>>44854
For now it's just talks.
Turkey with promoting pan-Turanism try to reach into Central Asia towards the *stans (plus the Turkic minorities of Afghanistan). Maybe if they "have" an airport in the neighbourhood that would raise their influence. Plus with a secure base of operation there Turkish companies gain an important infrastructure if they want to establish themselves in the country. Also if Turkey controls that airport, every other nation (and their companies) who wants to use it has to be friendly with the Turks.
Afghanistan has many natural resources waiting to be extracted, which will mean income to the country which means money they'll spend which means they are an untapped market. They'll need mining companies, maybe processing plants, factories. Resources can be exported as raw materials, but it is more profitable if goods are made out of them first. Taliban has money for anything? Not really, everything will need foreign investors, they can be another China at this point.
They have untrained laborers, so first only basic manufacturing can be started there (or such automation that only needs a chimp to push a button), but as income trickles in and education rises, the production can be more complex. Then the workers will earn more money and they can be turned into consumers. Etc.
If Turkey has a foothold and a major air bridge, it can prove a huge advantage on the long run.