Section 9. Surety Bonds. The Principal and Alternate Trustees shall be bonded by a duly authorized surety company in such amounts as may be determined from time to time by the Trustees. Each employee employed by the Trustees who is empowered to sign checks or withdrawal slips as aforesaid or who may be engaged in handling monies of the Health Fund shall also be similarly bonded by a duly authorized surety company. The premium for such bonds shall be paid by the Health Fund.