Securing the necessary traffic rights for a charter flight is crucial.  While Ezhou Airport may have existing traffic rights to Bangkok, departing from Kashgar might require a lengthy application process, potentially taking weeks.

Furthermore, aircraft availability and suitability must be considered.  A smaller aircraft like a 757 might be ideal for the cargo size, but its availability in Kashgar needs to be confirmed.  Larger aircraft might be unsuitable or require repositioning, adding to the complexity and cost.