diff --git a/internal/activities/combine_premis.go b/internal/activities/combine_premis.go
new file mode 100644
index 00000000..a203f8d6
--- /dev/null
+++ b/internal/activities/combine_premis.go
@@ -0,0 +1,30 @@
+package activities
+
+import (
+	"context"
+)
+
+const CombinePremisName = "combine-premis"
+
+type CombinePremisActivity struct{}
+
+func NewCombinePremisActivity() *CombinePremisActivity {
+	return &CombinePremisActivity{}
+}
+
+type CombinePremisParams struct {
+	SipPath string
+}
+
+type CombinePremisResult struct {
+	Out string
+}
+
+func (md *CombinePresmiActivity) Execute(
+	ctx context.Context,
+	params *CombinePremisParams,
+) (*CombinePremisResult, error) {
+	res := &CombinePremisResult{}
+	res.Out = "OK"
+	return res, nil
+}