diff --git a/apps/wr/components/ui/form/coMat/conCostForm/conCostForm.tsx b/apps/wr/components/ui/form/coMat/conCostForm/conCostForm.tsx
index 1d175f1c6..423581432 100644
--- a/apps/wr/components/ui/form/coMat/conCostForm/conCostForm.tsx
+++ b/apps/wr/components/ui/form/coMat/conCostForm/conCostForm.tsx
@@ -50,6 +50,10 @@ export default function ConCostForm({
   const ref = useRef<boolean>(false);
 
   const [checkFinish, setCheckFinish] = useState<boolean>(false);
+  const [lastSub, setLastSub] = useState<{
+    ruseUtztnFcltNm: string;
+    ruseUtztnFcltCd: string;
+  } | null>(null);
 
   useEffect(() => {
     if (!ref.current) {
@@ -80,7 +84,7 @@ export default function ConCostForm({
   const dmndQtyWatch = form.watch("dmndQty");
   const totalConstCost = form.watch("totalConstCost");
   const cstrnCst = form.watch("demandCst.cstrnCst");
-
+  const splyList = form.watch("splyCndtList");
   const calculateConstCost = useCallback(() => {
     const usgPrcsProcs = usgPrcsProcsWatch;
     if (!dmndQtyWatch) {
@@ -157,8 +161,11 @@ export default function ConCostForm({
       return;
     }
 
-  const splycd =  form.getValues("splyCndtList")
-  const pk =   splycd&&splycd[0]?.ruseUtztnFcltCd?splycd[0]?.ruseUtztnFcltCd:'11000SW001R1'
+    const splycd = form.getValues("splyCndtList");
+    const pk =
+      splycd && splycd[0]?.ruseUtztnFcltCd
+        ? splycd[0]?.ruseUtztnFcltCd
+        : "11000SW001R1";
 
     if (type === "mat") {
       if (value.demandCst) {
@@ -183,11 +190,7 @@ export default function ConCostForm({
                   onClick={() => {
                     toast.dismiss(t.id);
 
-                    coMatRvwUpdate(
-                      pk,
-                      form.getValues("dmdInfoId"),
-                      data
-                    );
+                    coMatRvwUpdate(pk, form.getValues("dmdInfoId"), data);
                   }}
                 >
                   확인
@@ -199,7 +202,6 @@ export default function ConCostForm({
             </span>
           ));
         } else {
-
           coMatRvwUpdate(pk, form.getValues("dmdInfoId"), data);
         }
       }
@@ -216,6 +218,10 @@ export default function ConCostForm({
     console.log(" form  ", form.formState.errors);
   }, [form.formState]);
 
+  useEffect(() => {
+    console.log("splyCndtList ", splyList);
+  }, [splyList]);
+
   useEffect(() => {
     form.register("dmdInfoSn");
     form.register("dmdInfoId");
@@ -369,8 +375,8 @@ export default function ConCostForm({
                       console.log("dmndQty ", e);
                       //field.onChange(Number(e.target.value) * 365 );
                     }}
-                   // value={Number(field.value) * 365 || 0}
-                   value={Number(field.value) || 0}
+                    // value={Number(field.value) * 365 || 0}
+                    value={Number(field.value) || 0}
                     readOnly
                   />
                 </FormUi>
@@ -501,30 +507,32 @@ export default function ConCostForm({
               )}
             />
           </div>
-          {/* <div className="col-span-3 mt-4">
+          <div className="col-span-3 mt-4">
             <div className="flex items-center justify-between">
               <Label>공급처 선정</Label>
-              <Button size={"sm"} onClick={(e) => {}} className="bg-none">
+              <Button
+                size={"sm"}
+                onClick={(e) => {
+                  console.log(e);
+                  setLastSub(null)  // 빌드오류때문에 넣은거 삭제필요
+ 
+                  //splyList => 해당객체가 대민에서 선택한 후보처 리스트
+                  //setLastSub => 해당 스테이트가 선택한 마지막 후보처를 넣어야하는 스테이트
+                }}
+                className="bg-none"
+              >
                 후보지 조회
               </Button>
             </div>
-            <FormField
-              control={form.control}
-              name=""
-              render={({ field }) => (
-                <FormUi label="">
-                  <Input
-                    placeholder=""
-                    type="text"
-                    onChange={(e) => {
-                      field.onChange(e.target.value);
-                    }}
-                    value={field.value ?? ""}
-                  />
-                </FormUi>
-              )}
-            />
-          </div> */}
+            <FormUi label="">
+              <Input
+                placeholder=""
+                type="text"
+                value={lastSub?.ruseUtztnFcltNm || ""}
+                readOnly
+              />
+            </FormUi>
+          </div>
           <div className="col-span-3 mt-4">
             <FormField
               control={form.control}
@@ -536,9 +544,8 @@ export default function ConCostForm({
                     type="number"
                     step="0.01"
                     onChange={(e) => {
+                      if (readonly) return;
 
-                      if(readonly) return;
-                      
                       field.onChange(Number(e.target.value));
                     }}
                     value={field.value ?? 0}