IV. Diosdado, a carpenter, was hired by Building Industries Corporation (BIC), and assigned to build a small house in Alabang. His contract of employment specifically referred to him as a "project employee," although it did not provide any particular date of completion of the project. Is the completion of the house a valid cause for the termination of Diosdado’s employment? If so, what are the due process requirements that the BIC must satisfy? If not, why not? (3%)