[2] Due to letters patent on 11 November 1870, the care of the Sweden–Norway's interests there was handed over to the Dutch trade representation, which employed consuls and vice-consuls partly in Yokohama and Tokyo (Dutch legation), partly in Nagasaki, as well as in Osaka and Hyōgo.

By a decision on 9 October 1900, a career Swedish-Norwegian consulate general was established in Kobe with the whole of Japan as a district.

[3] By a decision on 28 September 1906, the consulate general in Japan was assigned to King in Council's minister there, Gustaf Oscar Wallenberg.

Wallenberg served as consul general from the same date and as envoy extraordinary and minister plenipotentiary from the same year.

[3][4] In the fall of 1957, an agreement was reached between the Swedish and Japanese governments on the mutual elevation of the respective countries' legations to embassies.