Exhibit 4(b) SUB-INVESTMENT ADVISORY AGREEMENT AGREEMENT dated September 29, 2006, between BlackRock Advisors, LLC, a Delaware limited liability company (the "Advisor"), and BlackRock Investment Management, LLC, a Delaware limited liability company...Sub-Investment Advisory Agreement • December 28th, 2006 • Blackrock Principal Protected Trust • New York
Exhibit 4(c) SUB-INVESTMENT ADVISORY AGREEMENT AGREEMENT dated September 29, 2006, between BlackRock Advisors, LLC, a Delaware limited liability company (the "Advisor"), and BlackRock Asset Management U.K. Limited, a Delaware limited liability company...Sub-Investment Advisory Agreement • September 27th, 2006 • Merrill Lynch Latin America Fund Inc • New York