18. The sovereign Republic of Handskaland, represented by Ambassador Hansen, entered into a five-year contract with Hardee Services Corporation (HSC) for the maintenance and repair of the electrical facilities of its embassy in the Philippines. Ambassador Hansen pre- terminated the agreement after discovering HSC’s faulty electrical works. Aggrieved, HSC filed against the Republic of Handskaland and Ambassador Hansen a complaint for damages. HSC argued that the Republic of Handskaland and Ambassador Hansen waived their immunity from suit when they entered into a contract. Did the Republic of Handskaland and Ambassador Hansen waive their immunity from suit? Explain.