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Orezone Announces Recent Drilling Results at Bomboré Project

Drill Results

OREZONE ANNOUNCES RECENT DRILLING RESULTS AT BOMBORÉ PROJECT

September 12, 2017 - Orezone Gold Corporation (“Orezone” or the “Company”) (TSXV:ORE) is pleased

to report recent Reverse Circulation (“RC”) drilling results from the first two of four specifically identified

target areas (See Press Release of June 22nd 2017) that have been prioritized within the Bomboré deposit

to better define the extent and the geometry of discrete zones of high-grade gold mineralization within

the oxidized portion of the known gold resources.

The drilling at both Siga East and Siga South has been very successful in intercepting high grade

mineralization which should improve grade domaining. More dr illing will be required in certain areas

to confirm the geometry of discrete higher grade zones.

Highlights from Siga East and Siga South (true width has yet to be determined):

• BBC4505: from 6 to 11m: 5m @ 3.176 gpt, incl. 1m @ 12.7 gpt;

• BBC4506: from 40 to 55m: 15m @ 7.541 gpt, incl. 8m @ 13.2 gpt;

• BBC4523: from 18 to 34m: 16m @ 1.675 gpt, incl. 1m @ 8.5 gpt; and

from 41 to 43m: 2m @ 7.816 gpt, incl. 1m @ 14.7 gpt;

• BBC4534: from 54 to 56m: 2m @7.343 gpt, incl. 1m @ 14.2 gpt ;

• BBC4547: from 28 to 39m: 11m @ 2.372 gpt, incl. 2m @ 6.2 gpt;

• BBC4555: from 56 to 63m: 7m @ 2.107 gpt, incl. 1m @ 6.1 gpt;

• BBC4556: from 31 to 32 m: 1m @ 9.603 gpt;

• BBC4556: from 34 to 41m: 7m @ 5.802 gpt, incl. 1m @ 9.3 gpt;

• BBC4560: from 18 to 20m: 2m @ 5.413 gpt, incl. 1m @ 9.5 gpt;

• BBC4561: from 19 to 22m: 3m @ 4.071 gpt, incl. 1m @ 5.9 gpt;

• BBC4562: from 37 to 41m: 4m @ 10.816 gpt, incl. 1m @ 40.9 gpt;

• BBC4564: from 0 to 16m: 16m @ 2.270 gpt, incl. 1m @ 11.0 gpt;

• BBC4571: from 10 to 18m: 8m @ 2.091gpt, incl. 1m @10.7gpt;

• BBC4573: from 16 to 42m: 26m @ 2.011 gpt, incl. 1m @ 10.1 gpt; and

from 48 to 49m: 1m @ 10.092 gpt;

• BBC4574: from 9 to 17m: 8m @ 1.875 gpt, incl. 1m @ 6.4 gpt;

• BBC4583: from 16 to 30m: 14m @ 1.465 gpt, incl. 1m @ 7.0 gpt;

• BBC4606: from 35 to 44m: 9m @ 4.323 gpt.

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Other Significant highlights (true width has yet to be determined):

• BBC4494: from 7 to 17m: 10m @ 1.390 gpt;

• BBC4497: from 6 to 25m: 19m @ 0.911 gpt, incl. 1m @ 6.3 gpt; and

• BBC4502: from 15 to 43m: 28m @ 0.889 gpt;

• BBC4515: from 19 to 43m: 24m @ 0.834 gpt;

• BBC4516: from 1 to 19m: 18m @ 1.004 gpt:

• BBC4521: from 22 to 37m: 15m @ 1.279 gpt;

• BBC4522: from 1 to 16m: 15m @ 1.313 gpt;

• BBC4526: from 6 to 17m: 11m @ 1.545 gpt;

• BBC4527: from 24 to 36m: 12m @ 1.189 gpt;

• BBC4539: from 12 to 28m: 16m @ 0.957 gpt, incl. 1m @ 5.5 gpt;

• BBC4546: from 5 to 15m: 10m @ 1.178 gpt;

• BBC4549: from 57 to 64m: 7m @ 2.073 gpt;

• BBC4550: from 39 to 50m: 11m @ 0.913 gpt;

• BBC4551: from 25 to 38m: 13m @ 0.961 gpt;

• BBC4554: from 25 to 34m: 9m @ 1.474 gpt, and from 66m to 76m: 10m @ 1.363 gpt;

• BBC4557: from 60 to 66m: 6m @ 1.821 gpt;

• BBC4561: from 24 to 36m: 12m @ 1.209 gpt, incl. 1m @ 6.9 gpt;

• BBC4562: from 44 to 50m: 6m @ 1.942 gpt;

• BBC4564: from 19 to 28m: 9m @ 1.222 gpt;

• BBC4565: from 31 to 55m: 24m @ 0.976 gpt;

• BBC4570: from 6 to 31m: 25m @ 0.921 gpt; and from 43 to 52m: 9m @ 1.22 5 gpt;

• BBC4574: from 21 to 31m: 10m @ 1.141 gpt;

• BBC4578: from 0 to 17m: 17m @ 0.999 gpt, and from 19 to 33m: 14m @ 1.036 gpt;

• BBC4579: from 3 to 16m: 13m @ 0.919 gpt;

• BBC4581: from 24 to 31m: 7m @2.135 gpt, incl. 1m @ 5.5 gpt;

• BBC4593: from 0 to 6m: 6m @ 2.026 gpt, incl. 1m @ 5 gpt;

• BBC4601: from 36 to 42m: 6 m @ 2.097 gpt;

• BBC4606: from 8 to 14m: 6m @ 1.704 gpt;

• BBC4612: from 1 to 19m: 18m @ 1.176 gpt.

