diff --git a/api/apps/api/src/modules/clone/export/adapters/export-resource-pieces.adapter.spec.ts b/api/apps/api/src/modules/clone/export/adapters/export-resource-pieces.adapter.spec.ts
index 640f572620..23e14b2fa9 100644
--- a/api/apps/api/src/modules/clone/export/adapters/export-resource-pieces.adapter.spec.ts
+++ b/api/apps/api/src/modules/clone/export/adapters/export-resource-pieces.adapter.spec.ts
@@ -83,6 +83,7 @@ const getFixtures = async () => {
     projectWithCustomPlanningArea
       ? ClonePiece.PlanningAreaCustom
       : ClonePiece.PlanningAreaGAdm,
+    ClonePiece.ProjectCustomProtectedAreas,
   ];
 
   const expectedScenarioPieces = (projectExport: boolean) => {
diff --git a/api/apps/api/src/modules/clone/export/adapters/export-resource-pieces.adapter.ts b/api/apps/api/src/modules/clone/export/adapters/export-resource-pieces.adapter.ts
index ff0880c7c5..bd4b109892 100644
--- a/api/apps/api/src/modules/clone/export/adapters/export-resource-pieces.adapter.ts
+++ b/api/apps/api/src/modules/clone/export/adapters/export-resource-pieces.adapter.ts
@@ -58,6 +58,7 @@ export class ExportResourcePiecesAdapter implements ExportResourcePieces {
       customPlanningArea
         ? ExportComponent.newOne(id, ClonePiece.PlanningAreaCustom)
         : ExportComponent.newOne(id, ClonePiece.PlanningAreaGAdm),
+      ExportComponent.newOne(id, ClonePiece.ProjectCustomProtectedAreas),
       ...scenarioPieces.flat(),
     ];
 
diff --git a/api/apps/geoprocessing/src/export/pieces-exporters/pieces-exporters.module.ts b/api/apps/geoprocessing/src/export/pieces-exporters/pieces-exporters.module.ts
index 674fd41c95..38a051c678 100644
--- a/api/apps/geoprocessing/src/export/pieces-exporters/pieces-exporters.module.ts
+++ b/api/apps/geoprocessing/src/export/pieces-exporters/pieces-exporters.module.ts
@@ -9,6 +9,7 @@ import { PlanningAreaCustomPieceExporter } from './planning-area-custom.piece-ex
 import { PlanningAreaGadmPieceExporter } from './planning-area-gadm.piece-exporter';
 import { PlanningUnitsGridGeojsonPieceExporter } from './planning-units-grid-geojson.piece-exporter';
 import { PlanningUnitsGridPieceExporter } from './planning-units-grid.piece-exporter';
+import { ProjectCustomProtectedAreasPieceExporter } from './project-custom-protected-areas.piece-exporter';
 import { ProjectMetadataPieceExporter } from './project-metadata.piece-exporter';
 import { ScenarioMetadataPieceExporter } from './scenario-metadata.piece-exporter';
 
