diff --git a/corsika/modules/thinning/EMThinning.hpp b/corsika/modules/thinning/EMThinning.hpp
new file mode 100644
index 0000000000000000000000000000000000000000..43ffe1bb91f9cdad43a01a339c0173a3fe7f2de7
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+++ b/corsika/modules/thinning/EMThinning.hpp
@@ -0,0 +1,34 @@
+/*
+ * (c) Copyright 2022 CORSIKA Project, corsika-project@lists.kit.edu
+ *
+ * This software is distributed under the terms of the GNU General Public
+ * Licence version 3 (GPL Version 3). See file LICENSE for a full version of
+ * the license.
+ */
+
+#pragma once
+
+#include <corsika/framework/core/PhysicalUnits.hpp>
+#include <corsika/framework/process/SecondariesProcess.hpp>
+
+namespace corsika {
+
+//! This process implements thinning for EM splitting processes (1 -> 2)
+ 
+class EMThinning : public SecondariesProcess<EMThinning> {
+public:
+    
+
+
+    /**
+     * Apply thinning to secondaries.
+     *
+     * @tparam TStackView
+     */
+    template <typename TStackView>
+    void doSecondaries(TStackView&);
+
+};
+}
+
+#include <corsika/detail/process/thinning/EMThinning.inl>