Pacific Rim Mining 6-K Pacific Rim Mining Announces Fiscal 2013 Second Quarter Results

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 December, 2012

Commission File Number: 001-31328

PACIFIC RIM MINING CORP.
(Translation of registrant's name into English)

Suite #1050 – 625 Howe Street
Vancouver, B.C. V6C 2T6 Canada
(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 News Release dated December 11, 2012

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.

	Pacific Rim Mining Corp.
	(Registrant)
Date: December 11, 2012	By:	/s/ Barbara Henderson
		Barbara Henderson
	Title:	VP Investor Relations & Corporate Secretary