Chart correction N19/21 — chart 93721
93721 7Ed. 3/30/19 LAST NM N18/21 N19/21 Delete Depth 8.7 meters Obstn 22°22′41″N 113°46′26″E Add Depth 7.2 meters Wk [K26] 22°23′56″N 113°46′04″E Buoy Y, pillar, “X” topmark, Mo(O) Y 12s AIS [Q130.6] 22°06′32″N 113°42′46″E Buoy Y, pillar, “X” topmark, Mo(O) Y 12s AIS [Q130.6] 22°06′42″N 113°45′27″E (15(1476)21 Taunton; 7(31, 32)21 Hong Kong)
Source: NGA U.S. Notice to Mariners · edition: 7Ed. 3/30/19
Reference information — always verify against official Notices to Mariners before navigation.