EX-16.1 2 ex16_1.txt Exhibit 16.1 ARMANDO C. IBARRA Certified Public Accountant A Professional Corporation 371 `E' Street, Chula Vista, CA 91910 Tel: (619) 422-1348 Fax: (619) 422-1465 -------------------------------------------------------------------------------- June 4, 2007 Securities and Exchange Commission 100 F Street N.E. Washington, D.C. 20549 Dear Sirs/Madams: We have read and agree with the comments in Item 4.01 of Form 8-K of Global Biotech Corp. dated June 4, 2007 related to the resignation of our firm as the registrant's independent registered public accounting firm. Yours truly, /s/ Armando C. Ibarra, Certified Public Accountant Armando C. Ibarra, Certified Public Accountant Chula Vista, California