diff --git a/src/controllers/04-product-controller.ts b/src/controllers/04-product-controller.ts
index 18fd275..fb80973 100644
--- a/src/controllers/04-product-controller.ts
+++ b/src/controllers/04-product-controller.ts
@@ -121,6 +121,7 @@ export class ProductController extends Controller {
   async getProduct(
     @Request() req: RequestWithUser,
     @Query() status?: Status,
+    @Query() shared?: boolean,
     @Query() productGroupId?: string,
     @Query() query: string = "",
     @Query() page: number = 1,
@@ -134,22 +135,41 @@ export class ProductController extends Controller {
       ]),
       AND: {
         ...filterStatus(status),
-        productGroupId,
-        OR: isSystem(req.user)
-          ? undefined
-          : [
-              {
-                productGroup: {
-                  registeredBranch: { OR: permissionCond(req.user) },
+        OR: [
+          ...(productGroupId
+            ? [
+                shared
+                  ? {
+                      OR: [
+                        { productGroupId },
+                        {
+                          productGroup: {
+                            shared: true,
+                            registeredBranch: { OR: permissionCondCompany(req.user) },
+                          },
+                        },
+                      ],
+                    }
+                  : { productGroupId },
+              ]
+            : []),
+          ...(isSystem(req.user)
+            ? []
+            : [
+                {
+                  shared: true,
+                  productGroup: {
+                    registeredBranch: { OR: permissionCondCompany(req.user) },
+                  },
                 },
-              },
-              {
-                shared: true,
-                productGroup: {
-                  registeredBranch: { OR: permissionCondCompany(req.user) },
+                {
+                  productGroup: {
+                    shared: true,
+                    registeredBranch: { OR: permissionCondCompany(req.user) },
+                  },
                 },
-              },
-            ],
+              ]),
+        ],
       },
     } satisfies Prisma.ProductWhereInput;