Beryl ore deliveries request

We have interest in Beryllium ore deliveries. Our annual demand is 600 MT (net weight) as per specification:
BeO mass fraction - 8% min. Preferable index: BeO mass fraction – 10%, min.
Admixture:
SiО2 mass fraction: 70% max.
Fe mass fraction: 3% max.
Mn mass fraction: 1% max.
Zn mass fraction: 0,1% max.
Pb mass fraction: 0,1% max.
S mass fraction: 0,5% max.
F mass fraction: 0,5% max.
Particle size: 5 mm max
Packaging: Big bag with capacity up to 1 200 kg
The raw materials are not to contain elements of pollution and foreign materials (oils, objects, garbage, etc.) and precious metals.