Chemical to use in Subsea Concrete Mattress

we are a private egyptian company work in oil& gas field , we have a plan to go through the sub sea concret mattress , since we are a cementing company we have the equipments required for this type of service , when we went through the study of this project we stopped on the chemicals required to be add to the mixture
and since you are a chemical manufacture may can help to configer the type of chemicals used and we are ready to import it from you.
best regards