PHASE 1 MINING PROGRESS
As of the date of this MD&A, the Company has achieved the following significant milestones:
| ● | Although the operation began in April 2023, the Company achieved full-scale mining in May 2023; |
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| ● | Implemented dust, vibration and noise control initiatives during the first quarter of 2023 (including application of polymers on roads and slopes, an automated spray system and road sheeting with coarse reject gravel generated from Greentech Plant production); |
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| ● | Completed the bridge over the Piaui “seasonal stream” that divides the Phase 1 north and south pits to improve transportation efficiency in April 2023; |
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| ● | Completed the seeding of vegetation cover for the initial waste pile slopes (where non-mineralized material will be dry stacked) in February 2023; |
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| ● | Established geotechnical parameters for piles and pits, as well as parameters for drilling and blasting using explosives; |
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| · | Phase 1 south pit pre-stripping completed in February 2023, as the Company plans to simultaneously source feedstock ore from both the north and south pits; |
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| SIGMA LITHIUM CORPORATIONMANAGEMENT’S DISCUSSION AND ANALYSISFOR THE THREE & TWELVE MONTHS ENDED DECEMBER 31, 2023(Expressed in thousands of Canadian dollars, except per share amounts or unless stated otherwise) |
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| ● | Run of mine pad was finalized in the first quarter of 2023; and |
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| ● | Completed the construction of mine haul roads linking the Phase 1 north pit and Phase 1 south pit to the Greentech Plant and waste pile locations. |
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| ● | A technical team with experienced professionals was formed to manage the Mining Planning stages; Geology and Quality Control; Operation and Infrastructure; and Geotechnics; |
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