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Higher nickel and cobalt prices drive Sherritt’s strong first quarter results

Financials

Sherritt International Corporation 1

For immediate release

Higher nickel and cobalt prices drive Sherritt’s strong first quarter results

NOT FOR DISTRIBUTION TO U.S. NEWSWIRE SERVICES OR FOR DISSEMINATION IN THE U.S.

Toronto – May 11, 2022 – Sherritt International Corporation (“Sherritt”, the “Corporation”, the “Company”) (TSX: S), a world

leader in the mining and hydrometallurgical refining of nickel and cobalt from lateritic ores, today reported its financial results for

the three months ended March 31, 2022. All amounts are in Canadian currency unless otherwise noted.

“The combination of high realized prices for each of the commodities we produce, strong production at the Moa JV, and the

recovery of the Power business in the first quarte r generated some of Sherritt’s best financial metrics since 2014,” said Leon

Binedell, President and CEO of Sherritt International Corporation. “Most notably, we grew Adjusted EBITDA by 94% to $58.5

million, lowered NDCC at the Moa JV by 11% to US$3.42 per pound, and received $24.2 million in distributions from the Moa

JV.”

Mr. Binedell added, “We expect to sustain this momentum through the second quarter and beyond given prevailing nickel, cobalt

and fertilizer prices . Anticipated cash flow from operations and distributions from the Moa JV in 2022 underpin the balanced

approach we are taking to fund growth opportunities while exploring ways to de -leverage our balance sheet. This direction

provides us with a clear path to building shareholder value. Already, we have made considerable progress towards our goals

based on the amount of work on our expansion and debottlenecking projects completed in the first quarter at Moa and the Fort

Site.”

SELECTED Q1 2022 DEVELOPMENTS

 Advanced with project scoping, development of timelines and capital cost requirements for Sherritt’s growth strategy

aimed at increasing finished nickel and cobalt production by 15 to 20% over production in 2021, which should result in

an increase in annual nickel production of approximately 4,700 to 6,200 tonnes (100% basis) once all projects are

completed in 2024. Progress in Q1 2022 included continued construction of the slurry preparation plant, nea r

completion of a feasibility study for a leach plant sixth train at Moa , and the start of basic engineering on de -

bottlenecking projects at the Fort Site and the basic engineering on upgrading of the acid plant at Moa.

 Net earnings from continuing operations were $16.4 million, or $0.04 per share, compared to a net loss of $1.9 million,

or $nil per share, in Q1 2021.

 Adjusted EBITDA(1) was $58.5 million, Sherritt’s highest since Q3 2014. The improved Adjusted EBITDA was driven

by higher nickel, cobalt, and fertilizer market prices, improved operating performance, and ongoing efforts to reduce

costs, partly offset by $26.6 million of share-based compensation expense due to the impact of Sherritt’s 103% rise in

the value of its shares.

 Sherritt’s share of finished nickel and cobalt production at the Moa Joint Venture (Moa JV) were 3,875 tonnes and 446

tonnes, respectively. Despite a 5% increase in mixed s ulphides production at Moa compared to the same period last

year, finished production was impacted by delays and disruptions in railway transportation services from Halifax to the

refinery in Fort Saskatchewan, Alberta.

 Benefitting from increased by-product credits from higher cobalt and fertilizer prices, net direct cash cost (NDCC) (1) at

the Moa JV was US$3.42/lb, the lowest since Q4 2018. In spite of significantly higher input costs, including a 181%

increase in sulphur prices, 47% increase in natural gas prices and 35% increase in fuel oil prices, Sherritt’s Q1 2022

NDCC ranked it in the lowest cost quartile of all nickel producers according to annualized information tracked by Wood

Mackenzie.

 Received $24.2 million of its share of Moa JV distributions in Q1, including $8.1 million deferred from Q4 2021. Given

prevailing nickel and cobalt prices, planned spending on capital , including growth capital, working capital needs, and

other expected liquidity requirements, Sherritt anticipates distributions for FY2022 to be greater than the $35.9 million

(excluding re -directions from its Cuban partner, General Nickel C ompany S.A.) received in FY2021, and higher

distributions in the second half of 2022 compared to the first half of the year.

