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Lucara Announces Q 3 2023 Results ; Strong Revenue Supports Continued Development of the Underground Expansion

Financials

November 10, 2023

NEWS RELEASE

LUCARA ANNOUNCES Q 3 2023 RESULTS ; STRONG REVENUE SUPPORTS CONTINUED

DEVELOPMENT OF THE UNDERGROUND EXPANSION

VANCOUVER, November 10, 2023 /CNW/ (LUC – TSX, LUC – BSE, LUC – Nasdaq Stockholm)

Lucara Diamond Corp. (“Lucara” or the “Company”) today reports its results for the quarter ended September 30,

2023.

Q3 2023 HIGHLIGHTS

• Revenue for the quarter ended September 30, 2023 totalled $56.9 million, a 14% increase from Q3 2022.

• The Q3 2023 operating cash cost of $28.62 per tonne of ore processed (1) was well below the expected annual

operating cash cost range of $32.50 to $35.50 per tonne of ore processed.

• All key operational metrics were achieved against plan, with 0.9 million tonnes of ore and 1.0 million tonnes of

waste mined, 0.7 million tonnes of ore processed, and 98,311 carats recovered from direct milled ore.

• Cash flow generated from operating activities was $15.9 million.

• A 1,080 carat Type IIA white gem quality diamond was recovered from Karowe in August . The fourth +1,000

carat stone recovered from the Karowe Mine. A 692 carat Type IIA diamond was also recovered later that month.

• An investment of $20.3 million in the Karowe Underground Project (“UGP”) in Q3 2023 focused on sinking and

grouting programs in the ventilation and production shafts. Grouting progressed well in both shafts during the

quarter and sinking rates were significantly higher than in previous quarters.

• Changes were made to 2023 guidance for revenue, diamond sales, ore and waste tonnes mined, and total

operating cash costs per tonne processed.

William Lamb , President & CEO commented: “The third quarter results for the Company were very good when

considering market dynamics and the current state of the diamond sector. During this period of market weakness,

the Company is focusing on operational efficiency and key management positions, starting with the promotion of

Jennifer Harmer to VP Finance. Jennifer’s knowledge and understanding of the Company’s operations and projects

will be invaluable as we move f orward.” William further added, “ Lessons learned in previous quarters of

underground shaft sinking and development have been successfully converted into knowledge which is delivering

weekly sinking rate records. Good progress has been made with the Company’s Lenders on the Rebase Amendment.

A progress update will be provided before the end of the fourth quarter.”

REVIEW FOR THE QUARTER ENDED SEPTEMBER 30, 2023

• Operational highlights from the Karowe Mine for Q3 2023 included:

o Ore and waste mined of 0. 9 million tonnes ( Q3 2022: 0.9) and 1.0 million tonnes ( Q3 2022: 0. 5),

respectively.

o 0.7 million tonnes (Q3 2022: 0.7) of ore processed.

o A total of 98,311 carats recovered (Q3 2022: 78,879) at a recovered grade of 13.6 carats per hundred

tonnes (“cpht”) of direct milled ore (Q3 2022: 11.4 cpht).

(1) See “Non-IFRS Financial Performance Measures”

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▪ A total of 189 Specials were recovered, with six diamonds greater than 100 carats including three

diamonds greater than 300 carats in weight.

▪ Recovered Specials equated to 6.8% of the weight percentage of total recovered carats from ore

processed during Q3 2023 (Q3 2022 – 7.1%).

o The Karowe Mine has operated continuously for over two and a half years without a lost time injury.

• Financial highlights for the three months ended September 30, 2023, included:

o Revenues of $56.9 million (Q3 2022: $49.9 million) were achieved despite a weaker rough diamond

market. The strong performance reflects the weighting of Lucara’s revenue to larger goods where

pricing was observed to be stable. During Q3 2023, 16% of the carats processed were recovered from

the Centre Lobe and 84% were recovered from South Lobe material (Q3 2022: 100% South Lobe ore).

o Operating margins of 63% were achieved (Q3 2022: 48%). A strong operating margin continues to be

achieved through cost reduction initiatives, a strong U.S. dollar and despite price softness in the rough

diamond market.

o Karowe’s +10.8 carat production, sold through HB, accounted for 67% (Q3 2022: 58%) of total

revenues recognized in Q3 2023.

o Adjusted EBITDA (1) was $21.9 million (Q3 2022: $13.8 million), with the change attributed to an

increase in revenues, partially offset by higher administrative expenses in the current quarter.

o Net income was $10.5 million (Q3 2022: $1.8 million), resulting in earnings per share of $0.02 (Q3

2022: $0.00).

