Gammon Gold Revises Cost Guidance Downward and Confirms Production Guidance at Ocampo, Reports Preliminary Production and Cash Costs for July and August and Will Present at the Denver Gold Forum on September 21, 2010

TSX: GAM / NYSE: GRS / BSX: GL7 TORONTO

TORONTO, September 16, 2010 - Gammon Gold Inc. ("Gammon") (TSX:GAM and NYSE:GRS): Gammon is pleased to
report that, as a result of strong operational performance at the Ocampo
mine, the Company is reducing its cost guidance for 2010. Total Ocampo cash
costs for 2010 are now expected to be between $410 and $435 per gold
equivalent ounce(1) (down from previous guidance of $425 to $450). All
dollar amounts reported are in U.S. dollars unless otherwise indicated.
Gammon is also pleased to confirm its 2010 production guidance. The Company
expects the Ocampo mine to produce between 100,000 and 110,000 ounces of
gold and 4.40 and 4.95 million ounces of silver, or 180,000 to 200,000 gold
equivalent ounces(1). Prior to the suspension of operations in early June,
production from El Cubo in 2010 was 20,596 gold equivalent ounces(1) at
total cash costs of $755 per gold equivalent ounce(1). In addition, the
Company provides preliminary production results from the Ocampo mine for
July and August, 2010. "Ocampo continues to perform well with most key
performants metrics nearing or exceeding targeted levels in July and August
, despite an unusually difficult rainy season. Particularly encouraging is
the performance of the underground mine where in July and August we
averaged more than 1,600 tonnes per day, exceeding our targeted level of 1,
500 tonnes per day. Underground development also continues to exceed
targeted levels as we realize the positive impact of the additional
workforce that was redeployed from our El Cubo mine in late June. In July
and August, underground development averaged over 2,200 metres per month."
stated Rene Marion, President and Chief Executive Officer. He continued, "
The positive results reported from Ocampo, resulting in continued
reductions in total cash costs, continue to demonstrate the potential of
this asset. This supports our recent strategy of increasing our land
position by more than 323% in the highly prospective Ocampo - Pinos Altos
area through the acquisition of the Venus and Los Jarros Properties."

    Ocampo Production Highlights - July and August, 2010
    -------------------------------------------------------------------------
    - For July and August the Ocampo mine reported production of 18,261 gold
      ounces and 794,531 silver ounces, or 32,707 gold equivalent ounces(1)
      (30,316 gold equivalent ounces, using the realized gold-to-silver ratio
      of 66:1).

    - Total cash costs for July and August at Ocampo were $407 per gold
      equivalent ounce(1) ($439 per gold equivalent ounce, using the realized
      gold-to-silver ratio of 66:1). Utilizing Ocampo's silver revenues as a
      by-product cost credit, total cash costs were negative $82 per gold
      ounce. Year to date Ocampo total cash costs are $421 per gold
      equivalent ounce(1) ($454 per gold equivalent ounce, using the realized
      gold-to-silver ratio of 66:1). Utilizing Ocampo's silver revenues as a
      by-product cost credit, total cash costs are negative $32 per gold
      ounce.

                   Ocampo Production and Total Cash Costs
    -------------------------------------------------------------------------
    Production                                    July and August   2010 YTD
    -------------------------------------------------------------------------
    Gold Ounces Produced                               18,261         65,079
    -------------------------------------------------------------------------
    Silver Ounces Produced                            794,531      2,822,346
    -------------------------------------------------------------------------
    Gold Equivalency Rate (Realized)                       66             66
    -------------------------------------------------------------------------
    Gold Eq. Ounces Produced (Realized)                30,316        108,224
    -------------------------------------------------------------------------
    Gold Eq. Ounces Produced (55:1)(1)                 32,707        116,395
    -------------------------------------------------------------------------
    Total Cash Costs(3)
    -------------------------------------------------------------------------
    Cash Costs per Gold Eq. Ounce (Realized)(2)          $439           $454
    -------------------------------------------------------------------------
    Cash Costs per Gold Eq. Ounce (55:1)(1)(2)           $407           $421
    -------------------------------------------------------------------------
    Cash Costs per Gold Ounce(2)                         ($82)          ($32)
    -------------------------------------------------------------------------
    (1) Comparative performance metrics using the Company's long term gold
        equivalency guidance ratio (55:1)
    (2) Cash costs for the period have not been finalized and are subject to
        adjustment
    (3) Total cash costs is a non-GAAP measure financial measure that the
        Company uses to assess its performance. Total cash costs per ounce do
        not have any standardized meaning under GAAP. See "Non-GAAP Financial
        Measures" in the Company's Management's Discussion and Analysis for
        the second quarter, 2010.