 The Power business produced 137 GWh of electricity, up 44% from the same period last year, and gener ated $8.2

million in free cash flow(1), up 193%. The improved performance was driven by the completion of maintenance activities

in 2021.

2022 First Quarter Report

Press Release

2 Sherritt International Corporation

 Consistent with its commitment to environmental, social and governance (ESG) matters and to ongoing Board renewal

named Maryse Bélanger as Deputy Chair and appointed Chih-Ting Lo, a decarbonization expert with extensive mining

experience, as a Director.

(1) Non-GAAP financial measures. For additional information see the Non-GAAP and other financial measures section of this press release.

DEVELOPMENTS SUBSEQUENT TO QUARTER END

 An assessment of the expansion capital costs indicated that costs are estimated to be at the upper end of the

US$20,000 to US$25,000 per tonne range of new nickel capacity disclosed previously. In light of a number of

uncertainties relating to geopolitical developments, supply chain disruptions, the spread of COVID-19, and inflationary

price pressures on construction materials, equipment, and labour costs, Sherritt will further evaluate its growth capital

spend estimates once greater certainty on global supply chains and consequential pricing is available and additiona l

engineering and design work is completed. In tandem with this review, Sherri tt and its Cuban partner will continue to

advance construction of the US$27 million (100% basis) slurry preparation plant, proceed with US$6 million (100%

basis) of engineering work and plant capacity testing needed to finalize the cost of the expansion project, and develop

a new life of mine plan for Moa. Sherritt expects to provide an update on the rollout and spending on capital related to

the expansion strategy with each of its quarterly results with full project approval expected in the second half of 2022.

 On May 2, Sherritt paid interest of $14.9 million on the 8.50% second lien secured notes and did not make any mandatory

redemptions as conditions pursuant to the provisions of the indenture agreement were not met.

Q1 2022 FINANCIAL HIGHLIGHTS

$ millions, except as otherwise noted, for the three months ended March 31 2022 2021 Change

Revenue $ 34.1 $ 21.9 56%

Combined revenue(1) 202.2 141.7 43%

Earnings from operations and joint venture 23.5 6.1 285%

Net earnings (loss) from continuing operations 16.4 (1.9) 963%

Net earnings (loss) 15.7 (5.6) 380%

Adjusted EBITDA(1) 58.5 30.2 94%

Net earnings (loss) from continuing operations ($ per share) (basic and diluted) 0.04 0.00 -

Cash provided (used) by continuing operations for operating activities 5.6 (3.0) 287%

Combined free cash flow(1) (1.7) 19.0 (109%)

Average exchange rate (CAD/US$) 1.266 1.266 N/A

(1) Non-GAAP financial measures. For additional information see the Non-GAAP and other financial measures section of this press release.

2022 2021

$ millions, as at March 31 December 31 Change

Cash and cash equivalents $ 145.5 $ 145.6 -

Loans and borrowings 449.9 444.5 1%

Cash and cash equivalents at March 31, 2022 were $145.5 million, unchanged from December 31, 2021.

During the quarter, Sherritt received $24.2 million in distributions from the Moa JV, including $8.1 million that was deferred from

Q4 2021. Distributions from the Moa JV are determined based on available cash in excess of liquidity re quirements, including

anticipated nickel and cobalt prices, planned capital spend, working capital needs, and other expected liquidity requirements.

Sherritt also received US$4.2 million ($5.3 million) in Cuban energy payments in Q1 2022. Total cash receipts were offset by

$18.6 million of cash used by continuing operations for operating activities, which included $5.7 million of share -based

compensation payments, and by capital expenditures totaling $4.9 million.

Sherritt International Corporation 3

Total overdue scheduled receiva bles at March 31, 2022 were US$153.5 million, down from US$156 million as at

December 31, 2021. Collections on overdue amounts from Sherritt’s Cuban energy partners continue to be adversely impacted

by Cuba’s reduced access to foreign currency as a result of ongoing U.S. sanctions and the global pandemic’s impact on tourism.