• During Q3 2023, the Company invested $20.3 million into the Karowe UGP:

o Sinking and grouting programs were the focus in both the ventilation and production shafts in Q3

2023.

o The ventilation shaft reached 268.8 metres below collar, completed two grouting events, and

advanced the shaft 55.7 metres in the reporting period. The ventilation shaft has completed sinking

through the water-bearing sandstone units.

o The production shaft reached 227 metres below collar, included completion of two grouting

campaigns and remedial grouting of previously dry sections of the shaft. By the end of September, the

shaft was sinking through the bottom portion of the water -bearing sandstones. An advance of 32.5

metres was achieved in Q3 2023.

• In September 2023, Lucara terminated the definitive sales agreement executed with HB in November 2022 (for

all +10.8 carat diamonds recovered from Karowe) due to HB’s material breach of its financial commitments.

• During Q3 2023, the Company announced management changes with the return of William Lamb as President

and CEO, replacing Eira Thomas. Zara Boldt, Chief Financial Officer and Corporate Secretary and Dr. John

Armstrong, VP, Technical Services, announced their departures with plans to step down in Q4 2023. Jennifer

Harmer has been promoted to VP, Finance, effective November 8, 2023.

• Cash position and liquidity at September 30, 2023:

o Cash and cash equivalents of $16.8 million.

o Cost overrun facility of $18.4 million.

o $90.0 million drawn on the $170.0 million Project Loan for the Karowe UGP, with no draws on the

facility during the third quarter.

(1) See “Non-IFRS Financial Performance Measures”

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o The outstanding balance on the working capital facility (“WCF”) was maintained at $35.0 million

through Q3 2023.

The Company is not permitted to make further draws from the WCF or the Project Loan until various amendments

to the terms of these loan agreements are negotiated with the Company’s Lenders (the “Rebase Amendments”). As

part of the Rebase Amendments, the Lenders have granted certain waivers and extensions to the Company.

The Company has near -term commitments under the Facilities, including the maturity date of the WCF and the

requirement to fund a cost overrun facility. Due to these near -term commitments, there is doubt regarding the

Company’s ability to meet its commitmen ts and discharge its obligations in the normal course of business. While

Management believes the Company will be able to resolve the noted items through its ongoing engagement with its

Lenders, there can be no assurance that those efforts will be successful. See further details in the section “Liquidity

and Capital Resources” and refer to Note 1 of the condensed interim consolidated financial statements for the three

and nine months ended September 30, 2023.

On October 31, 2023, the Company received a short-term extension of the maturity of the WCF and a deferral of the

requirement to place $52.9 million in a cost overrun facility (the “COF") to the earlier of the conclusion of discussions

with its Lenders or November 15, 2023 (the “Longstop Date”). An earlier extension granted by the Lenders on August

23, 2023, was due to expire on November 1, 2023.

DIAMOND MARKET

The longer-term outlook for natural diamond prices remains positive, anchored on improving fundamentals around

supply and demand as many of the world’s largest mines reach their natural end of life over the next decade. A slow

recovery of economic growth in China and a voluntary import ban on rough diamonds into India has muted the

recovery of rough diamond prices following a soft market in the first six months of 2023. Global economic concerns

combined with increasing geopolitical uncertainty have resulte d in a challenging market in Q3 2023 with demand

reduced and downward pressure on pricing, especially in the smaller size classes. With supply restricted by the

largest producers, it is possible that a floor in pricing will be established that will benefit the broader market,

including smaller producers, in late 2023.

Sales of lab-grown diamonds increased beginning in late 2022. Intense competition combined with improvements

in technology continue to drive prices of lab grown diamonds down. Signs are emerging of financial instability of

producers of lab-grown diamonds. This further differentiates this market segment from the natural diamond market

and highlights the unique nature and inherent rarity of natural diamonds. The longer-term market fundamentals for

natural diamonds remain unchanged and positive, pointing to st rong price growth over the next few years as

demand is expected to outstrip future supply, which is now declining globally.

2023 OUTLOOK

This section of the press release provides management's production and cost estimates for 202 3. These are

“forward-looking statements” and subject to the cautionary note regarding the risks associated with forward-looking

statements. Diamond revenue guidance does not include revenue related to the sale of exceptional stones (an

individual rough diamond which sells for more than $10 million), or the Sethunya.

Changes were made to the Company’s 2023 Guidance for revenue, diamond sales, ore and waste tonnes mined, and

total operating cash costs per tonne processed which was released in December 2022 as indicated below.

