Chart correction N34/21 — chart 93721

93721 7Ed. 3/30/19 LAST NM N25/21 N34/21 Delete Beacon “No 1” 22°43′04″N 113°45′04″E Buoy “No 21” 22°41′01″N 113°44′15″E Buoy 22°14′32″N 113°36′29″E Depth 2.2 meters 22°26′16″N 113°41′16″E Buoy “SZSD1” 22°35′24″N 113°47′03″E (See N3/21) Relocate Buoy “SZSD6” from 22°35′41″N 113°46′44″E to 22°35′34″N 113°46′44″E Buoy “SZSD3” from 22°34′53″N 113°47′13″E to 22°34′37″N 113°47′23″E Buoy “SZSD4” from 22°34′37″N 113°46′47″E to 22°34′29″N 113°47′11″E Buoy “SZSD5A” from 22°35′34″N 113°46′12″E to 22°35′18″N 113°46′04″E Substitute Depth 0.7 meter for 1.5 meters 22°26′53″N 113°41′02″E Add Depth 2.5 meters 22°19′35″N 113°39′04″E Buoy “No 21” GRG, pillar, Fl(2+1) G 6s 22°41′59″N 113°44′16″E Buoy G, conical, Fl G 4s Racon (O) 22°14′30″N 113°36′30″E Depth 1.9 meters 22°26′14″N 113°41′13″E and extend depth contour (2-meter) and blue tint SE to enclose Buoy “SZSD5” Y, pillar, “X” topmark, Mo(O) Y 12s [Q130.6] 22°35′01″N 113°46′15″E (6(201), 17(603), 20(691)21 Tianjin; CHN CH 15471)

Source: NGA U.S. Notice to Mariners · edition: 7Ed. 3/30/19

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