Analysis of information sources in references of the Wikipedia article "Trading post" in English language version.
Ohthere [...] also told of a journey south along the coast of Norway to the trading centre of Sciringesheal (this is most likely Kaupang in Westfold). [...] From Sciringesheal he took five days to sail to Hedeby. Kaupang was an international trading centre and Hedeby was Scandinavia's largest trading post. The purpose of the journey was no doubt to sell products from northern Scandinavia, which were considered luxury goods and would fetch a good price, and buy luxury goods which were difficult to obtain in his home area.
Nomadic Tuareg people established Timbuktu as a seasonal camp in about 1100, likely due to the location about 8 miles (13 kilometers) from the Niger River. Timbuktu developed into an important trading post along the major caravan route through the Sahara Desert and as a center for Islamic culture.
[...] as early as the nineteenth century [the Victoria Harbour] was already an important anchorage and passage for regional trading ships [...]. [...] Thereafter, Hong Kong rapidly developed into an important trading post.
An overseas polis often started as a trading post (emporion), which then developed into a settlement as colonists followed. Trade was certainly the motivating factor in some of the very early Greek colonies, such as Al Mina in Syria and Pithekoussai in Italy. A trading post that turned into a colony was called an apoika, meaning a 'settlement elsewhere.'