Notice is hereby given to all mariners and other parties concerned that:

1.   Reference: Letter from Engineer Douglas Mercurio Trinav Surveys, Inc dated 20 February 2018.

2.  Trinav Surveys, Inc., a Philippine based company has been contracted by Cavitex Holdings, Inc to conduct Marine Geophysical Survey for Sangley International Airport Project in Cavite bounded by the following coordinates:

3. In this connection, all ships/watercrafts transiting the vicinity of the abovementioned areas are advised to take note of the information and take necessary precautionary measures at all times.

4. The cooperation of all concerned in effecting widest dissemination of this information is requested.