EURO Ressources :80% Increase in Reserves at Rosebel Mine Concession

PARIS, France, July 27, 2017:  EURO Ressources S.A. ("EURO") (Paris: EUR) today announced that on July 26, 2017, IAMGold Corp. ("IAMGOLD") released an updated Reserve and Resource estimate for its Rosebel gold mine in Suriname. This estimate is calculated as at June 30, 2017.

According to IAMGOLD's news release, at June 30, 2017, and compared to the end of 2016,

• Proven and probable reserves increased by 80% to 3.7 million ounces (on a 100% basis).
• Measured and indicated resources increased by 55% to 9.3 million ounces (on a 100% basis).
• Inferred resources increased by 322% to 2.7 million ounces (on a 100% basis).
• Average reserve grade remains unchanged at 1.0 g/t Au., but now includes dilution.
• Increased reserves extend Rosebel mine life to 2028.

For more details, please refer to the corresponding news release of IAMGOLD available on its website (http://www.iamgold.com/English/investors/news-releases/).

The terms "proven reserves", "probable reserve", "measured resources", "indicated resources" and "inferred resources" refer to those terms as they are recognized and required by Canadian regulations.

About EURO

EURO is a French company whose principal asset is a royalty payable by IAMGOLD related to the gold production of the Rosebel gold mine in Suriname (the "Rosebel royalty"). The Rosebel gold mine is 95%-owned by IAMGOLD, and is operated by IAMGOLD.  EURO has approximately 62.5 million shares outstanding.  IAMGOLD France S.A.S., an indirect wholly owned subsidiary of IAMGOLD, owns approximately 89.71% of all issued and outstanding shares of EURO.

Statements Regarding Forward-Looking Information:   Some statements in this news release are forward-looking statements.  Investors are cautioned that forward-looking statements are inherently uncertain and involve risks and uncertainties.   There can be no assurance that future developments affecting the Company will be those anticipated by management.

Not for distribution to United States newswire services or for dissemination in the United States.  The securities referred to herein have not been registered under the United States Securities Act of 1933, as amended (the Securities Act), and may not be offered or sold in the United States or to a U.S. person absent registration, or an applicable exemption from the registration requirements of the Securities Act.

Additional information relating to EURO Ressources S.A. is available on SEDAR at www.sedar.com.  Further requests for information should be addressed to: