SUGAR ZONE MINE

INCREASE IN PRODUCTION FROM 25,6000 OZ IN 2020 AISC $1,550 TO 60,000 OZ

The Sugar Zone Mine entered commercial production in 2019 and has an anticipated mine life of approximately 13 years at current production levels. The mine is currently producing from the Sugar Zone North and South areas. Development is underway to the Middle Zone, which will open up a whole new mining area, expected by mid-2021.

### Low-cost Expansion: $21 million in expansion capital

### 58% Increase in Annual Gold Production

### Attractive cost profile: AISC expected to decline

### 166% increase in Mine Free Cash Flow

HIGHLIGHTS OF 1,200 TPD FEASIBILITY STUDY INCLUDE:

• Low-cost expansion: $21 million in expansion capital to grow throughput from 800 tpd to 1,200 tpd in Q1 2023.
• 58% increase in annual gold production: Increased throughput is expected to drive gold production to 102,000 ounces by 2023 and deliver sustainable annual gold production of 98,700 ounces from 2023 to 2027.
• Attractive cost profile: AISC¹ is expected to decline to an average of US$1,025 per ounce from 2023 to 2027.
• 166% increase in Mine Free Cash Flow²: Annual Mine Free Cash Flow is expected to increase from $36 million in 2021 to $96 million by 2023.
• Short expansion timeframe: Consistent production improvements are expected through to 2023 when 1,200 tpd steady-state is achieved.
• After-tax IRR3 of 89%: Reflects significant incremental cash flow improvement over 800 tpd scenario
• NPV5% of $417 million (pre-tax) and $332 million (post-tax): Adds considerable value to Harte Gold’s net asset value.

1. AISC is a non-IFRS measure and reported at the project level. Excludes corporate G&A.
2. Defined as operating cash flow net of capital, tax and First Nations NPI, excludes corporate and hedge payments.
3. IRR calculated on a differential project level, after-tax cash flow between 1,200 tpd expansion and operating at a steady state of 800 tpd.

• Location
• Overview
• Mineral Resource Estimate
• Geology and Mineralization
• Mining and Processing

ABOUT SUGAR ZONE MINE

• The Sugar Zone Property is located in northern Ontario, approximately 68 km east of the Hemlo area gold mines, 30 km north of White River which is on the Trans-Canada Highway 17.

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Reserves and Resources

The Mineral Resource Estimate was derived from applying Au grade cut-off values to the block model and reporting the resulting tonnes and grade for potentially underground mineable areas. Based on a gold price of US$1,250/oz, process recovery of 96%, an exchange rate of US$0.80=CAD$1.00, a 3.0 g/t Au cut-off grade(1-5) was utilized.

MINERAL RESOURCE ESTIMATE

PROBABLE MINERAL RESERVE AS OF DECEMBER 31, 2020

The Mineral Resource estimate presented in the following table is dated September 30, 2020, and the Mineral Resource ounces are inclusive of Mineral Reserve ounces. The Mineral Resource estimate was prepared using Leapfrog software for the wireframing and grade estimation. The wireframes were created in Leapfrog Geo using the vein modeling tool, guided by the geological interpretation corresponding to each domain. The grade was estimated by ordinary kriging or inverse distance squared using a 2D estimation approach. The Mineral Resource estimate does not include any external dilution.

Notes to the Mineral Resource estimate:

• The stated Mineral Resources comply with the requirements of National Instrument 43-101 – Standards of Disclosure for Mineral Projects ("NI 43-101") and are classified in accordance with the Canadian Institute of Mining, Metallurgy and Petroleum's "CIM Definition Standards – For Mineral Resources and Mineral Reserves" (the “CIM Definition Standards”).
• Mineral Resources, which are not Mineral Reserves, do not have demonstrated economic viability.
• The estimate of Mineral Resources may be materially affected by environmental, permitting, legal, title, taxation, socio-political, marketing, or other relevant issues.
• The Inferred Mineral Resource in this estimate has a lower level of confidence than that applied to an Indicated Mineral Resource and must not be converted to a Mineral Reserve. It is reasonably expected that the majority of the Inferred Mineral Resource could be upgraded to an Indicated Mineral Resource with continued exploration.
• The Mineral Resource estimate was prepared by Mr. Vincent Cardin-Tremblay (P.Geo), former VP Geological Services for the Company. Mr. Cardin-Tremblay is a QP as defined by NI 43-101.
• Mineral Resources have been estimated as of September 30, 2020 using a gold price assumption of US$1,600 per ounce Au.
• A resource cut-off grade of 3.0 g/t Au has been estimated based on operating cost projections and applicable metallurgical recovery. The cut-off grade was used in combination with a minimum mining width factor of 1.8m to define the resource.
• Numbers may not add due to rounding.

Notes to the Mineral Reserve estimate:

• The stated Mineral Reserves comply with the requirements of NI 43-101 and are classified in accordance with the CIM Definition Standards. Mineral Reserve estimates reflect the Company's reasonable expectation that all necessary permits and approvals will be obtained and maintained.
• Mineral Reserves are the economic portion of the Indicated Mineral Resources. Mineral Reserve estimates include mining dilution at grades assumed to be zero.
• The 2020 Mineral Reserve estimate was prepared under the supervision of Mr. Chris McCann (P.Eng), Director of Technical Services for the Company. Mr. McCann is a QP as defined by NI 43-101.
• The Mineral Reserves were estimated as of December 31, 2020 using a gold price assumption of US$1,450 per ounce Au.
• A mining cut-off grade of 5.0 g/t Au has been estimated based on operating cost projections, sustaining capital development cost, mining dilution and recovery, royalty payment requirements and applicable metallurgical recovery.
• Numbers may not add due to rounding.