diff --git a/io_scene_psk_psa/psk/builder.py b/io_scene_psk_psa/psk/builder.py
index dd8f33b..3b49bac 100644
--- a/io_scene_psk_psa/psk/builder.py
+++ b/io_scene_psk_psa/psk/builder.py
@@ -1,9 +1,9 @@
 import bmesh
 import bpy
 import numpy as np
-from bpy.types import Armature, Context, Object, Mesh, Material
+from bpy.types import Armature, Context, Object, Mesh
 from mathutils import Matrix
-from typing import Iterable, Sequence, cast as typing_cast
+from typing import Iterable, cast as typing_cast
 from psk_psa_py.shared.data import Vector3
 from psk_psa_py.psk.data import Psk
 from .properties import triangle_type_and_bit_flags_to_poly_flags
diff --git a/io_scene_psk_psa/psk/export/properties.py b/io_scene_psk_psa/psk/export/properties.py
index f841f44..1163398 100644
--- a/io_scene_psk_psa/psk/export/properties.py
+++ b/io_scene_psk_psa/psk/export/properties.py
@@ -3,10 +3,9 @@ from bpy.props import (
     CollectionProperty,
     EnumProperty,
     IntProperty,
-    PointerProperty,
     StringProperty,
 )
-from bpy.types import Material, PropertyGroup
+from bpy.types import PropertyGroup
 
 from ...shared.types import ExportSpaceMixin, TransformMixin, PsxBoneExportMixin, TransformSourceMixin
 
diff --git a/io_scene_psk_psa/psk/export/properties.pyi b/io_scene_psk_psa/psk/export/properties.pyi
index 2fcf60f..3f20b97 100644
--- a/io_scene_psk_psa/psk/export/properties.pyi
+++ b/io_scene_psk_psa/psk/export/properties.pyi
@@ -1,5 +1,3 @@
-from bpy.types import Material
-
 from ...shared.types import BpyCollectionProperty, ExportSpaceMixin, TransformMixin, PsxBoneExportMixin, TransformSourceMixin