6-K

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16
UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of June, 2012

Commission File Number: 0-26005

MICROMEM TECHNOLOGIES INC.
(Translation of registrant's name into English)

777 Bay Street, Suite 1910, Toronto, On M5G 2C8
(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

[ x ] Form 20-F   [] Form 40-F

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): []

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): []

SUBMITTED HEREWITH

Exhibits

99.1	Press Release; Micromem GSI Westwind complete open loop prototype testing and moves to production first articles
99.2	Press Release; Raises Additional Funds
99.3	Press Release; Completes Private Placement

SIGNATURES

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.

	MICROMEM TECHNOLOGIES INC.
	(Registrant)
Date: June 19, 2012	By:	/s/ Joseph Fuda
		Joseph Fuda
	Title:	Chief Executive Officer

EX-99.1

Exhibit 99.1

FOR IMMEDIATE RELEASE June 19, 2012

Micromem Technologies Inc. GSI Westwind complete open loop prototype testing
and moves to production first articles

Toronto, New York, June 19, 2012: Micromem Technologies Inc. (“Micromem”) (CNSX: MRM, OTCBB: MMTIF) through its wholly owned subsidiary, Micromem Applied Sensor Technologies Inc.(“MAST”), announces that it has finalized open loop testing of the “Speed control circuit” with GSI Westwind and have completed the original development contract. A MAST lead board designer was on site recently in Poole England to assist in the final open loop testing and validate open loop performance. MAST is providing additional circuit boards for GSI Westwind for closed loop compatibility with their third party drive partners. All work on the base development contract has been completed.

MAST has now been requested to provide first production articles for GSI approval. Due to the very small form factor of our circuit board, GSI Westwind has been able to optimize their spindle further. The first production articles will actually be even smaller in diameter than the original development board. In addition MAST will be incorporating an innovative method of securing the outgoing signal wires to accommodate the extremely small available routing space. Production volume pricing has been issued to GSI Westwind.

Joseph Fuda states “The accomplishment of this milestone validates not only our business model but now sets Micromem on the road to revenue not just charging for research and development projects but right to commercialization, Micromem is now in business.” Joseph Fuda also said “ Considering the pipeline of customers and projects that the company has become involved in, the success we have now accomplished shows well for our ability to deliver not only on proof of concepts but to bring in new products into the market that never existed before.”

Micromem will be releasing the terms of the commercial agreement in a separate press release.

About Micromem and MASTInc

MASTInc is a wholly owned U.S.-based subsidiary of Micromem Technologies Inc., a publicly traded (OTC BB: MMTIF, CNSX: MRM) company. MASTInc responsibly analyzes the specific industry sectors to create intelligent game-changing applications that address unmet market needs. By leveraging its expertise and experience with sophisticated magnetic sensor applications, MASTInc successfully powers the development and implementation of innovative solutions for healthcare/biomedical, natural resource exploration, government, information technology, manufacturing, and other industries. Visit www.micromeminc.com www.mastinc.com.

Safe Harbor Statement

This press release contains forward-looking statements. Such forward-looking statements are subject to a number of risks, assumptions and uncertainties that could cause the Company’s actual results to differ materially from those projected in such forward-looking statements. In particular, factors that could cause actual results to differ materially from those in forward looking statements include: our inability to obtain additional financing on acceptable terms; risk that our products and services will not gain widespread market acceptance; continued consumer adoption of digital technology; inability to compete with others who provide comparable products; the failure of our technology; the infringement of our technology with proprietary rights of third parties; inability to respond to consumer and technological demands; inability to replace significant customers; seasonal nature of our business; and other risks detailed in our filings with the Securities and Exchange Commission. Forward-looking statements speak only as of the date made and are not guarantees of future performance. We undertake no obligation to publicly update or revise any forward-looking statements. When used in this document, the words “believe,” “expect,” “anticipate,” “estimate,” “project,” “plan,” “should,” “intend,” “may,” “will,” “would,” “potential,” and similar expressions may be used to identify forward-looking statements.

The CNSX or any other securities regulatory authority has not reviewed and does not accept responsibility for the adequacy or accuracy of this press release that has been prepared by management.

###

Listing: NASD OTC-Bulletin Board - Symbol: MMTIF
               CNSX - Symbol: MRM

Shares issued: 125,311,665
SEC File No: 0-26005
Investor Contact: Jason Baun; Chief Information Officer; Tel. 416-364-2023

EX-99.2

Exhibit 99.2

FOR IMMEDIATE RELEASE May 30, 2012

Micromem Technologies Inc. Raises Additional Funds with the Exercise of Warrants

Toronto, New York, May 30, 2012: Micromem Technologies Inc. (the “Company”) (CNSX: MRM, OTCBB: MMTIF) announces the Company has raised additional funds through the exercise of 4,270,000 Common Share Purchase Warrants (“Warrants”). The Company raised a total of US $164,250 with strike prices ranging from US $0.14 -US $0.15 and CDN $375,000 with strike prices ranging from CDN $0.12 -CDN $0.20. These Warrants were originally issued in connection with financings completed in 2011. The proceeds will be used for general working capital purposes.

