRb::HttpClient
-    .get_storage2(rpc, "Assets", "Asset", nil, metadata)
+    .get_storage2(rpc, 'Assets', 'Asset', nil, metadata)
     .find do |item|
       item[:storage_key] ==
-        "0x682a59d51ab9e48a8c8cc418ff9708d2d34371a193a751eea5883e9553457b2e15ffd708b25d8ed5477f01d3f9277c360204000000000000"
+        '0x682a59d51ab9e48a8c8cc418ff9708d2d34371a193a751eea5883e9553457b2e15ffd708b25d8ed5477f01d3f9277c360204000000000000'
     end
     .dig(:storage, :supply) / 10**18
 end
@@ -35,15 +43,37 @@ def get_staked_and_unstaking_kton(rpc, metadata)
   ledgers =
     ScaleRb::HttpClient.get_storage2(
       rpc,
-      "DarwiniaStaking",
-      "Ledgers",
+      'DarwiniaStaking',
+      'Ledgers',
       nil,
-      metadata,
+      metadata
     )
-  ledgers.reduce(0) do |sum, ledger|
-    sum + ledger[:storage][:staked_kton] +
+  staking = ledgers.reduce(0) do |sum, ledger|
+    sum + ledger[:storage][:staked_kton]
+  end / 10**18
+
+  unstaking = ledgers.reduce(0) do |sum, ledger|
+    sum +
       ledger[:storage][:unstaking_kton].reduce(0) do |sum, item|
         sum + item[0] # item[0] is the amount, item[1] is the block number
       end
   end / 10**18
+
+  puts "staked kton: #{staking}"
+  puts "unstaking kton: #{unstaking}"
+  staking + unstaking
 end
+
+# require 'json'
+# require 'scale_rb'
+#
+# require_relative '../../config/config'
+# config = get_config
+# metadata = JSON.parse(File.read(config[:metadata][:darwinia]))
+# rpc = config[:darwinia_rpc]
+#
+# total = get_staked_and_unstaking_kton(rpc, metadata)
+# puts "total staking kton: #{total}"
+#
+# untotal = get_unmigrated_staked_and_unstaking_kton(rpc, metadata)
+# puts "total staking kton(unmigrated): #{untotal}"