Chart correction N22/21 — chart 94217

94217 7Ed. 8/4/12 LAST NM N15/21 N22/21 Relocate Buoy “Q4” from 31°21′30.0″N 121°41′45.0″E to 31°21′42.6″N 121°41′49.9″E Buoy “Q5” from 31°22′39.3″N 121°39′20.1″E to 31°23′32.1″N 121°38′33.9″E (4(100)21 Tianjin)

Source: NGA U.S. Notice to Mariners · edition: 7Ed. 8/4/12

Reference information — always verify against official Notices to Mariners before navigation.