For cus­tomers who have already lever­aged their own buy­ing pow­er or has pro­pri­etary chem­istry, the oppor­tu­ni­ty to pro­vide your own raw mate­ri­als and/​or com­po­nents for toll ser­vices exists at Hav­i­land Prod­ucts. A zero-cost ware­house can eas­i­ly be set­up to acco­mo­date cus­tomer-sup­plied inven­to­ry as needed.