We would like to request the best price for Sodium Carbonate 99% granules Quantity: 50 tones monthlyPrice : CIF Riyadh dry portDelivery: in Olive Propoline bags of 25 or 50 kilos. INSOLUBLE MATTER 0.05 MAX.PACKING 50 KG IF POSSIBALITY TO FIX THE PRICE FOR 3 YEARSREGARDSCountry:Saudi Arabia