Revisions to diamond revenue guidance reflect changes to the sales mechanism for the rough diamonds larger than

10.8 carats in size following the termination of the Company’s agreement with HB , combined with global rough

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diamond market impacts. Revenue is expected to be lower than initial guidance as the Company looks at the timing

of sales of its goods greater than 10.8 carats in size.

Karowe Diamond Mine Initial

2023

Revised

2023

In millions of U.S. dollars unless otherwise noted Full Year Full Year

Diamond revenue (millions) $200 to $230 $160 to $190

Diamond sales (thousands of carats) 385 to 415 365 to 385

Diamonds recovered (thousands of carats) 395 to 425 395 to 405

Ore tonnes mined (millions) 1.9 to 2.3 2.4 to 2.6

Waste tonnes mined (millions) 2.2 to 2.8 2.8 to 3.1

Ore tonnes processed (millions) 2.6 to 2.9 2.6 to 2.9

Total operating cash costs(1) including waste mined(2) (per tonne

processed)

$32.50 to $35.50 $28.00 to $30.50

(1) Operating cash costs are a non-IFRS measure. See “Non-IFRS Financial Performance Measures”.

(2) Includes ore and waste mined cash costs of $ 6.00 to $ 6.50 (per tonne mined) and processing cash costs of $ 9.00 to $1 0.00 (per tonne

processed).

Tonnes mined have been adjusted to reflect the acceleration of mining in the open pit which has been implemented

to access high value ore from the south lobe earlier in the mine plan as well as to optimize cost s. Following the

expected completion of processing of the ex-pit material , i n Q1 2026, the plant will transition to processing

stockpiled material until the delivery of ore from the underground expansion project begins in Q1 2028.

In 2023, capital costs expectations for the underground expansion remain at $105 million. As a result of the rebase

announced in July 2023, a review of sustaining capital and project expenditures related to the open pit mining

operations commenced. Sustaining capital and project expenditures may be up to $16 million in 2023, previously up

to $20 million.

DIAMOND SALES

Karowe diamonds are sold through three separate and distinct sales channels: through the HB sales agreement, on

the Clara digital sales platform and through quarterly tenders.

HB SALES AGREEMENT FOR +10.8 CARAT DIAMOND PRODUCTION FROM KAROWE

Karowe’s large, high value diamonds have historically accounted for approximately 60% to 70% of Lucara’s annual

revenues. In September 2023, Lucara terminated the definitive sales agreement executed with HB Antwerp (“HB”)

in November 2022 (for all +10.8 carat diamonds recovered from Karowe) due to HB’s material breach of its financial

commitments. The rough diamonds delivered to HB prior to the termination of the agreement will continue to be

manufactured and sold as polis hed diamonds. The Company retains a contractual right to receive “top -up”

payments from polished diamond sales for goods delivered prior to the termination of the agreement. The Company

plans to sell its +10.8 carat production through its established sale s channels, subject to pre -approval from the

Government of the Republic of Botswana.

For the three months ended September 30, 2023, the Company recorded revenue of $38.4 million from the HB

agreement (inclusive of top-up payments of $0.9 million), as compared to revenue of $27.1 million (inclusive of top-

up payments of $9.0 million) for the three months ended September 30, 2022 . The third quarter saw several high

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value stones recognized through the HB sales agreement accounting for much of the 107% increase in initial revenue

of $37.5 million. The remaining increase in revenue was due to the 26% increase in carats sold through the HB

agreement versus the comparable quarter. The product mix delivered in Q3 2023 was predominately from the South

Lobe ore body, with some contribution from the Centre Lobe (Q3 2022 – 100% South Lobe ore).

A decrease in top-up payments in Q3 2023 versus the comparative quarter can be attributed primarily to the number

of high value diamonds delivered to HB in preceding quarters which were sold during the comparative period. Top-

up values will typically increase as the more valuable stones move through production and are sold. The lower top-

ups recognized in Q3 2023 reflect the value of the stones delivered earlier in the year, consistent with the change in

product mix during H1 2023.

Recovered Specials equated to 6.8% of the weight percentage of total recovered carats from ore processed during

Q3 2023, with 84% of carats recovered coming from the South Lobe and 16% recovered from the Centre Lobe (Q3

2022: 7.1%; 100% South Lobe ore). Na tural variability in the quality profile of the +10.8ct production in any

production period or fiscal quarter results in fluctuations in recorded revenue and associated top-ups. This result is

consistent with the resource model and expected.

The large stone diamond market fundamentals continued to support healthy prices from the multi -year highs

observed at the peak in Q1 2022, despite an overall softening of demand in the market.

