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. 4163(P)/26 CAMBODIA —  Works. Source: UKHO 1. Major port development works are taking place at Sihanoukville, with a new terminal being constructed in an area bounded by the following positions: 10° 39' .35N. , 103° 30' .29E. 10° 39' .59N. , 103° 30' .39E. 10° 39' .30N. , 103° 31' .20E. 10° 39' .04N. , 103° 31' .07E. 2. Mariners are advised to navigate with caution in the area and consult the local port authorities for the latest information. 3. Charts will be updated as further details become available. (WGS84 DATUM)