Captain Thomas Larkins sailed Warren Hasting for China, leaving The Downs on 6 April 1803 and arriving at Whampoa on 28 August.

[3] Warren Hastings was traveling in convoy with the fleet of East Indiamen returning from China, and under the command of Commodore Nathaniel Dance.

However, on 21 June 1806, as Warren Hastings was on her way back from Canton, the French frigate Piémontaise, under the command of Captain Épron, captured her at 26°13′S 56°45′E / 26.217°S 56.750°E / -26.217; 56.750,[3] in a noteworthy single-ship action.

[11] One report has the Danish East India Company purchasing Warren Hastings as a replacement for Holstein, which had arrived at Port Louis on 21 July 1806 and been condemned.

[12] (A report in the Madras Courier dated 10 February 1807 stated that the Danish company's ship Holstein was sailing from Copenhagen to Serampore when she was dismasted off Ceylon.

[1][11] Captain C. P. MacFarlane sailed Warren Hastings back to England from Calcutta as an "extra ship", i.e., under charter.

[15] Captain Gunter Lyde Browne sailed Warren Hastings to the Cape and China, leaving Portsmouth on 8 April 1811.

[4] She reached the Cape of Good Hope on 13 July, Penang on 30 August, and Malacca on 20 September, before arriving at Whampoa on 28 October.

[18] When Warren Hastings arrived back at London she discharged her crew, including her Chinese sailors hired in Canton.

[19] Captain Rawes and Warren Hastings left Portsmouth on 4 April 1819, reached Penang on 20 July, Malacca on 15 September, and Singapore on ten days later.

[18] Warren Hastings, still under the command of Captain Richard Rawes, left the Downs on 21 April 1823 and arrived at Whampoa on 1 October.

Homeward bound, she crossed the Second Bar on 17 January 1824, reached St Helena on 27 March, and arrived at The Downs on 10 June.

On the way, severe weather caused considerable damage, forcing Rawes to divert to Penang, which she reached on 27 August, for repairs.