Passenger voyages between the Far East, Straits and Bay of Bengal was abandoned at the end of 1955, and in the same year, Auckland became a port of call on the Australia route.

ICSNC, Hong Kong moved into the bulk shipping business and also became involved in the Gearbulk container pool, as well as branching out into other industries.

Hip Sang, an ICSNC cargo steamship of 1,659 tons, was lost on 16 July 1904 when she was torpedoed by the Russian destroyer Rastoropny west of the Kwantung Peninsula at 39°06′N 121°09′E / 39.10°N 121.15°E / 39.10; 121.15 after refusing to stop en route from Newchang for Chefoo carrying provisions.

[7] On 21 January 1942, the ICSNC owned cargo and passenger steamship Chak Sang was intercepted by a Japanese submarine and sunk west of the Gulf of Martaban, Burma.

ICSNC lost a subsequent court case and appeal and ended up paying 25 lacs (2.5 million rupees) in lieu of confiscation.