diff --git a/apps/backend/src/services/worker-platform/mappers.ts b/apps/backend/src/services/worker-platform/mappers.ts
index 78cd2c24..446f5653 100644
--- a/apps/backend/src/services/worker-platform/mappers.ts
+++ b/apps/backend/src/services/worker-platform/mappers.ts
@@ -43,6 +43,10 @@ import {
   normalizeStatuses,
   normalizeUploadedFiles,
 } from './worker-input-normalizers.js'
+import {
+  mapAcceptanceForResponse,
+  resolveCollectSubmittedFieldValues,
+} from './work-order-material-mappers.js'
 export {
   assertWithdrawChannelAllowedForAmount,
   isWorkerPasswordStrong,
@@ -1119,29 +1123,10 @@ export function matchesOptionalText(ruleValue: unknown, sourceValue: unknown) {
   )
 }
 
-export function mapAcceptanceForResponse(value: unknown) {
-  const acceptance = safeParseJson(value)
-  const files = normalizeUploadedFiles(acceptance.files).map((file) =>
-    refreshUploadedFileUrls(file),
-  )
-  const imageUrls = normalizeStringArray(acceptance.imageUrls).map((url) =>
-    refreshStoredFileUrl(url),
-  )
-  return {
-    ...acceptance,
-    files,
-    imageUrls,
-  }
-}
-
-export function resolveCollectSubmittedFieldValues(workOrder: WorkOrderRow) {
-  const material = safeParseJson(workOrder.material_json)
-  const collect =
-    material.collect && typeof material.collect === 'object' && !Array.isArray(material.collect)
-      ? safeParseJson(material.collect)
-      : {}
-  return normalizeSubmittedFields(collect.fields)
-}
+export {
+  mapAcceptanceForResponse,
+  resolveCollectSubmittedFieldValues,
+} from './work-order-material-mappers.js'
 
 export function isIgnorableWorkerAuthError(error: unknown) {
   return IGNORABLE_WORKER_AUTH_ERROR_CODES.has(
diff --git a/apps/backend/src/services/worker-platform/work-order-material-mappers.ts b/apps/backend/src/services/worker-platform/work-order-material-mappers.ts
new file mode 100644
index 00000000..dfa9fbe9
--- /dev/null
+++ b/apps/backend/src/services/worker-platform/work-order-material-mappers.ts
@@ -0,0 +1,31 @@
+import type { WorkOrderRow } from '../../repositories/worker-platform/index.js'
+import { safeParseJson } from '../admin/admin-query-utils.js'
+import {
+  refreshStoredFileUrl,
+  refreshUploadedFileUrls,
+} from '../file-storage/file-storage-service.js'
+import {
+  normalizeStringArray,
+  normalizeSubmittedFields,
+  normalizeUploadedFiles,
+} from './worker-input-normalizers.js'
+
+export function mapAcceptanceForResponse(value: unknown) {
+  const acceptance = safeParseJson(value)
+  const files = normalizeUploadedFiles(acceptance.files).map((file) =>
+    refreshUploadedFileUrls(file),
+  )
+  const imageUrls = normalizeStringArray(acceptance.imageUrls).map((url) =>
+    refreshStoredFileUrl(url),
+  )
+  return { ...acceptance, files, imageUrls }
+}
+
+export function resolveCollectSubmittedFieldValues(workOrder: WorkOrderRow) {
+  const material = safeParseJson(workOrder.material_json)
+  const collect =
+    material.collect && typeof material.collect === 'object' && !Array.isArray(material.collect)
+      ? safeParseJson(material.collect)
+      : {}
+  return normalizeSubmittedFields(collect.fields)
+}