Mr. Pascal Hamelin reports

BONTERRA ANNOUNCES MINERAL RESOURCE ESTIMATES FOR ITS GOLD DEPOSITS IN THE URBAN BARRY CAMP, QUEBEC

Bonterra Resources Inc. has released results of the recently completed National Instrument 43-101 mineral resource estimates for the Gladiator, Barry and Moroy deposits located in the Urban-Barry camp in Quebec. Highlights of the mineral resource estimates for Gladiator include:

• Indicated resources of 743,000 tonnes at an average grade of 8.46 grams per tonne gold totalling 202,000 ounces gold;
• Inferred resources of 3,065,000 tonnes at an average grade of 9.10 grams per tonne gold totalling 897,000 ounces gold.

The results of the mineral resource estimates for the Gladiator, Barry, and Moroy deposits are summarized in an attached table. The mineral resource estimates for the Gladiator and Barry deposits are reported at a cut-off grade of 3.5 grams per tonne gold. The mineral resource estimate for the Moroy deposit is reported at a cut-off grade of 3.0 grams per tonne gold. The resource models are tabulated at various cut-off grades in associated tables. The mineral resource estimates have been prepared by SGS Geological Services of Blainville, Que., and has been reviewed internally by the corporation. The full technical report, which is being prepared in accordance with NI 43-101, will be available on SEDAR under the corporation's issuer profile within 45 days. The effective date of the current mineral resource estimate is May 24, 2019.

                                    MINERAL RESOURCE ESTIMATE 
                                     (effective May 24, 2019)
  
Deposit             Measured                    Indicated                    Inferred    
     
            Tonnes     Au        Au      Tonnes     Au        Au      Tonnes     Au         Au
Gladiator            (g/t)   ounces               (g/t)   ounces               (g/t)    ounces
       
                                        743,000   8.46   202,000   3,065,000   9.10    897,000
Barry                                 2,052,000   5.84   385,000   2,740,000   5.14    453,000
Moroy      302,000   5.66    55,000     365,000   4.77    56,000     396,000   4.32     55,000
Total      302,005   5.66    55,000   3,160,000   6.33   643,000   6,201,000   7.04  1,405,000

The classification of the current mineral resource estimates into measured, indicated and inferred are consistent with current 2014 CIM (Canadian Institute of Mining, Metallurgy and Petroleum) definition standards for mineral resources and mineral reserves

Mineral resources, which are not mineral reserves, do not have demonstrated economic viability. An inferred mineral resource has a lower level of confidence than that applying to a measured and indicated mineral resource and must not be converted to a mineral reserve. It is reasonably expected that the majority of inferred mineral resources could be upgraded to indicated mineral resources with continued exploration. All figures are rounded to reflect the relative accuracy of the estimate. Composites have been capped where appropriate.

Resources are presented undiluted and in situ and are considered to have reasonable prospects for economic extraction. In order to meet this requirement, the Gladiator, Barry and Moroy deposit mineralization are considered amenable for underground extraction.

Underground mineral resources are reported at a cut-off grade of 3.5 grams per tonne gold for Gladiator and Barry and 3.0 grams per tonne gold for Moroy. Cut-off grades are based on a gold price of $1,300 (U.S.) per ounce, a foreign exchange rate of 75 U.S. cents, gold recoveries of 93 per cent to 95 per cent, and reasonable mining, processing and transportation costs.

High-grade capping was done on composite data. Capping values of 30 grams per tonne gold to 55 grams per tonne gold were applied to all 3-D grade-controlled wire frame models. A fixed specific gravity value of 2.82 was used to estimate the tonnage from block model volumes for Moroy and Barry and 2.78 for Gladiator.

Mineral resources for Barry and Moroy are exclusive of material that has been mined.

Greg Gibson, executive chairman and interim chief executive officer of Bonterra Resources, commented: "We are pleased with the current mineral resource estimates on our three Urban-Barry gold deposits. The mineral resources delineated to date are a mere snapshot in time with further indications of continued expansion potential along strike and at depth for the three deposits."

About the Gladiator, Barry and Moroy deposits

The Gladiator, Barry and Moroy deposits are located in the Urban-Barry greenstone belt, approximately 200 kilometres northeast of Val d'Or, Que. The Moroy deposit is located on the Bachelor property which includes the Bachelor deposit and the Urban-Barry mill. The Gladiator and Barry deposits are located on the Urban-Barry property, approximately 125 kilometres and 110 kilometres, respectively, from the Urban-Barry mill.

The Moroy deposit is a shear-hosted gold deposit comprising multiple, subparallel, gold-bearing zones dipping moderately to steeply to the north. Moroy mineralization consists of disseminated sulphides within silica-hematite alteration located at the contacts of syenitic dikes. The Moroy deposit is located approximately 600 metres south of the Bachelor deposit and has been accessed underground from the Bachelor mine. The Moroy deposit has been delineated over strike length of approximately 400 metres and remains open for expansion.

