1 EXHIBIT 10.21 [BANK OF BOSTON Letterhead] PRIVATE & CONFIDENTIAL May 14, 1996 Flextronics Singapore Pte Ltd. 514 Chai Chee Lane #04-13 Singapore 469029 ATTENTION: MR. C P GOH CHIEF FINANCIAL OFFICER Dear Sir RE : BRIDGE LOAN FACILITY We refer to our advising letter dated January 29, 1996 and are pleased to confirm that we are prepared to extend the maturity date of the said facility from April 30, 1996 to June 30, 1996 or drawdown on the syndicated Revolver whichever is earlier. All other terms and conditions for this facility remain unchanged as per our advising letter dated January 29, 1996. Kindly note that this offer will remain valid for a period of 10 days from the date of this letter. We would therefore appreciate it if you would return the copy of this letter, duly signed by you, constituting your acceptance and agreement to the terms and conditions hereof, prior to the expiry of this offer. Yours Very Truly The First National Bank of Boston /s/ Lo Kah-Nian /s/ Soh Boon Hock Lo Kah-Nian Soh Boon Hock Vice President & Manager Vice President & Head Corporate Banking Corporate Banking /s/ Soh Boon Hock Soh Boon Hock Vice President & Head Corporate Banking ACCEPTED AND AGREED BY: /s/ Chang Peng Goh - ----------------------------------------------------------- AUTHORIZED SIGNATORIES OF FLEXTRONICS SINGAPORE PTE LTD DATED: May 10, 1996 Encs LKN/OL/FLEX-TEM 150 Beach Road #07-00, Gateway West, Singapore 189720. Telex: RS 23689 Facsimile: 2960998 Telephone: 2962366 (General) 2960622 (Dealing) THE FIRST NATIONAL BANK OF BOSTON INCORPORATED WITH LIMITED LIABILITY IN THE USA