While Sherritt anticipates economic conditions in Cuba to improve in the remainder of 2022, it continues to anticipate variability

in the timing a nd the amount of energy payment s in the near term , and continues to work with its Cuban partners to ensure

timely receipt of energy payments.

Of the $145.5 million of cash and cash equivalents, $ 50.4 million was held in Canada, down from $64.2 million as at

December 31, 2021, and $81 million was held at Energas, up from $78.9 million as at December 31, 2021. The remaining

amounts were held in Cuba and other countries.

Adjusted net earnings (loss) from continuing operations(1)

2022 2021

For the three months ended March 31 $ millions $/share $ millions $/share

Net earnings (loss) from continuing operations $ 16.4 $ 0.04 $ (1.9) $ (0.01)

Adjusting items:

Sherritt - Unrealized foreign exchange gain - continuing operations (1.1) - (2.6) (0.01)

Corporate - Gain on repurchase of notes - - (1.3) -

Corporate - Unrealized (gain) loss on commodity put options (0.9) - 0.6 -

Corporate - Realized loss on commodity put options 0.9 - - -

Oil and Gas - Gain on disposal of property, plant and equipment (1.3) - - -

Oil and Gas and Power - ACL revaluation 0.3 - 1.6 -

Other(1) 0.5 - 1.8 0.01

Total adjustments, before tax $ (1.6) $ - $ 0.1 $ -

Tax adjustments (0.1) - (0.5) -

Adjusted net earnings (loss) from continuing operations $ 14.7 $ 0.04 $ (2.3) $ (0.01)

(1) A non-GAAP financial measure. For additional information see the Non-GAAP and other financial measures section of this press release.

(2) Other items primarily relate to losses (gains) in net finance expense.

METALS MARKET

Nickel

Nickel prices experienced extreme volatility in the first quarter of 2022, culminating in the unprecedented one-day price spike by

more than 250% to almost US$46/lb on March 8 that resulted in the suspension of trading on the London Metal Exchange (LME),

cancellation of all trades that day, and the deferral of all settled contracts. The price climb and trading suspension were triggered

by concerns over the disruption of nickel supply in the wake of Russia’s invasion of Ukraine and speculation of a short squeeze

against a major market participant.

When trading resumed on March 16, the LME imposed new trading limits but was unable to curb trading volatility. Through

March 25, trading was suspended regularly as price limits were breached. By March 31, trading had stabilized, and nickel prices

closed at US$15.15/lb, up 60% from the start of the quarter.

Since the start of Q2 2022, trading on the LME has been consistent and prices have averaged at US$14.70/lb through May 10.

It is anticipated that nickel prices will maintain their robustness through the end of 2022 based on forecasts provided by industry

analysts. The favourable price outlook is due to expected demand from European consumers seeking non-Russian nickel supply

because of its invasion of Ukraine.

Strong prices in Q1 were driven by strong consumer demand as reflected by the continued decrease in inventory levels. In Q1,

nickel inventory levels on the LME fell by 29% from 101,886 tonnes at th e start of the period to 72,570 tonnes on March 31.

Although inventory levels on the Shanghai Futures Exchange rose to 6,097 tonnes from 2,406 tonnes at the start of the quarter,

the closing amounts suggest a tight market.

Industry analysts, including Wood Mackenzie and S&P Global, have forecast continued strong demand and market tig htness

through to the end of 2022. LME nickel inventories have continued to decline in Q2, reaching 73,122 tonnes on May 10.

Near-term visibility of market fundamentals, including inventory levels, beyond 2022 is limited given the uncertainty caused by

a number of recent geopolitical and macroeconomic developments relating to Russia’s invasion of Ukraine and ongoing effects

of supply chain disruptions caused by COVID-19.

2022 First Quarter Report

Press Release

4 Sherritt International Corporation

The long-term outlook for nickel remains bullish on account of the strong demand expected from the stainless steel sector, the

largest market for nickel, and the rapidly growing electric vehicle battery market. Some market observers, such as Wood

Mackenzie, have forecast a prolonged nickel supply deficit beginning in 2026 due to strong demand from the electric vehicle

market and insufficient nickel production coming on stream in the near term.