The Barry deposit is a shear-hosted gold deposit with multiple parallel, subvertical, shear zones and a second set of veins dipping 50 degrees to 60 degrees to the south. The gold mineralization consists of disseminated sulphides within the shear zones and the veins with local visible gold. The Barry deposit has been delineated over one kilometre along strike and 600 metres vertical. The deposit remains open for expansion.

The Gladiator deposit occurs within a major shear corridor and is a quartz-vein-hosted gold deposit consisting of several steeply south-dipping vein and shear structures. Mineralization at Gladiator consists dominantly of free gold in quartz veins. Gladiator is currently defined over a 1.5-kilometre strike length and to a vertical depth of 800 metres. The Gladiator deposit remains open at depth and along strike.

The company currently has five drills operating on the Bachelor and Urban-Barry properties. These drills are testing a combination of resource-expansion-stage and earlier-stage exploration targets.

                  GLADIATOR MINERAL RESOURCE ESTIMATE 
                  TABULATED AT VARIOUS CUT-OFF GRADES
  
Cut-off                Indicated                      Inferred 
(Au g/t) 
               Tonnes      Au         Au       Tonnes     Au         Au 
                         (g/t)    ounces                (g/t)    ounces 

2           1,244,000    6.13    245,000    5,079,000   6.53  1,067,000
2.5         1,019,000    6.99    229,000    4,162,000   7.48  1,001,000
3             859,000    7.78    215,000    3,511,000   8.35    943,000
3.5           743,000    8.46    202,000    3,065,000   9.10    897,000
4             653,000    9.10    191,000    2,696,000   9.83    852,000

Notes: Values in the table are reported to illustrate the sensitivity 
of the block model to cut-off grade relative to the base-case 
resource estimate. The Gladiator resource estimate is based on a 
cut-off grade of 3.5 grams per tonne gold and values presented above 
and below the base case should not be interpreted as a mineral 
resource statement.

 
                    BARRY MINERAL RESOURCE ESTIMATE 
                  TABULATED AT VARIOUS CUT-OFF GRADES
  
Cut-off                Indicated                      Inferred 
(Au g/t) 
               Tonnes      Au         Au       Tonnes     Au         Au 
                         (g/t)    ounces                (g/t)    ounces 

2           4,507,000    4.11    595,000    5,716,000   3.87    712,000
2.5         3,449,000    4.67    518,000    4,577,000   4.28    630,000
3           2,662,000    5.25    449,000    3,675,000   4.66    551,000
3.5         2,052,000    5.84    385,000    2,740,000   5.14    453,000
4           1,587,000    6.47    330,000    2,127,000   5.54    379,000

Notes: Values in this table are reported to illustrate the sensitivity 
of the block model to cut-off grade relative to the base-case 
resource estimate. The Barry resource estimate is based on a cut-off 
grade of 3.5 grams per tonne gold and values presented above and 
below the base case should not be interpreted as a mineral resource 
statement. Mineral resources are exclusive of material that has 
been mined.

 
                     MOROY MINERAL RESOURCE ESTIMATE
                   TABULATED AT VARIOUS CUT-OFF GRADES 
  
Cut-off                Indicated                      Inferred 
(Au g/t) 
               Tonnes      Au         Au       Tonnes     Au         Au 
                         (g/t)    ounces                (g/t)    ounces   

2           1,017,004    4.25    139,000      701,000   3.55     80,000
2.5           840,004    4.70    127,000      563,000   3.87     70,000
3             667,005    5.17    111,000      396,000   4.32     55,000
3.5           531,005    5.68     97,000      271,000   4.93     43,000
4             432,006    6.19     86,000      202,000   5.23     34,000

Notes: Values in this table are reported to illustrate the sensitivity 
of the block model to cut-off grade relative to the base-case 
resource estimate. The Moroy resource estimate is based on a cut-off 
grade of three grams per tonne gold and values presented above and 
below the base case should not be interpreted as a mineral resource 
statement. Mineral Resources are exclusive of material that 
has been mined.

Qualified persons

The mineral resource estimates presented in this news release were estimated by Dr. Allan Armitage, PhD, PGeo, and Olivier Vadnais-Leblanc, BSc, Geo, both of SGS Geological Services. Dr. Armitage and Mr. Vadnais-Leblanc are independent qualified persons as defined by NI 43-101.

Pascal Hamelin, Ing, PEng, vice-president, operations, for Bonterra Resources, is a qualified person under NI 43-101 and has reviewed and approved the contents of this release.

We seek Safe Harbor.