diff --git a/bin/build-all.sh b/bin/build-all.sh
index 2f52a47fd..63dfc01c1 100755
--- a/bin/build-all.sh
+++ b/bin/build-all.sh
@@ -4,7 +4,7 @@ set -e
 
 source bin/version.sh
 
-COUNTRIES="US EU433 EU865 CN JP ANZ"
+COUNTRIES="US EU433 EU865 CN JP ANZ KR"
 #COUNTRIES=US
 #COUNTRIES=CN
 
diff --git a/src/mesh/MeshRadio.h b/src/mesh/MeshRadio.h
index 14b649dad..070c7c9a7 100644
--- a/src/mesh/MeshRadio.h
+++ b/src/mesh/MeshRadio.h
@@ -41,6 +41,12 @@
 #define CH_SPACING_ANZ 0.5f
 #define NUM_CHANNELS_ANZ 20
 
+// KR channel settings (KR920-923)
+// Start from TTN download channel freq. (921.9f is for download, others are for uplink)
+#define CH0_KR 921.9f // MHz
+#define CH_SPACING_KR 0.2f
+#define NUM_CHANNELS_KR 8
+
 // FIXME add defs for other regions and use them here
 #ifdef HW_VERSION_US
 #define CH0 CH0_US
@@ -73,9 +79,14 @@
 #define CH0 CH0_ANZ
 #define CH_SPACING CH_SPACING_ANZ
 #define NUM_CHANNELS NUM_CHANNELS_ANZ
+#elif defined(HW_VERSION_KR)
+// Republic of Korea
+#define CH0 CH0_KR
+#define CH_SPACING CH_SPACING_KR
+#define NUM_CHANNELS NUM_CHANNELS_KR
 #else
 // HW version not set - assume US
 #define CH0 CH0_US
 #define CH_SPACING CH_SPACING_US
 #define NUM_CHANNELS NUM_CHANNELS_US
-#endif
+#endif
\ No newline at end of file