 The French Navy expanded the base facilities making it the Navy headquarters and home to the Naval Artillery and barracks.In 1864 the Navy expanded the Chu Su Naval workshop into the Naval Arsenal and Shipyard which by 1888 had modern facilities including a 168m drydock.In 1902 the base became the headquarters of the Naval Forces of the Oriental Seas under the command of a Vice Admiral who controlled 38 ships and over 3800 officers and sailors.