Over the past year, multiple automakers and governments have announced plans for significant investments to expand electric

vehicle production capacity to mee t growing demand as well as more aggressive timelines to phase out the sale of internal

combustion engines. In 2021, more than 6.5 million plug-in electric vehicles were sold despite the global pandemic. Industry

observers estimate that the number of electric vehicles sold in 2022 will grow to 8.6 million units. CRU has forecast that electric

vehicles sales will grow to 17.4 million units by 2025, driving significant demand for finished nickel and cobalt.

As a result of its unique properties, high -nickel cathode formulations remain the dominant choice for long -range and high

performance electric vehicles manufactured by automakers with high purity, Class 1 nickel being an essential feedstock in the

battery supply chain. Sherritt is partic ularly well positi oned given its Class 1 production capabilities and the fact that Cuba

possesses the world’s fourth largest nickel reserves. The adoption of lithium iron phosphate (LFP) cathode battery chemistry,

which is less expensive than nickel-manganese-cobalt (NMC) cathode chemistry, but with lower energy density and less vehicle

range, may soften nickel demand from this segment of the market.

Cobalt

Sustaining an upward trend started in Q2 2021, cobalt prices continued their stea dy rise in Q1 2022, closing on March 31 at

US$39.35/lb, up 16% from US$33.78/lb at the start of the quarter, according to data collected by Fastmarkets MB.

Higher cobalt prices in Q1 2022 were driven mostly by increased buying from electric vehicle batter y manufacturers and

increased stockpiling by consumers as a result of concerns over supply disruptions caused by Russia’s invasion of Ukraine.

Russia was the world’s fifth largest cobalt producer in 2021. In addition, logistics concerns relating the transportation of cobalt

hydroxide from the Democratic Republic of Congo (DRC), the world’s largest supply market, continued to cause market

disruptions.

The visibility for cobalt prices in the near term is limited due to recent geopolitical and economic developments, including Russia’s

invasion of Ukraine, the impact of economic sanctions against Russia on the world’s economy, and the impact of logistics

disruptions in South Africa on the delivery of cobalt from the DRC.

Over the long term, the outlook for cobalt is particularly encouraging given the accelerated adoption of electric vehicles expected

in the coming years. Cobalt is a key component of rechargeable batteries providing energy stability. Similar to developments in

the nickel market, t he adoption of LFP cathode battery chemistry, a less expensive but inferior alternative to NMC cathode

chemistry, may soften cobalt demand.

CRU forecasts that demand for cobalt will grow by 12.7 % annually and reach 317,000 tonnes by 2026 with the EV sector

accounting for 50% of all cobalt demand.

Sherritt International Corporation 5

REVIEW OF OPERATIONS

Moa Joint Venture (50% interest) and Fort Site (100%)

$ millions, except as otherwise noted, for the three months ended March 31 2022 2021 Change

FINANCIAL HIGHLIGHTS

Revenue(1) $ 185.6 $ 126.3 47%

Cost of sales(1) 116.0 96.4 20%

Earnings from operations 67.7 27.8 144%

Adjusted EBITDA(2) 81.2 41.7 95%

CASH FLOW

Cash provided by continuing operations for operating activities $ 24.2 $ 23.5 3%

Free cash flow(2) 13.5 18.9 (29%)

PRODUCTION VOLUMES (tonnes)

Mixed Sulphides 4,126 3,931 5%

Finished Nickel 3,875 4,188 (7%)

Finished Cobalt 446 477 (6%)

Fertilizer 63,088 63,792 (1%)

NICKEL RECOVERY(3) (%) 89% 82% 9%

SALES VOLUMES (tonnes)

Finished Nickel 3,758 4,177 (10%)

Finished Cobalt 398 477 (17%)

Fertilizer 31,439 27,111 16%

AVERAGE-REFERENCE PRICES (US$ per pound)

