Dear SirHope you are fine.We’re a professional dealer in cement building materials. In the past, Lithium carbonate was used in the ground for a long time as a rapid solidification and increased use of fastness. After our long experiment, Lithium Sulfate can replace Lithium carbonate to a certain extent. So we need 30t/month . If it is possible, we can place an order for a container to start with. It would be appreciated if the price of Lithium Sulfate could be offered. We look forward to your early reply! Show More