Mineral fertilizers import request Serbia

One of my client is interested in carbamide 46% N, NPK (16:16:16) and NPK (8:16:24) mineral fertilizer.
Can you send me your best offer for 1000 ton each type fertilizer, please?
After receiving your offer we will need samples these fertilizers (3-5 kg) for analysis in our national laboratory.
Also, we need TDS's and MSDS's for these fertilizers. Can you send it by email, please?