Positions quoted in this Preliminary Notice reproduced below are referred to WGS84 or a compatible datum and may be plotted directly on this ENC. ' Some or all of the information contained in this Notice to Mariners may have been included on the ENCs affected. 244(P)/23 VIETNAM —  Works. Wind farm. Wind turbines. Lights. Automatic Identification Systems. Buoyage. Source: Vietnamese Notice 221/22 1. Works are in progress to establish a wind farm North East of Cua Ham Luong. 2. Turbines are marked by lights, Mo(U)15s11m5M, and associated Automatic Identification System, AIS, in the positions: Designation Position T-01 9° 58' .77N. , 106° 40' .62E. T-07 9° 57' .80N. , 106° 41' .08E. 3. The construction works, which are marked by lit special buoys, FI(3+1)18s, in the following positions: Designation Position V-01 9° 57' .71N. , 106° 41' .15E. V-02 9° 58' .81N. , 106° 40' .74E. 4. Mariners are advised to navigate with caution in the area. 5. Chart GB1261 will be updated when full details are available. (WGS84 DATUM)