diff --git a/backend/src/main/java/gc/mda/kcg/domain/analysis/VesselAnalysisResult.java b/backend/src/main/java/gc/mda/kcg/domain/analysis/VesselAnalysisResult.java
index 6306d8f..0ba31d5 100644
--- a/backend/src/main/java/gc/mda/kcg/domain/analysis/VesselAnalysisResult.java
+++ b/backend/src/main/java/gc/mda/kcg/domain/analysis/VesselAnalysisResult.java
@@ -58,6 +58,7 @@ public class VesselAnalysisResult {
 
     private Double spoofingScore;
 
+    @Column(name = "bd09_offset_m")
     private Double bd09OffsetM;
 
     private Integer speedJumpCount;
diff --git a/frontend/src/hooks/useKoreaFilters.ts b/frontend/src/hooks/useKoreaFilters.ts
index bdfcf2d..2070a62 100644
--- a/frontend/src/hooks/useKoreaFilters.ts
+++ b/frontend/src/hooks/useKoreaFilters.ts
@@ -308,9 +308,17 @@ export function useKoreaFilters(
     return visibleShips.filter(s => {
       const mtCat = getMarineTrafficCategory(s.typecode, s.category);
       if (filters.illegalFishing) {
+        const analysis = analysisMap?.get(s.mmsi);
+        if (analysis) {
+          // Python 분석: 영해/접속수역 침범 또는 위험도 HIGH+ 어선
+          const zone = analysis.algorithms.location.zone;
+          const riskLevel = analysis.algorithms.riskScore.level;
+          const isThreat = zone === 'TERRITORIAL_SEA' || zone === 'CONTIGUOUS_ZONE'
+            || riskLevel === 'CRITICAL' || riskLevel === 'HIGH';
+          if (isThreat) return true;
+        }
+        // 비한국 어선 (기본 필터)
         if (mtCat === 'fishing' && s.flag !== 'KR') return true;
-        const riskLevel = analysisMap?.get(s.mmsi)?.algorithms.riskScore.level;
-        if (mtCat === 'fishing' && (riskLevel === 'CRITICAL' || riskLevel === 'HIGH')) return true;
       }
       if (filters.illegalTransship && transshipSuspects.has(s.mmsi)) return true;
       if (filters.darkVessel && darkVesselSet.has(s.mmsi)) return true;
diff --git a/frontend/src/services/chnPrmShip.ts b/frontend/src/services/chnPrmShip.ts
new file mode 100644
index 0000000..1a4c890
--- /dev/null
+++ b/frontend/src/services/chnPrmShip.ts
@@ -0,0 +1,54 @@
+import type { ChnPrmShipInfo } from '../types';
+
+const SIGNAL_BATCH_BASE = '/signal-batch';
+const CACHE_TTL_MS = 5 * 60_000; // 5분
+
+let cachedList: ChnPrmShipInfo[] = [];
+let cacheTime = 0;
+let fetchPromise: Promise<ChnPrmShipInfo[]> | null = null;
+
+async function fetchList(): Promise<ChnPrmShipInfo[]> {
+  const now = Date.now();
+  if (cachedList.length > 0 && now - cacheTime < CACHE_TTL_MS) {
+    return cachedList;
+  }
+
+  if (fetchPromise) return fetchPromise;
+
+  fetchPromise = (async () => {
+    try {
+      const res = await fetch(
+        `${SIGNAL_BATCH_BASE}/api/v2/vessels/chnprmship/recent-positions?minutes=60`,
+        { headers: { accept: 'application/json' } },
+      );
+      if (!res.ok) return cachedList;
+      const json: unknown = await res.json();
+      cachedList = Array.isArray(json) ? (json as ChnPrmShipInfo[]) : [];
+      cacheTime = Date.now();
+      return cachedList;
+    } catch {
+      return cachedList;
+    } finally {
+      fetchPromise = null;
+    }
+  })();
+
+  return fetchPromise;
+}
+
+/** mmsi로 허가어선 정보 조회 — 목록을 캐시하고 lookup */
+export async function lookupPermittedShip(mmsi: string): Promise<ChnPrmShipInfo | null> {
+  const list = await fetchList();
+  return list.find((s) => s.mmsi === mmsi) ?? null;
+}
+
+/** 허가어선 mmsi Set (빠른 조회용) */
+export async function getPermittedMmsiSet(): Promise<Set<string>> {
+  const list = await fetchList();
+  return new Set(list.map((s) => s.mmsi));
+}
+
+/** 캐시 강제 갱신 */
+export function invalidateCache(): void {
+  cacheTime = 0;
+}