Exhibit 10.13(a) PriceSmart, Inc. 4649 Morena Blvd. San Diego, CA 92117 Tel 619 581-7485 Fax 619 581-4707 To: Kurt A. May From: Allan C. Youngberg Re: AMENDMENT TO EMPLOYMENT AGREEMENT Date: November 22, 1999 This will confirm that, effective as of October 1, 1999, the Base Salary under your Employment Agreement with PriceSmart, Inc. was increased, from $200,000 to $225,000. Your Employment Agreement is deemed amended accordingly. All other terms and conditions of your Employment Agreement remain the same. Please sign below acknowledging the foregoing, and return a copy of this document, with your signature, to me. Dated: November 23, 1999 ----------------- /s/ Allan Youngberg - ------------------- Allan C. Youngberg Dated: November 30, 1999 ----------------- /s/ Kurt A. May - --------------- Kurt A. May