Nickel(4) $ 11.97 $ 7.97 50%

Cobalt(5) 35.90 21.71 65%

AVERAGE REALIZED PRICE (CAD)(2)

Nickel ($ per pound) $ 14.85 $ 9.97 49%

Cobalt ($ per pound) 41.66 21.91 90%

Fertilizer ($ per tonne) 654.55 312.33 110%

UNIT OPERATING COSTS(2) (US$ per pound)

Nickel - net direct cash cost $ 3.42 $ 3.83 (11%)

SPENDING ON CAPITAL(2)

Sustaining $ 15.7 $ 4.6 241%

Expansion 0.3 - -

16.0 4.6 248%

(1) Revenue and Cost of sales of Moa Joint Venture and Fort Site is composed of revenue/cost of sales, respectively, recognized by the Moa Joint Venture at Sherritt’s

50% share, which is equity-accounted and included in share of earnings (loss) of Moa Joint Venture, net of tax, and revenue/cost of sales recognized by Fort Site,

which is included in consolidated revenue. For a breakdown of revenue between Moa Joint Venture and Fort Site see the Combined revenue section in the Non-

GAAP and other financial measures section of this press release.

(2) Non-GAAP financial measures. For additional information see the Non-GAAP and other financial measures section of this press release.

(3) The nickel recovery rate measures the amount of finished nickel that is produced compared to the original nickel content of the ore that was mined.

(4) The average nickel reference price for the three months ended March 31, 2022 was impacted by the suspension of nickel trading and disruption events on the LME

during the month of March 2022. The calculation of the average nickel reference price for the three months ended March 31, 2022 is based on LME guidance for

disruption events, which uses the next available price after a disruption event.

(5) Average standard grade cobalt published price per Fastmarkets MB.

Mixed sulphides production at the Moa JV in Q1 2022 was 4,126 tonnes, up 5% from the 3,931 tonnes produced in Q1 2021. The

variance was largely due to the impact of heavy rainfall on mining operations in Q1 2021 that resulted in lower ore quality when

compared to Q1 2022.

Sherritt’s share of finished nickel production in Q1 2022 totaled 3,875 tonnes, down 7% from the 4,188 tonnes produced in Q1

2021 while finished cobalt production for Q1 2022 was 446 tonnes, down 6% from the 477 tonnes produced in the same period

last year. Finished metals production in Q1 2022 was impacted by delays in receiving mixed sulphides from Moa to the refinery

due to railway transportation disruptions from Halifax to the refinery in Fort Saskatchewan, Alberta.

Second quarter production will be impacted by the planned annual maintenance shutdown of the refinery in Fort Saskatchewan.

This year’s shutdown is smaller in scale when compared to the prior year, which was a full-facility shutdown completed once every

six years. The 2022 shutdown is expected to last up to seven days, consistent in duration to prior years.

2022 First Quarter Report

Press Release

6 Sherritt International Corporation

Revenue in Q1 2022 increased by 47% to $185.6 million from $126.3 million last year. The revenue increase was largely

attributable to higher average-realized nickel, cobalt, and fertilizer prices(1), which were up 49%, 90%, and 110%, respectively,

from Q1 2021. Fertilizer sales volumes grew by 16% to 31,439 tonnes due to consumer stockpiling in advance of 2022 planting

season.

Mining, processing and refining (MPR) costs per pound of nickel sold in Q1 2022 were up 29% from Q1 2021. Consistent since

the start of the global pandemic in the first quarter of 2020, higher MPR costs in Q1 2022 were driven by the significant rise in

input costs, further compounded by Russia’s invasion of Ukraine. Most notably, input costs were marked by a 181% increase in

sulphur prices, 47% increase in natural gas prices and 35% increase in fuel oil prices when compared the same period last year.

Increased input costs were partly offset by lower purchased sulphuric acid consumption. Purchased sulphuric acid consumption

was required in the prior year to offset lower sulphuric acid production at Moa ahead of the planned sulphuric acid plant shutdown

in the second quarter of 2021.

