Dear SirWe are one of the manufacturer of animal medicine which locted in Shandong Province of China, we are professional in producing Oxytetracycline Hcl/Base, Monensin, Iron dextran, and more or less 90% of our product were exported to USA and EU, so please turst us we can support you with the best quality product and, of course, also we will try our best to offer you our best price. So, sir, for any requirement, we are very appreciate if you could let us know, thanks in advance. Best regardsRen Lianfeng