diff --git a/Surge/RuleSet/Custom/HK.txt b/Surge/RuleSet/Custom/HK.txt
index f9b699b..89053df 100644
--- a/Surge/RuleSet/Custom/HK.txt
+++ b/Surge/RuleSet/Custom/HK.txt
@@ -25,6 +25,9 @@
 # WeLab Bank
 .welab.bank
 
+# BOC HK
+.bochk.com
+
 # # Interactive Brokers LLC
 # .ibkr.com
 # .interactivebrokers.com