Dead burnt magnesite buying inquiry from India

Dear Sir,
We shall import at least 250 ton monthly subject to A1 quality if you have. DBM of following specification.
MgO : 88 %, SiO2 : 6 % max, Fe2O3 : 0.5 % max, LOI : 0.2 % max, BD : 3.25 min, AP: 1.5% max, Color : Creamish to whitish