He was born in Gothenburg in 1748 to the Scottish merchant William Chalmers Sr. and his Swedish wife, Inga Orre.
[1] He became a director of the Swedish East India Company and in 1783 he was appointed as their resident representative in Canton.
At the age of 35, he was nominated to become the purchaser of the Swedish East India Company in Canton, China, which became his most enriching investment.
Six years post the finalization of the canal, the last Swedish East India Company-ship arrived into Sweden.
[5][failed verification] The imports from Spain and China allowed Sweden to widen its international relations, thus the porcelain from China and the silver from Spain was exported to other countries, as well as Sweden's own products: wood, iron and artillery.