"If the preliminary notice was sent with a figure derived by rational estimate, only one preliminary notice is needed unless a separate contract with another party is executed." As a SUPPLIER of MATERIALS ONLY...is the contract referenced in the statement above in reference to the contract with one or more parties involved in the original Pre-Lien, or would this reference include a manufacturer or distributor that said SUPPLIER is getting the material from. This is the party that would be shipping the material to said Material Supplier's customer direct on Material Supplier's behalf. They are not included in our Preliminary notice, because they are Downline from supplier, not upline.