Chart correction 20/22 — chart 94160
94160 9Ed. 08/04/07 LAST NM 18/22 20/22 Add Purple composite line (anchoring prohibited area limit) [N20] joining 25°45.2′N 121°20.4′E 25°45.6′N 121°21.6′E 25°38.2′N 121°24.4′E 25°37.8′N 121°24.4′E 25°37.7′N 121°23.1′E 25°38.2′N 121°23.1′E (8(207)22 Tianjin)
Source: NGA U.S. Notice to Mariners · edition: 9Ed. 08/04/07
Reference information — always verify against official Notices to Mariners before navigation.