CLARA SALES PLATFORM

During Q3 2023, the sales volume transacted was $4.4 million (Q3 2022: $8.3 million), as lower volumes and lower

valued goods were placed for sale (due to the shift in product mix from the Karowe Mine). Some sales are recognized

on a net revenue basis. A soft er market was observed; however, prices decreased in most size categories from Q3

2022. Price stability continues to be observed in stones between 5 to 10.8 carats in size.

QUARTERLY TENDER

A total of 106,148 carats were sold in the August 2023 tender, generating revenues of $14.1 million (Q3 2022 tender:

$14.5 million from the sale of 94,486 carats). Rough diamond prices began to soften in the third quarter of 2022

following a significant in crease that started in 2021. The Q3 2023 tender reflected a 16% decrease in the market

from the comparative quarter’s tender.

KAROWE UNDERGROUND EXPANSION UPDATE

The Karowe UGP is designed to access the highest value portion of the Karowe orebody, with initial underground

carat production predominantly from the highest value eastern magmatic/pyroclastic kimberlite (south)

(“EM/PK(S)”) unit. The underground expansion is expected to extend mine life to at least 2040 and is forecast to

contribute approximately $4 billion in additional revenues using conservative diamond price assumptions which are

un-escalated and exclude exceptional stone revenues.

On July 16, 2023, an update to the Karowe UGP schedule and budget was announced (Press Release). This update

was initiated in response to slower than planned ramp up to expected sinking rates, and, to account for time incurred

to date, as well as for anticipated future grouting programs. Grouting programs took longer than anticipated due to

a combination of high-water volumes in the sandstone lithologies between 870 and 752 metres above sea level in

depth (144 metres to 262 metres below the shaft collar) combined with technical challenges associated with the

transition to main sinking.

The updated schedule incorporates a 28% increase in the duration of construction, extending the anticipated

commencement of production from the underground from H2 2026 to H1 2028. The revised forecast of costs at

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completion is $683 million (including contingency), a 25% increase to the May 2022 estimated capital cost of $547

million. The increase of $136.0 million in estimated capital to reach project completion is predominantly related to

increased schedule duration and related labour costs (about 56% of the total), grouting costs (approximately 20% of

the total capital increase), with the balance of the increase attributable to Owner’s costs, procurement, and indirect

project costs.

During the three months ended September 30, 2023, a total of $ 20.3 million was spent on the Karowe UGP

development, primarily in relation to ongoing shaft sinking activities, including:

• Main sinking in the production and ventilation shafts:

o The ventilation shaft reached 268.8 metres below collar, with a planned final depth of 731 metres. The

shaft is currently 22 metres ahead of the July schedule update. The production shaft reached 227

metres below collar, with a planned final depth of 765 metres.

o In response to water inflows from the sandstones, cover grouting continued as a primary activity in

both shafts. Backwall grouting programs were completed in the production shaft and ventilation shaft

as remedial work in areas of the shaft that were previously dry.

o Civil works related to construction of the temporary and permanent bulk air cooler contractor started

in September and detailed engineering was completed for these units.

• Contract for fabrication of the permanent men and materials winder was signed during the quarter,

representing the last major component for the permanent winders.

• Mining engineering advanced with a focus on supporting shaft sinking, underground infrastructure engineering

and finalizing level plans.

• The impact of implementing a behavioural-based safety training program in Q4 2022 has been evident in 2023.

Year-to-date, the UGP achieved a nine -month period with no reportable incidents delivering a nine -month

rolling Total Recordable Injury Frequency Rate of zero.

The capital cost estimate for the underground expansion in 2023 is $105 million – see “2023 Outlook”. Activities

for the Karowe UGP in Q4 2023 are expected to include the following:

• Sinking within the ventilation and production shafts is expected to continue.

o Excavation of the 718 level station in the ventilation shaft and sinking to the 670 level station and start

of station development

o Planned grouting events to the base of the Mosolotane sandstone/mudstone transition are expected

to be completed early in Q4 2023 for the production shaft.

• Thereafter, further grouting is not anticipated to be required until sinking reaches the granite basement

lithologies in late 2024. Grouting in the granite lithologies is expected to be localized, rather than formational

in nature.

• Procurement of underground equipment, including dewatering pumps, underground crush and convey systems

and the permanent stage winder.

• Construction and commissioning of the temporary bulk air cooler and construction of the permanent of the bulk

air cooler system.

• Preparation of tender documents for a request for proposal for the underground lateral development work;

and,

• Continuation of detailed design and engineering of the underground mine infrastructure and layout.

