Business is taken very seriously in Turkey and meetings have formal protocols and agenda which should be respected. However, they may not adhered to the agenda items and business might not be discussed in the first meeting.
They love short and direct to the point business presentations. So, if you planning to do business with them, you need to make sure that you have a clearly structured proposal before the meeting. Avoid using too much text as they like to communicate visually and orally during meetings. Instead, try using diagrams and graphics to illustrate the data.