SCOTIABANK (IRELAND) LIMITED I.F.S.C. House, Custom House Quay, Dublin 1, Ireland. Telephone: Dublin 353-1-790 2000 Fax: 353-1-670-0684 S.W.I.F.T. Address: NOSCIE 2X

Exhibit 4.29

SCOTIABANK (IRELAND) LIMITED
I.F.S.C. House, Xxxxxx Xxxxx Xxxx, Xxxxxx 0, Xxxxxxx.
Telephone: Xxxxxx 000-0-000 2000 Fax: 000-0-000-0000
S.W.I.F.T. Address: NOSCIE 2X

18 March 2010

The Directors
Stealthgas Inc
000 Xxxxxxxxx Xxxxxx
Xxxxxxxx 00000
Xxxxxx

For the attention of Mr. Xxxxxx Xxxxxxx

Dear Sir,

AMENDMENT LETTER

Stealthgas Inc. Facility Agreement For A USD46,875,000 Term Loan dated June 21 2007, as
amended by, among others, Supplemental Agreement dated 8 January 2008

Further to the request from yourselves, Scotiabank (Ireland) Ltd (“SBI”) agrees to the following amendments:

For a period from 1 Jan 2010 to the Maturity Date:

by deleting the definition of “Margin” and replacing it with:

“Margin” means, in relation to each Interest Period, 2.00% per annum.

For a period from 1 Jan 2010 to 30 September 2010 only:

by amending the definition of “Required Security Amount” to read:

“Required Security Amount” means the amount in USD (as certified by the Lender) which is ninety percent (90%) of the Loan

by amending the definition of “Security Value” to read:

“Security Value” means the amount in USD (as certified by the Lender) which is, at any relevant time, the aggregate of (a) the Valuation Amounts of the Mortgaged Vessels as most recently determined in accordance with clause 8.2.2 and (b) the net realizable market value of any additional security for the time being actually provided to the Lender pursuant to clause 8.2. l(b);

From 1 October 2010, the definitions of “Required Security Amount” and “Security Value” will revert to their definitions immediately prior to signing of this Amendment Letter.

Directors: X.X. Xxxxx — Chairman (Canada), X. Xxxxxxx — Chief Executive Officer (G.B), W.F.P. Swords.
X.X. Xxxx, I.S. Steers (G.B), X.X. Xxxxxx (G.B). P.A. Xxxxxxxx (G.B), G.H. Stlnnes (Germany).
Registered In Ireland 30350, A wholly owned subsidiary of The Bank of Nova Scotia International Limited
Scotiabank (Ireland) Limited Is authorised and regulated by the Financial Regulator In Ireland

-2-

If Stealthgas Inc. agrees with the foregoing, please sign and return to SBI the enclosed copy of this Amendment Letter no later than 20 March 2010. The amendment herein will not take effect until SBI receives your countersigned letter.

Yours sincerely /s/ Xxxxxx Xxxxxxx Scotiabank (Ireland) Limited STEALTHGAS INC X.X. Xxx 0000, Xxxxxx Xxxxxxxx Xxxx, Xxxxxxxx Xxxxxx, Xxxxxx MH96960, Xxxxxxxx Islands
/s/ Xxxxxx X. Xxxxxxx
Name:	Xxxxxx X. Xxxxxxx
Title:	CFO

For and on behalf of Stealthgas Inc.