diff --git a/ydb/core/tx/datashard/export_s3_uploader.cpp b/ydb/core/tx/datashard/export_s3_uploader.cpp
index 402c5a09335c..9acd52bc7b81 100644
--- a/ydb/core/tx/datashard/export_s3_uploader.cpp
+++ b/ydb/core/tx/datashard/export_s3_uploader.cpp
@@ -182,8 +182,7 @@ class TS3Uploader: public TActorBootstrapped<TS3Uploader> {
         google::protobuf::TextFormat::PrintToString(Scheme.GetRef(), &Buffer);
 
         auto request = Aws::S3::Model::PutObjectRequest()
-            .WithKey(Settings.GetSchemeKey())
-            .WithStorageClass(Settings.GetStorageClass());
+            .WithKey(Settings.GetSchemeKey());
         this->Send(Client, new TEvExternalStorage::TEvPutObjectRequest(request, std::move(Buffer)));
 
         this->Become(&TThis::StateUploadScheme);
@@ -199,8 +198,7 @@ class TS3Uploader: public TActorBootstrapped<TS3Uploader> {
         google::protobuf::TextFormat::PrintToString(Permissions.GetRef(), &Buffer);
 
         auto request = Aws::S3::Model::PutObjectRequest()
-            .WithKey(Settings.GetPermissionsKey())
-            .WithStorageClass(Settings.GetStorageClass());
+            .WithKey(Settings.GetPermissionsKey());
         this->Send(Client, new TEvExternalStorage::TEvPutObjectRequest(request, std::move(Buffer)));
 
         this->Become(&TThis::StateUploadPermissions);
@@ -212,8 +210,7 @@ class TS3Uploader: public TActorBootstrapped<TS3Uploader> {
         Buffer = std::move(Metadata);
 
         auto request = Aws::S3::Model::PutObjectRequest()
-            .WithKey(Settings.GetMetadataKey())
-            .WithStorageClass(Settings.GetStorageClass());
+            .WithKey(Settings.GetMetadataKey());
         this->Send(Client, new TEvExternalStorage::TEvPutObjectRequest(request, std::move(Buffer)));
 
         this->Become(&TThis::StateUploadMetadata);
@@ -311,8 +308,7 @@ class TS3Uploader: public TActorBootstrapped<TS3Uploader> {
     void UploadData() {
         if (!MultiPart) {
             auto request = Aws::S3::Model::PutObjectRequest()
-                .WithKey(Settings.GetDataKey(DataFormat, CompressionCodec))
-                .WithStorageClass(Settings.GetStorageClass());
+                .WithKey(Settings.GetDataKey(DataFormat, CompressionCodec));
             this->Send(Client, new TEvExternalStorage::TEvPutObjectRequest(request, std::move(Buffer)));
         } else {
             if (!UploadId) {
@@ -351,8 +347,7 @@ class TS3Uploader: public TActorBootstrapped<TS3Uploader> {
 
         if (!upload) {
             auto request = Aws::S3::Model::CreateMultipartUploadRequest()
-                .WithKey(Settings.GetDataKey(DataFormat, CompressionCodec))
-                .WithStorageClass(Settings.GetStorageClass());
+                .WithKey(Settings.GetDataKey(DataFormat, CompressionCodec));
             this->Send(Client, new TEvExternalStorage::TEvCreateMultipartUploadRequest(request));
         } else {
             UploadId = upload->Id;
diff --git a/ydb/core/wrappers/s3_storage.cpp b/ydb/core/wrappers/s3_storage.cpp
index 194761cbb0f8..22e4e0566cf8 100644
--- a/ydb/core/wrappers/s3_storage.cpp
+++ b/ydb/core/wrappers/s3_storage.cpp
@@ -251,31 +251,41 @@ class TInputStreamContext: public TContextBase<TEvRequest, TEvResponse> {
 
 }; // TInputStreamContext
 
-template <typename TEvRequest, typename TEvResponse>
-class TPutInputStreamContext: public TInputStreamContext<TEvRequest, TEvResponse> {
+template <typename TEvRequest, typename TEvResponse, template <typename, typename> typename TContext = TContextBase>
+class TContextWithStorageClass : public TContext<TEvRequest, TEvResponse> {
 private:
-    using TBase = TInputStreamContext<TEvRequest, TEvResponse>;
+    using TBase = TContext<TEvRequest, TEvResponse>;
+
 public:
     using TBase::TBase;
 
     const typename TBase::TRequest& PrepareRequest(typename TEvRequest::TPtr& ev) override {
         auto& request = ev->Get()->MutableRequest();
-        auto storageClass = TBase::StorageClass;
-
-        // workaround for minio.
-        // aws s3 treats NOT_SET as STANDARD
-        // but internally sdk just doesn't set corresponding header, while adds it to SignedHeaders
-        // and minio implementation treats it as error, returning to client error
-        // which literally can't be debugged e.g. "There were headers present in the request which were not signed"
-        if (storageClass == Aws::S3::Model::StorageClass::NOT_SET) {
-            storageClass = Aws::S3::Model::StorageClass::STANDARD;
+        if (TBase::StorageClass != Aws::S3::Model::StorageClass::NOT_SET) {
+            request.WithStorageClass(TBase::StorageClass);
         }
-
-        request.WithStorageClass(storageClass);
         return TBase::PrepareRequest(ev);
     }
+}; // TContextWithStorageClass
+
+template <typename TEvRequest, typename TEvResponse>
+class TPutInputStreamContext: public TContextWithStorageClass<TEvRequest, TEvResponse, TInputStreamContext> {
+private:
+    using TBase = TContextWithStorageClass<TEvRequest, TEvResponse, TInputStreamContext>;
+
+public:
+    using TBase::TBase;
 }; // TPutInputStreamContext
 
+template <typename TEvRequest, typename TEvResponse>
+class TCreateMultipartUploadContext: public TContextWithStorageClass<TEvRequest, TEvResponse> {
+private:
+    using TBase = TContextWithStorageClass<TEvRequest, TEvResponse>;
+
+public:
+    using TBase::TBase;
+}; // TCreateMultipartUploadContext
+
 } // anonymous
 
 TS3ExternalStorage::~TS3ExternalStorage() {
@@ -342,7 +352,7 @@ void TS3ExternalStorage::Execute(TEvDeleteObjectsRequest::TPtr& ev) const {
 }
 
 void TS3ExternalStorage::Execute(TEvCreateMultipartUploadRequest::TPtr& ev) const {
-    Call<TEvCreateMultipartUploadRequest, TEvCreateMultipartUploadResponse, TContextBase>(
+    Call<TEvCreateMultipartUploadRequest, TEvCreateMultipartUploadResponse, TCreateMultipartUploadContext>(
 #if AWS_SDK_VERSION_MAJOR == 1 && AWS_SDK_VERSION_MINOR >= 11
         ev, &S3Client::CreateMultipartUploadAsync<>);
 #else