Net direct cash cost (NDCC)(1) per pound of nickel sold decreased by 11% to US$3.42/lb in Q1 2022 from US$3.83/lb for Q1

2021. The improvement was principally due to higher cobalt and fertilizer by-product credits generated by higher average-realized

prices and the 16% increase in fertilizer sales volumes. NDCC for Q1 2022, which was the lowest since the fourth quarter of 2018,

ranked Sherritt in the lowest cost quartile of all nickel producers according to annualized information tracked by Wood Mackenzie.

Sustaining spending on capital in Q1 2022 was $15.7 million, up 241% from $4.6 million in Q1 2021. The year-over-year increase

was due primarily to higher planned spending, including the receipt of mining equipment at Moa.

With support from Sherritt Technologies, the Moa JV advanced with its expansion strategy aimed at growing annual nickel and

cobalt production by 15 to 20% from the combined 34,710 tonnes produced in FY2021, which should result in an increase in

annual nickel production by approximately 4,700 to 6,200 tonnes (100% basis), once all projects are completed in 2024, and

extending the life of mine at Moa beyond 2040.

Progress in Q1 2022 included:

 Continued to advance construction of the slurry preparation plant at Moa, which included substantial completion of a raw

ore rheological study and pipeline design, and commencement of civil works.

The project cost and schedule remain on track at an estimated cost of US$27 million (100% basis) with expected

completion in early 2024. In 2022, US$9 million (100% basis) in growth capital spend, of which US$5.2 million (100%

basis) has been committed, is expected for ordering of long lead materials and equipment, and civil and mechanical

construction. The project is expected to deliver a number of benefits, including reduced ore haulage, lower carbon

intensity from mining, and increased annual production of nickel and cobalt contained in mixed sulphides of

approximately 1,700 tonnes commencing in mid-2024.

 Near completion of a feasibility study for a leach plant sixth train at Moa.

 The start of engineering related to de-bottlenecking projects at the Fort Site and basic engineering for upgrading the acid

plant at Moa.

 Approval of US$6 million (100% basis) for basic engineering and plant capacity testing needed for the remaining

expansion projects prior to full project approval in the second half of the year. As part of this work, Sherritt will review

additional ESG considerations into the expansion plans as engineering advances.

 The engagement of external consultants to develop a new life of mine (LOM) plan based on economic cut-off grade

methodology and conduct a Quality Assurance/Quality Control review at Moa. A site visit was successfully completed

in February 2022 and detail work has commenced. The new LOM plan is expected to be completed and submitted to

the Oficina Nacional de Recursos Minerales, Cuba’s Natural Resources Ministry, for approval in the second half of the

year.

 Plans to release an updated NI 43-101 Technical Report before the end of year.

Sherritt International Corporation 7

An assessment of the expansion capital costs completed subsequent to quarter end indicated that costs are at the upper end of

the US$20,000 to US$25,000 per tonne range of new nickel capacity disclosed previously. In light of a number of uncertainties

relating to geopolitical developments, supply chain disruptions, the spread of COVID-19, and inflationary price pressures on

construction materials, equipment, and labour costs, Sherritt will further evaluate its growth capital spend estimates once greater

certainty on global supply chains and consequential pricing is available and additional engineering and design work is completed

to facilitate more accurate cost estimates.

In tandem, the Moa JV will continue to advance construction of the slurry preparation plant, and approved US$6 million (100%

basis) to fund the engineering work needed to reduce the risk around the cost of the expansion project, review additional ESG

considerations, and complete a new mine plan for Moa.

Spending on growth capital is expected to be self-funded by the Moa JV primarily using operating cash flows with the option to

utilize Sherritt’s revolving credit facility for up to C$30 million at the refinery in Fort Saskatchewan. Growth capital spending of

US$30 million (100% basis) is expected in 2022 for the slurry preparation plant, ordering of long lead items, and engineering work

related to finalizing costs of the remaining expansion projects.

Sherritt expects to provide an update on the rollout and spending on capital related to the expansion strategy with its second

quarter results.

(1) Non-GAAP financial measures. For additional information see the Non-GAAP and other financial measures section of this press release.

