diff --git a/nx/include/switch/services/set.h b/nx/include/switch/services/set.h
index 8c352c67..04cff41a 100644
--- a/nx/include/switch/services/set.h
+++ b/nx/include/switch/services/set.h
@@ -69,6 +69,12 @@ typedef struct {
     char display_title[0x80];
 } SetSysFirmwareVersion;
 
+/// PlatformRegion. Other values not listed here should be handled as "Unknown".
+typedef enum {
+    SetSysPlatformRegion_Global = 1,
+    SetSysPlatformRegion_China = 2,
+} SetSysPlatformRegion;
+
 /// Initialize set.
 Result setInitialize(void);
 
@@ -394,3 +400,17 @@ Result setsysGetRequiresRunRepairTimeReviser(bool *out);
  * @param[in] flag Input flag.
  */
 Result setsysSetRequiresRunRepairTimeReviser(bool flag);
+
+/**
+ * @brief Gets the \ref SetSysPlatformRegion.
+ * @note Only available on [9.0.0+].
+ * @param[out] region \ref SetSysPlatformRegion
+ */
+Result setsysGetPlatformRegion(SetSysPlatformRegion *region);
+
+/**
+ * @brief Sets the \ref SetSysPlatformRegion.
+ * @note Only available on [9.0.0+].
+ * @param[in] region \ref SetSysPlatformRegion
+ */
+Result setsysSetPlatformRegion(SetSysPlatformRegion region);
diff --git a/nx/source/services/set.c b/nx/source/services/set.c
index efa6f8f7..a6d8c58d 100644
--- a/nx/source/services/set.c
+++ b/nx/source/services/set.c
@@ -490,3 +490,20 @@ Result setsysSetRequiresRunRepairTimeReviser(bool flag) {
 
     return _setCmdInBoolNoOut(&g_setsysSrv, flag, 142);
 }
+
+Result setsysGetPlatformRegion(SetSysPlatformRegion *region) {
+    if (hosversionBefore(9,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    u32 tmp=0;
+    Result rc = _setCmdNoInOutU32(&g_setsysSrv, &tmp, 183);
+    if (R_SUCCEEDED(rc) && region) *region = tmp;
+    return rc;
+}
+
+Result setsysSetPlatformRegion(SetSysPlatformRegion region) {
+    if (hosversionBefore(9,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    return _setCmdInU32NoOut(&g_setsysSrv, region, 184);
+}