@@ -27,6 +28,7 @@ import { ScenarioMetadataPieceExporter } from './scenario-metadata.piece-exporte
     PlanningAreaCustomGeojsonPieceExporter,
     PlanningUnitsGridPieceExporter,
     PlanningUnitsGridGeojsonPieceExporter,
+    ProjectCustomProtectedAreasPieceExporter,
     ScenarioMetadataPieceExporter,
     Logger,
   ],
diff --git a/api/apps/geoprocessing/src/export/pieces-exporters/project-custom-protected-areas.piece-exporter.ts b/api/apps/geoprocessing/src/export/pieces-exporters/project-custom-protected-areas.piece-exporter.ts
new file mode 100644
index 0000000000..361f7b2d77
--- /dev/null
+++ b/api/apps/geoprocessing/src/export/pieces-exporters/project-custom-protected-areas.piece-exporter.ts
@@ -0,0 +1,80 @@
+import { geoprocessingConnections } from '@marxan-geoprocessing/ormconfig';
+import { ClonePiece, ExportJobInput, ExportJobOutput } from '@marxan/cloning';
+import { ResourceKind } from '@marxan/cloning/domain';
+import { FileRepository } from '@marxan/files-repository';
+import { Injectable, Logger } from '@nestjs/common';
+import { InjectEntityManager } from '@nestjs/typeorm';
+import { EntityManager } from 'typeorm';
+import {
+  ExportPieceProcessor,
+  PieceExportProvider,
+} from '../pieces/export-piece-processor';
+import { Readable } from 'stream';
+import { isLeft } from 'fp-ts/lib/Either';
+import { ClonePieceUrisResolver } from '@marxan/cloning/infrastructure/clone-piece-data';
+import { ProjectCustomProtectedAreasContent } from '@marxan/cloning/infrastructure/clone-piece-data/project-custom-protected-areas';
+import { ProtectedArea } from '@marxan/protected-areas';
+
+interface ProjectCustomProtectedAreasSelectResult {
+  fullName: string;
+  ewkb: Buffer;
+}
+
+@Injectable()
+@PieceExportProvider()
+export class ProjectCustomProtectedAreasPieceExporter
+  implements ExportPieceProcessor {
+  constructor(
+    private readonly fileRepository: FileRepository,
+    @InjectEntityManager(geoprocessingConnections.default)
+    private readonly geoprocessingEntityManager: EntityManager,
+    private readonly logger: Logger,
+  ) {
+    this.logger.setContext(ProjectCustomProtectedAreasPieceExporter.name);
+  }
+
+  isSupported(piece: ClonePiece, kind: ResourceKind): boolean {
+    return (
+      piece === ClonePiece.ProjectCustomProtectedAreas &&
+      kind === ResourceKind.Project
+    );
+  }
+
+  async run(input: ExportJobInput): Promise<ExportJobOutput> {
+    const customProtectedAreas: ProjectCustomProtectedAreasSelectResult[] = await this.geoprocessingEntityManager
+      .createQueryBuilder()
+      .select('ST_AsEWKB(wdpa.the_geom)', 'ewkb')
+      .addSelect('full_name', 'fullName')
+      .from(ProtectedArea, 'wdpa')
+      .where('project_id = :projectId', { projectId: input.resourceId })
+      .execute();
+
+    const content = customProtectedAreas.map<ProjectCustomProtectedAreasContent>(
+      (protectedArea) => {
+        return {
+          fullName: protectedArea.fullName,
+          ewkb: protectedArea.ewkb.toJSON().data,
+        };
+      },
+    );
+
+    const outputFile = await this.fileRepository.save(
+      Readable.from(JSON.stringify(content)),
+      `json`,
+    );
+
+    if (isLeft(outputFile)) {
+      const errorMessage = `${ProjectCustomProtectedAreasPieceExporter.name} - Project Custom Protected Areas - couldn't save file - ${outputFile.left.description}`;
+      this.logger.error(errorMessage);
+      throw new Error(errorMessage);
+    }
+
+    return {
+      ...input,
+      uris: ClonePieceUrisResolver.resolveFor(
+        ClonePiece.ProjectCustomProtectedAreas,
+        outputFile.right,
+      ),
+    };
+  }
+}
diff --git a/api/libs/cloning/src/infrastructure/clone-piece-data/project-custom-protected-areas.ts b/api/libs/cloning/src/infrastructure/clone-piece-data/project-custom-protected-areas.ts
index d7297d8c79..553fd0d8a7 100644
--- a/api/libs/cloning/src/infrastructure/clone-piece-data/project-custom-protected-areas.ts
+++ b/api/libs/cloning/src/infrastructure/clone-piece-data/project-custom-protected-areas.ts
@@ -1,2 +1,7 @@
 export const projectCustomProtectedAreasRelativePath =
   'project-custom-protected-areas.json';
+
+export interface ProjectCustomProtectedAreasContent {
+  fullName: string;
+  ewkb: number[];
+}