Power

$ millions (33⅓% basis), except as otherwise noted, for the three months ended March 31 2022 2021 Change

FINANCIAL HIGHLIGHTS

Revenue $ 9.0 $ 5.9 53%

Cost of sales 6.0 6.4 (6%)

Earnings (loss) from operations 0.5 (1.1) 145%

Adjusted EBITDA(1) 4.4 2.8 57%

CASH FLOW

Cash provided by continuing operations for operating activities $ 8.7 $ 2.8 211%

Free cash flow(1) 8.2 2.8 193%

PRODUCTION AND SALES

Electricity (GWh(2)) 137 95 44%

AVERAGE-REALIZED PRICE(1)

Electricity (per MWh(2)) $ 54.73 $ 54.81 -

UNIT OPERATING COSTS(1)

Electricity (per MWh) $ 15.70 $ 25.89 (39%)

SPENDING ON CAPITAL(1)

Sustaining $ 0.5 $ - -

(1) Non-GAAP financial measures. For additional information see the Non-GAAP and other financial measures section of this press release.

(2) Gigawatt hours (GWh), Megawatt hours (MWh).

Power production in Q1 2022 was 137 gigawatt hours (GWh) of electricity, up 44% from 95 GWh produced in the comparable

period of 2021. Production in Q1 2021 was lower due to lower capacity on account of deferred maintenance since completed.

Revenue in Q1 2022 totaled $9.0 million, up 53% from $5.9 million for the same quarter last year. Higher revenue was due to

increased power production.

Unit operating costs(1) in Q1 2022 were $15.70/MWh, down 39% from $25.89/MWh for Q1 2021. The year-over-year

improvement was driven by higher power production and sales volumes combined with lower spending on maintenance

activities.

The Power business unit had negligible spending on capital for the first quarter of 2022. Spending on capital at the Power

business in FY2022 is forecast at $5 million, which will be primarily earmarked towards maintenance activities.

2022 First Quarter Report

Press Release

8 Sherritt International Corporation

Sherritt continues to be in discussion with its Cuban partners to expedite payment of overdue receivables and increase

availability of natural gas needed to increase power production. Discussions also continued to extend the power generation

agreement with Energas, which is currently slated to expire in March 2023, and a requisite feasibility study was submitted to the

Cuban government in Q1 2022. Sherritt anticipates a final decision on extending the power generation agreement from Cuba’s

Executive Council before the end of the year.

Subsequent to quarter end, Sherritt received US$8 million ($10.3 million) of funding to facilitate foreign current payments for the

Energas operations.

(1) Non-GAAP financial measure. For additional information see the Non-GAAP and other financial measures section of this press release.

Technologies

Sherritt Technologies’ primary activities in Q1 2022 centred on supporting development of the Moa Joint Venture’s expansion

strategy, including efforts to support a change in mine planning whereby an economic cut-off grade will be used to upgrade

resources into reserves and significantly expand the life of mine at Moa beyond 2040.

Sherritt Technologies also continued to advance its commercialization strategies and technology development on its most

advanced and innovative technologies in Q1 2022, including:

 Dense slurry hydroprocessing - enhanced proprietary process to fully upgrade heavy oil, refining residues and bitumen.

A detailed product valuation of fully upgraded bitumen and an assessment of the utilization of this technology within

downstream refineries was completed. Sherritt Technologies also commenced an update to the front-end engineering

technical study for a revised commercial scale facility in order to satisfy any technical assessment requirements of

potential partners.

 Chimera - proprietary process for the treatment of copper concentrates with higher arsenic content. Technologies

completed work with external industry experts to further assess the applicability of this process and develop specific

opportunities within the complex copper concentrate market.

 Next-generation laterite processing - proprietary nickel laterite processing solution to make processing of lateritic ores

more economically viable and sustainable while enabling the supply of nickel and cobalt products from lateritic ores to

the battery sector. Unit operation pilot testing on the novel processing flowsheet commenced at an external facility and

additional piloting at Sherritt Technologies is planned for the second quarter of 2022.

Other activities included the continued support towards other Sherritt strategic initiatives and the evaluation of M&A and

investment opportunities.