EX-99.1 5 exh99-1_16000.htm SEC COVER LETTER

Unassociated Document

EXHIBIT 99.1

FILED VIA EDGAR

July 28, 2008

Securities and Exchange Commission

450 5th Street, N.W.

Washington, DC  20549

RE:	Joint Insured Fidelity Bond for Investment Companies – SEC Rule 17g-1
	MassMutual Participation Investors (File No. 811-05531)

Sir or Madam:

Pursuant to SEC Rule 17g-1(g)(1)(B) under the Investment Company Act of 1940, as amended (the “1940 Act”), enclosed herewith for filing on behalf of MassMutual Participation Investors (the “Trust”) are the following:

1)   Copy of the Investment Company Blanket Bond (Bond No. 067-68-34 issued by National Union Fire Insurance Company of Pittsburgh, PA, a member of the American International Group (the “Bond”), effective November 4, 2007 and delivered to the Trust on July 18, 2008;

2)   Certified copy of the resolutions dated November 14, 2007 of the Trust’s Board of Trustees, including a majority of the Trustees who are not “interested persons” (as defined by the 1940 Act) of the Trust, approving the amount, type, form and coverage of the Bond and the portion of the premium to be paid by the Trust; and

3)   Copy of the agreement effective November 4, 2007 between the Trust and MassMutual Corporate Investors entered into pursuant to paragraph (f) of Rule 17g-1.

The Trust would have provided and maintained a single bond in the amount of $525,000, if it was not named as an insured under a joint insured bond.  Premiums on the Bond were paid through November 4, 2008, the expiration date of the Bond.

Very truly yours,

/s/ Jason Pratt
Jason Pratt

Associate Secretary

Exhibits