Looking for poplin fabric Germany

hello, for the production of poplin boxershorts, I am looking for a supplier of OEKO TEX 100 woven cotton poplin fabric that has stock fabric. How can I find such a supplier in Turkey?

I will write my full request:
I am looking for OEKO TEX 100 cotton poplin with around 110 g/m², yarn 50:
classic gingham and stripes (available stock fabric).