FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person *   HELLER LEON Z 2. Date of Event Requiring Statement (Month/Day/Year) 01/01/2013 3. Issuer Name and Ticker or Trading Symbol TMS International Corp. [TMS] (Last) (First) (Middle) 1155 BUSINESS CENTER DRIVE, SUITE 200 4. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Exec VP, Sec. & Gen Counsel 5. If Amendment, Date Original Filed(Month/Day/Year) (Street) HORSHAM, PA 19044 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Beneficially Owned

1.Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.			SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Class B Common Stock	04/05/2011	  (1)	Class A Common Stock	15,087	$ (1)	D	Â
Employee Stock Option (Right to Buy)	  (2)	04/13/2021	Class A Common Stock	3,750	$ 13	D	Â
Employee Stock Option (Right to Buy)	  (3)	04/13/2022	Class A Common Stock	3,750	$ 11.18	D	Â

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
HELLER LEON Z 1155 BUSINESS CENTER DRIVE SUITE 200 HORSHAM, PA 19044	Â	Â	  Exec VP, Sec. & Gen Counsel	Â

Signatures

/s/ Leon Z. Heller		01/09/2013
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 5(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Shares of Class B Common Stock are convertible on a one-for-one basis at any time, at the option of the holder, into shares of Class A Common Stock and are automatically convertible on a one-for-one basis into shares of Class A Common Stock upon a sale or other disposition to any person other than (i) a person who obtained Class B Common Stock through a direct issuance by the Issuer or (ii) Onex Corporation, Onex Partners II LP or any controlled affiliate of Onex Corporation or Onex Partners II LP. The Class B Common Stock has no expiration date.
(2)	The options were granted on April 13, 2011. The options become vested as follows: 10% on the first anniversary of the grant date, an additional 20% on the second anniversary of the grant date, an additional 30% on the third anniversary of the grant date and the remaining 40% on the fourth anniversary of the grant date. Additionally, 50% of the vested shares subject to the options shall only be exercisable if, as of the trading date immediately preceding the applicable exercise date, the closing price of a share is at least 115% of the exercise price. All of the unvested shares subject to the options shall become vested upon a change of control of the Issuer.
(3)	The options were granted on April 13, 2012. The options become vested as follows: 10% on the first anniversary of the grant date, an additional 20% on the second anniversary of the grant date, an additional 30% on the third anniversary of the grant date and the remaining 40% on the fourth anniversary of the grant date. Additionally, 50% of the vested shares subject to the options shall only be exercisable if, as of the trading date immediately preceding the applicable exercise date, the closing price of a share is at least 115% of the exercise price. All of the unvested shares subject to the options shall become vested upon a change of control of the Issuer.

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