diff --git a/WebContent/WEB-INF/view/salesMng/purchaseListFormPopUp.jsp b/WebContent/WEB-INF/view/salesMng/purchaseListFormPopUp.jsp
index 7cb14b8..9636055 100644
--- a/WebContent/WEB-INF/view/salesMng/purchaseListFormPopUp.jsp
+++ b/WebContent/WEB-INF/view/salesMng/purchaseListFormPopUp.jsp
@@ -271,11 +271,22 @@ function createSelect2Editor(options) {
 			$(select).select2('open');
 		});
 		
-		$(select).on('select2:select select2:clear', function(e) {
+		var isCleared = false;
+		
+		$(select).on('select2:select', function(e) {
 			success($(select).val());
 		});
 		
+		$(select).on('select2:clear', function(e) {
+			isCleared = true;
+			setTimeout(function() {
+				$(select).select2('close');
+				success('');
+			}, 0);
+		});
+		
 		$(select).on('select2:close', function() {
+			if(isCleared) return;
 			setTimeout(function() {
 				success($(select).val());
 			}, 100);
@@ -672,19 +683,12 @@ function fn_initGrid() {
 			title: '<span style="background-color: #FFFF00; padding: 2px 5px;">가공업체</span>',
 			field: 'PROCESSING_VENDOR',
 			editor: function(cell, onRendered, success, cancel, editorParams) {
-				// Select2 에디터
 				return createSelect2Editor(processingVendorList)(cell, onRendered, success, cancel, editorParams);
 			},
 			formatter: function(cell) {
 				var value = cell.getValue();
+				if(!value) return '';
 				
-				// 저장된 값이 없으면 기본값 '0000008377'(RPS) 설정
-				if(value === undefined || value === null || value === '') {
-					value = '0000008377';
-					cell.getRow().update({PROCESSING_VENDOR: value}, false);
-				}
-				
-				// OBJID로 업체명 조회하여 표시
 				for(var i = 0; i < processingVendorList.length; i++) {
 					if(processingVendorList[i].id == value) {
 						return processingVendorList[i].text;
diff --git a/src/com/pms/mapper/salesMng.xml b/src/com/pms/mapper/salesMng.xml
index 54bfa3e..a43c06d 100644
--- a/src/com/pms/mapper/salesMng.xml
+++ b/src/com/pms/mapper/salesMng.xml
@@ -3172,7 +3172,7 @@ UPDATE SET
 		0 AS ORDER_QTY,
 		0 AS ITEM_QTY2,
 		0 AS PRODUCTION_QTY,
-		COALESCE(SRP.PROCESSING_VENDOR, '') AS PROCESSING_VENDOR,
+		CASE WHEN SRP.PROCESSING_VENDOR IS NULL THEN '0000008377' ELSE SRP.PROCESSING_VENDOR END AS PROCESSING_VENDOR,
 		NULL AS PROCESSING_DEADLINE,
 		NULL AS GRINDING_DEADLINE,
 		-- 구매 관련 컬럼 (SALES_REQUEST_PART에서 조회)
@@ -3463,7 +3463,7 @@ SELECT
 	G.RAW_MATERIAL_SPEC,
 	G.RAW_MATERIAL,
 	G.RAW_MATERIAL_SIZE AS SIZE,
-	G.PROCESSING_VENDOR,
+	CASE WHEN G.PROCESSING_VENDOR IS NULL THEN '0000008377' ELSE G.PROCESSING_VENDOR END AS PROCESSING_VENDOR,
 	G.PROCESSING_DEADLINE,
 	G.GRINDING_DEADLINE,
 	G.REQUIRED_QTY,