Gammon to Present at the Denver Gold Forum

Gammon advises that the Company will be making a presentation at the
Denver Gold Forum on Tuesday, September 21, 2010 at 8:30 am Mountain Time
/ 10:30 am Eastern Time. Gammon's presentation will be webcast live and can
be accessed through the following link:
www.gowebcasting.com/conferences/2010/09/20/denver-gold-forum/day/2.
The presentation will also be posted on the Company's corporate website and
can be accessed at www.gammongold.com. About Gammon Gold Gammon Gold Inc.
is a mid-tier gold and silver producer with properties in Mexico. Gammon's
flagship Ocampo Property in Chihuahua State achieved commercial production
in January 2007. Gammon Gold also owns the suspended El Cubo mine in
Guanajuato State and has the promising Guadalupe y Calvo development
property in Chihuahua State. Gammon recently completed option purchase
agreements to acquire the Mezquite Project in Zacatecas State, Mexico and
the Venus Project located north of the Ocampo mine. Gammon also recently
signed a Definitive Agreement to acquire the Los Jarros Project in
Chihuahua State. Since 2008, the Company has increased its Mexican land
position by over 59% and has made strategic investments in Golden Queen
Mining Co. Ltd. and Corex Gold Corporation. The Company's Executive Office
is located in Toronto, Ontario.

Cautionary Statement Cautionary Note to US Investors

The United States Securities and Exchange Commission permits US
mining companies, in their filings with the SEC, to disclose only those
mineral deposits that a company can economically and legally extract or
produce. This press release uses certain terms, such as "measured," "
indicated," and "inferred" "resources," that the SEC guidelines strictly
prohibit US registered companies from including in their filings with the
SEC. US Investors are urged to consider closely the disclosure in Gammon
Gold's Annual Report on Form 40-F/A, which may be secured from Gammon Gold,
or from the SEC's website at www.sec.gov/edgar.shtml. No stock
exchange, securities commission or other regulatory authority has approved
or disapproved the information contained herein. Certain statements
included herein, including information as to the future financial or
operating performance of the Company, its subsidiaries and its projects,
constitute forward-looking statements. The words "believe", "expect", "
anticipate", "contemplate", "target", "plan", "intends", "continue", "
budget", "estimate", "forecast", "may", "will", "schedule" and similar
expressions identify forward-looking statements. Forward-looking statements
include, among other things, statements regarding targets, estimates and
assumptions in respect of gold and silver production and prices, operating
costs, results and capital expenditures, mineral reserves and mineral
resources and anticipated grades, recovery rates, future financial or
operating performance, margins, operating and exploration expenditures,
costs and timing of the development of new deposits, costs and timing of
construction, costs and timing of future exploration and reclamation
expenses including, anticipated 2010 and 2011 results, operating
performance projections for 2010 and 2011, our ability to fully fund our
business model internally, 2010 and 2011 gold and silver production and the
cash and operating costs associated therewith, the ability to achieve
productivity and operational efficiencies, further improvements to silver
recoveries resulting from improvements to the Ocampo mill and the timing of
each thereof. Forward-looking statements are necessarily based upon a
number of estimates and assumptions that, while considered reasonable by
the Company, are inherently subject to significant business, economic,
competitive, political and social uncertainties and contingencies. Many
factors could cause the Company's actual results to differ materially from
those expressed or implied in any forward-looking statements made by, or on
behalf of, the Company. Such factors include, among others, known and
unknown uncertainties and risks relating to additional funding requirements
, reserve and resource estimates, commodity prices, hedging activities,
exploration, development and operating risks, illegal miners, political and
foreign risk, uninsurable risks, competition, limited mining operations,
production risks, environmental regulation and liability, government
regulation, currency fluctuations, recent losses and write-downs,
restrictions in the Company's loan facility, dependence on key employees,
possible variations of ore grade or recovery rates, failure of plant,
equipment or process to operate as anticipated, accidents and labour
disputes. Investors are cautioned that forward-looking statements are not
guarantees of future performance and, accordingly, investors are cautioned
not to put undue reliance on forward-looking statements due to the inherent
uncertainty therein.

(1) Comparative performance metrics using the Company's long term gold
equivalency guidance ratio (55:1)

For further information: please visit the Gammon Gold website at
www.gammongold.com or contact: Rene Marion
, President and Chief Executive Officer, Gammon Gold Inc., +1(416)646-3825;
Anne Day, Director of Investor Relations, Gammon Gold Inc., +1(902)468-0614

For further information: please visit the Gammon Gold website at www.gammongold.com or contact: Rene Marion, President and Chief Executive Officer, Gammon Gold Inc., +1(416)646-3825; Anne Day, Director of Investor Relations, Gammon Gold Inc., +1(902)468-0614