Fly ash for concrete processing price inquiry from Croatia

I am currently doing a market study for a large client from USA, interested in granulated blast furnace slag (GBFS),
ground granulated blast furnace slag (GGBFS) and fly ash purchase.
Kindly revert with following information
1) what volume is your company currently producing
2) what other products you produce
3) which facilities/locations your company consists of
4) what quality you can guarantee
5) if you are exporting mentioned products, which sea ports are you using