In addition the Company has moved its corporate headquarters to 121 Richmond Street West, Suite 304, Toronto, Ontario, M5H 2K1.

About Micromem and MASTInc

MASTInc is a wholly owned U.S.-based subsidiary of Micromem Technologies Inc., a publicly traded (OTC BB: MMTIF, CNSX: MRM) company. MASTInc responsibly analyzes the specific industry sectors to create intelligent game-changing applications that address unmet market needs. By leveraging its expertise and experience with sophisticated magnetic sensor applications, MASTInc successfully powers the development and implementation of innovative solutions for healthcare/biomedical, natural resource exploration, government, information technology, manufacturing, and other industries. Visit www.micromeminc.com www.mastinc.com.

Safe Harbor Statement

This press release contains forward-looking statements. Such forward-looking statements are subject to a number of risks, assumptions and uncertainties that could cause the Company’s actual results to differ materially from those projected in such forward-looking statements. In particular, factors that could cause actual results to differ materially from those in forward looking statements include: our inability to obtain additional financing on acceptable terms; risk that our products and services will not gain widespread market acceptance; continued consumer adoption of digital technology; inability to compete with others who provide comparable products; the failure of our technology; the infringement of our technology with proprietary rights of third parties; inability to respond to consumer and technological demands; inability to replace significant customers; seasonal nature of our business; and other risks detailed in our filings with the Securities and Exchange Commission. Forward-looking statements speak only as of the date made and are not guarantees of future performance. We undertake no obligation to publicly update or revise any forward-looking statements. When used in this document, the words “believe,” “expect,” “anticipate,” “estimate,” “project,” “plan,” “should,” “intend,” “may,” “will,” “would,” “potential,” and similar expressions may be used to identify forward-looking statements.

The CNSX or any other securities regulatory authority has not reviewed and does not accept responsibility for the adequacy or accuracy of this press release that has been prepared by management.

###

Listing: NASD OTC-Bulletin Board - Symbol: MMTIF
CNSX - Symbol: MRM

Shares issued: 124,811,665
SEC File No: 0-26005
Investor Contact: Jason Baun, Chief Information Officer; Tel. 416-364-2023

EX-99.3

Exhibit 99.3

FOR IMMEDIATE RELEASE May 11, 2012

Micromem Technologies Inc. Completes Private Placement

Toronto, New York, May 11, 2012: Micromem Technologies Inc. (the “Company”) (CNSX: MRM, OTCBB: MMTIF) announces the completion of an arm’s length, brokered private placement totalling 208,333 Units (“Unit”) at a subscription price of US$0.24 per Unit for the gross proceeds of US $50,000. Each Unit is comprised of one Common Share (“Common Share”) and one Common Share Purchase Warrant (“Warrant”). Each Warrant may be exercised for one Common Share at an exercise price of US$0.30 for a period of one year. A 7% fee was paid in connection with this private placement.

The proceeds from the offering will be used for general working capital purposes and the shares will be subject to resale restrictions.

About Micromem and MASTInc

MASTInc is a wholly owned U.S.-based subsidiary of Micromem Technologies Inc., a publicly traded (OTC BB: MMTIF, CNSX: MRM) company. MASTInc responsibly analyzes the specific industry sectors to create intelligent game-changing applications that address unmet market needs. By leveraging its expertise and experience with sophisticated magnetic sensor applications, MASTInc successfully powers the development and implementation of innovative solutions for healthcare/biomedical, natural resource exploration, government, information technology, manufacturing, and other industries. Visit www.micromeminc.com www.mastinc.com.

Safe Harbor Statement

This press release contains forward-looking statements. Such forward-looking statements are subject to a number of risks, assumptions and uncertainties that could cause the Company’s actual results to differ materially from those projected in such forward-looking statements. In particular, factors that could cause actual results to differ materially from those in forward looking statements include: our inability to obtain additional financing on acceptable terms; risk that our products and services will not gain widespread market acceptance; continued consumer adoption of digital technology; inability to compete with others who provide comparable products; the failure of our technology; the infringement of our technology with proprietary rights of third parties; inability to respond to consumer and technological demands; inability to replace significant customers; seasonal nature of our business; and other risks detailed in our filings with the Securities and Exchange Commission. Forward-looking statements speak only as of the date made and are not guarantees of future performance. We undertake no obligation to publicly update or revise any forward-looking statements. When used in this document, the words “believe,” “expect,” “anticipate,” “estimate,” “project,” “plan,” “should,” “intend,” “may,” “will,” “would,” “potential,” and similar expressions may be used to identify forward-looking statements.

The CNSX or any other securities regulatory authority has not reviewed and does not accept responsibility for the adequacy or accuracy of this press release that has been prepared by management.

###

Listing: NASD OTC-Bulletin Board - Symbol: MMTIF
                CNSX - Symbol: MRM

Shares issued: 123,403,332
SEC File No: 0-26005
Investor Contact:
Jason Baun; Chief Information Officer; Tel. 416-364-2023