Patrick Downey President and CEO stated “We are extremely pleased with these drill results. We are now

convinced that the specifically targeted areas can be discretely modelled within the main zone which

should have a positive impact on the continued development of the project and we look forward to the

ongoing drill results from the P11 and CFU zones.”

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The RC drilling programme commenced on July 8 , 2017 and was designed as essentially infill holes to

tighten up the drill spacing from 50 m by 25 m to 2 5 m by 25 m in the four specific target areas. To

date 187 drill holes totalling approximately 9,400m have been completed at Siga East and Siga South.

The drilling is ongoing with 4,500 m of RC drilling planned on the P11 and CFU target areas and these

results are expected to be released early in Q4 2017. Another 3,000 m should also be completed on

sites that were skipped pending the end of the rainy season and others that warrant follow-up drilling

or where more drilling should better confirm the geometry of the high-grade zones.

The mineralized intervals are based on a lower cut -off grade of 0.45 g/t, a minimal width of 2 m and

up to a maximum of 1.5 m of dilution being included. The true width of the mineralization is

approximately 90% of the drill length at Siga South and Siga East. The RC drilling samples were divided

by Orezone employees using Rotary Sample Dividers (RSDs). A 2-kg split was prepared by SGS Burkina

Faso s.a.r.l. at the Bomboré sample preparation facility and then split by Orezone to 1 kg using Rotary

Sample Dividers (RSDs). A 1-kg aliquot was analyzed for leachable gold at BIGS Global Burkina s.a.r.l in

Ouagadougou, by bottle -roll cyanidation using a LeachWell TM catalyst. The leach residues from all

samples with a leach grade in excess of 0.2 g/t were prepared by BIGS Global Burkina s.a.r.l. and then

split by Orezone to 50 g using Rotary Sample Dividers (RSDs). A 50 g aliquot was analyzed by fire assay

at SGS Burkina Faso s.a.r.l. The composite width and grade include the final leach residue assay results

for most of the drill intercepts reported ; leach residue assays are pending for 29 RC holes . Orezone

employs a rigorous Quality Control Program (QCP) including a minimum of 10% standards, blanks and

duplicates. A complete list of assay results from the current RC drilling programme can be found on

the Company’s website at the following link (Drill Results).

Qualified Person(s)

Tim Miller, SME and COO, Pascal Marquis, Geo and SVP and Patrick Downey, PEng and CEO of Orezone,

are Qualified Persons under National Instrument 43 -101 and have approved the information in this

release. Readers should refer to the annual information form of Orezone for the year ended December

31, 2016 and other continuous disclosure documents filed by Orezone since January 1, 2017 available

at www.sedar.com, for this detailed information, which is subject to the qualifi cations and notes set

forth therein.

About Orezone Gold Corporation

Orezone is a Canadian company with a successful gold discovery track record and recent mine

development experience in Burkina Faso, West Africa. The Company owns a 90% inte rest in Bomboré,

a fully permitted, undeveloped oxide gold deposit in West Africa, which is situated 85 km east of the

capital city, adjacent to an international highway.

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For further information please contact Orezone at +1 (613) 241 -3699 or visit the Company’s website

at www.orezone.com.

Orezone Gold Corporation

Patrick Downey,

President and Chief Executive Officer

Tel: 1 613 241 3699 / Toll Free: 1 888 673 0663

[email protected] /www.orezone.com

FORWARD-LOOKING STATEMENTS AND FORWARD-LOOKING INFORMATION:

This news release contains certain “forward -looking statements” within the meaning of applicable

Canadian securities laws. Forward-looking statements and forward-looking information are frequently

characterized by words such as “plan”, “expect”, “project”, “intend”, “believe”, “anticipate”, “estimate”,

“potential”, “possible” and other similar words, or statements that certain events or conditions “may”,

“will”, “could”, or “should” occur. Forward -looking statements in this release include statements

regarding, among others; the drill results from the Siga East and Siga South should improve grade

domaining and have a positive impact on the ongoing development of the project, an additional 4,500

m will be completed on P11 and CFU target areas with an addition al 3,000 m of drilling on other sites

that were skipped.

Although the forward -looking statements contained in this news release are based upon what

management of the Company believes are reasonable assumptions, the Company cannot assure

investors that actual results will be consistent with these forward-looking statements. These forward-

looking statements are made as of the date of this news release and are expressly qualified in their

entirety by this cautionary statement. Subject to applicable securities laws, the Company does not

assume any obligation to update or revise the forward -looking statements contained herein to reflect

events or circumstances occurring after the date of this news release.

Neither TSX Venture Exchange nor its Regulation Service s Provider (as that term is defined in policies

of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.