Mezue ahịrịokwu na-esonụ: N'afọ 1857, Van Straubenzee ghọrọ onye isi ndị agha Britain na Hong Kong ma duru otu
mwakpo a wakporo Canton n'oge Agha Opium nke Abụọ. N'afọ 1862, e mere ya onye isi ndị agha na-achị ngalaba ndị agha Bombay na Ahmedabad ma mesịa were ndị agha Bombay.