SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of

the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): April 30, 2009

STEN CORPORATION

(Exact name of registrant as specified in its charter)

Minnesota

000-18785

41-1391803

(State or other jurisdiction

of incorporation)

(Commission File Number)

(IRS Employer

ID Number)

10275 Wayzata Blvd. Suite 310, Minnetonka, Minnesota 55305

(Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code (952) 545-2776

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

¨	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
¨	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
¨	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
¨	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Items under Sections 1 through 6 and 8 are not applicable and therefore omitted.

Item 7.01

Regulation FD Disclosure.

On April 30, 2009, STEN Corporation (the “Company”) mailed a letter to the holders of its renewable unsecured subordinated notes (the “subordinated notes”), a copy of which letter is attached hereto as Exhibit 99.1. The letter to the holders of the subordinated notes contains certain material non-public information regarding the Company.

Forward Looking Statements

The letter to subordinated note holders attached hereto as Exhibit 99.1 contains forward-looking statements that are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Any statements contained therein that are not statements of historical fact may be deemed to be forward-looking statements. Without limiting the foregoing, words such as “may,” “will,” “expect,” “believe,” “anticipate,” “estimate” or “continue” or comparable terminology are intended to identify forward-looking statements. Such forward looking statements include, for example, statements about the Company’s business or future results, statements about the Company’s intentions with respect to the subordinated notes, and statements about the Company’s ability to repay the subordinated notes. These statements are based upon management’s current expectations and are subject to certain risks and uncertainties that could cause the actual results to differ materially from those described in the forward-looking statements. These risks and uncertainties include market conditions and other factors beyond the Company’s control and the risk factors and other cautionary statements described in the Company’s Annual Report on Form 10-K for the year ended September 28, 2008 and other documents filed with the Securities and Exchange Commission.

Item 9.01

Financial Statements and Exhibits

Exhibit	Description
99.1	Letter from STEN Corporation to Note Holders dated April 30, 2009.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: April 30, 2009

STEN CORPORATION

By: /s/ Kenneth W. Brimmer

Kenneth W. Brimmer

Chief Executive Officer

STEN CORP 8-K