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FINANCIAL HIGHLIGHTS – Q3 2023

Three months ended

September 30,

Nine months ended

September 30,

In millions of U.S. dollars, except carats or otherwise

noted

2023 2022 2023 2022

Revenues $ 56.9 $ 49.9 $ 140.8 $ 170.5

Operating expenses (21.3) (25.8) (56.3) (60.8)

Net income for the period 10.5 1.8 16.5 33.3

Earnings per share (basic and diluted) 0.02 0.00 0.04 0.07

Operating cash flow per share(1) 0.04 0.03 0.11 0.17

Cash on hand 16.8 34.8 16.8 34.8

Cost overrun facility (restricted cash) 18.4 - 18.4 -

Amounts drawn on working capital facility(2) 35.0 - 35.0 -

Amounts drawn on project finance facility 90.0 65.0 90.0 65.0

Karowe Revenue 56.2 46.5 136.1 163.7

Carats sold 111,673 99,301 267,764 245,763

QUARTERLY RESULTS OF OPERATIONS – KAROWE MINE, BOTSWANA

UNIT Q3-23 Q2-23 Q1-23 Q4-22 Q3-22

Sales

Revenues from the sale of Karowe diamonds US$M 56.2 38.6 41.3 40.1 46.5

Karowe carats sold Carats 111,673 72,717 83,374 81,264 99,301

Production

Tonnes mined (ore) Tonnes 869,188 682,636 541,400 484,705 920,410

Tonnes mined (waste) Tonnes 954,226 907,051 761,295 199,385 453,860

Tonnes processed Tonnes 724,640 720,345 700,678 690,946 693,398

Average grade processed(1) cpht (*) 13.6 12.6 12.8 12.5 11.4

Carats recovered(1) Carats 98,311 90,497 89,640 86,655 78,879

Costs

Operating cost per tonne of ore processed(2) US$ 28.62 27.97 26.65 26.20 29.33

Capital Expenditures

Sustaining capital expenditures US$M 3.2 2.4 0.8 9.9 4.0

Underground expansion project(3) US$M 20.3 22.5 30.5 22.3 23.9

(*) carats per hundred tonnes

(1) Average grade processed is from direct milling carats and excludes carats recovered from re-processing historic recovery

tailings from previous milling.

(2) Operating cost per tonne of ore processed is a non-IFRS measure. See “Use of Non-IFRS Performance Measures” below.

(3) Excludes qualifying borrowing cost capitalized in each quarter.

(1) Operating cash flow per share before working capital adjustments is a non-IFRS measure. See “Use of Non-IFRS Performance Measures”

below.

(2) Excludes amounts drawn from the Clara revolving credit facility.

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CONFERENCE CALL

The Company will host a conference call and webcast to discuss the results on Monday, November 13, 2023 at

9:00am Pacific, 12:00pm Eastern, 5:00pm UK, 6:00pm CET. To join the conference call please use the following link

https://emportal.ink/45LcfFu or the phone numbers listed below.

Conference ID:

42548403 / Lucara Diamond

Dial-In Numbers:

Toll-Free Participant Dial-In North America (+1) 888 390 0605

UK Toll free 0800 652 2435

Local Toronto (+1) 416 764 8609

Webcast:

To view the live webcast presentation, please log on using this direct link: https://app.webinar.net/X7Z2M2wLaxW

The presentation slideshow will also be available in PDF format for download from the Lucara website ( Link to

presentation).

Conference Replay:

A replay of the telephone conference will be available two hours after the completion of the call until November 20,

2023. The pass code for the replay is: 548403 #

Replay number (Toll Free North America) (+1) 888 390 0541

Replay number (Local) (+1) 416 764 8677

On behalf of the Board,

William Lamb

President and Chief Executive Officer

Follow Lucara Diamond on Facebook, Instagram, and LinkedIn

For further information, please contact:

Hannah Reynish Investor Relations & Communications

+1 604 674 0272| [email protected]

Sweden Robert Eriksson, Investor Relations & Public Relations

+46 701 112615 | [email protected]

UK Public Relations Charles Vivian / Jos Simson, Tavistock

+44 778 855 4035 | [email protected]

ABOUT LUCARA

Lucara is a leading independent producer of large exceptional quality Type IIa diamonds from its 100% owned

Karowe Diamond Mine in Botswana. The Karowe Mine has been in production since 2012 and is the focus of the

Company’s operations and development activities. Clara Diamond Solutions Limited Partnership (“Clara”), a wholly-

owned subsidiary of Lucara, has developed a secure, digital sales platform that uses proprietary analytics together

with cloud and blockchain technologies to modernize the existing dia mond supply chain, driving efficiencies,

unlocking value and ensuring diamond provenance from mine to finger. Lucara has an experienced board and

management team with extensive diamond development and operations expertise. Lucara and its subsidiaries

operate transparently and in accordance with international best practices in the areas of sustainability, health and