Sigma Lithium Corporation reports developments tied to its lithium oxide concentrate production business and its Grota do Cirilo operation in Brazil. Company news commonly covers earnings releases, production guidance, sales of high-grade lithium oxide concentrate, commercialization of high-purity lithium fines, offtake agreements, and working-capital or bank-guarantee arrangements.
Updates also describe the Greentech Industrial Plant, including dry stacking, water reuse, zero use of toxic chemicals, and renewable electricity, along with capacity-expansion activity. Recurring themes include operating cadence, mine optimization, customer deliveries, and the role of Sigma Lithium's concentrate in the electric battery materials supply chain.
Sigma Lithium (SGML) reported third-quarter 2026 gross revenue of US$22.3 million, reflecting lower sales volumes during a temporary partial operational suspension. Revenue compared with US$51.0 million in the second quarter. Operating cash flow rose to US$24.2 million from US$1.6 million a year earlier, while adjusted EBITDA was negative US$6.7 million and operating loss was US$16.8 million.
Nine-month gross revenue rose 20% to US$115.4 million. Sigma priced US$125 million of convertible bonds, expected to close around November 16, 2026, to refinance liabilities including the Synergy prepayment. Pro forma short-term debt falls 85% to US$19 million, while net debt rises to US$145 million from US$105 million. Operations fully resumed October 5. The company reaffirmed its 330,000-tonne 2027 production target and plans capacity of 830,000 tonnes annually by 2028.
Sigma Lithium (SGML) will release its third-quarter 2026 earnings before the market opens on November 13, with a results call that morning.
The call is scheduled for 7:00 a.m. EST. Ahead of the results, CEO Ana Cabral discussed an upsized US$125 million convertible bond convertible into ASX-listed CDIs. The financing refinances maturing debt at a 7% fixed coupon and funds the opening of a lower-cost second mine. Her interview also covered operational recovery following the third quarter and production outlooks for the next 12 months and 2027.
The company plans to resume its Phase 2 expansion in 2027, designed to bring annual production capacity to 580,000 tonnes, and plans a Phase 3 expansion to increase capacity to 830,000 tonnes.
Sigma Lithium (SGML) priced a US$125 million senior unsecured convertible bond offering to refinance its secured debt with Synergy Capital. The offering was upsized by 25% from US$100 million. Sigma intends to repay Synergy in full, replacing its June 2027 maturity with bonds due approximately November 2031. The fixed 7.00% annual coupon replaces a floating rate currently at 11.45%.
The bonds convert into ASX-listed depositary interests, each representing one common share, at US$6.51, a 25% premium to the November 2 Nasdaq closing price. Conversion generally starts 12 months after closing. Holders may demand repayment at the end of year three, approximately November 2029. Closing is expected on or about November 16, 2026, subject to regulatory and stock exchange approvals, including TSX Venture Exchange approval. Synergy's security will be released upon repayment.
Sigma Lithium (SGML) previewed preliminary third-quarter 2026 results showing a 32% gross margin and announced a convertible-bond debt restructuring. Gross revenue fell 23% year over year to US$23 million, while production totaled 7,293 tonnes following operational suspensions. Production restarted early in the fourth quarter, reaching 9,000 tonnes through October 30.
The restructuring extended over 90% of debt maturities; short-term debt fell approximately 78% to US$28 million. Quarter-end total debt was US$125 million, down 23% year over year, and cash was US$10 million. Potential subsequent liquidity totals up to US$62 million, dependent on sales timing and lithium prices. China-delivered cash cost was US$518/t, down 5% year over year but up 15% sequentially. FY26 all-in sustaining cost guidance fell 6% to US$668/t. The company expects production of 240,000 tonnes over the next 12 months and 330,000 tonnes from Plant 1 in FY27.
Sigma Lithium (SGML) signed an agreement with Synergy Capital extending the maturity of its US$100 million senior secured debt. Repayment moves six months from December 2026 to June 2027. Interest remains SOFR, a benchmark rate, plus 6.95% annually, with similar covenants and default provisions.
Operations restarted October 5, 2026, following a court decision reinstating all environmental licenses. Production reached 7,090 tonnes of lithium oxide concentrate through October 22. Sigma Lithium maintains its target of 330,000 tonnes of annualized production by year-end 2027 and expects the extension to provide time to build operational cash flow. Total debt fell approximately 40% over two years to US$125 million as of October 21, 2026, following more than US$90 million in repayments since the second quarter of 2024.
Sigma Lithium (SGML) has resumed mining-industrial operations and reaffirmed its target for annualized lithium oxide concentrate production by year-end 2027. The company targets 330,000 tonnes and says existing South Pit mining capacity and processing capacity are sufficient, without additional capacity.
The processing plant demonstrated output above 950 tonnes per day after a fourth-quarter 2024 technological upgrade. A fines and ultra-fines reprocessing circuit was completed in the first quarter of 2025, and production surpassed 1,000 tonnes on several days.
Sigma Lithium plans to resume its Phase 2 expansion in 2027, designed to raise annual production capacity to 580,000 tonnes. A planned Phase 3 expansion would increase capacity further to 830,000 tonnes.
Sigma Lithium (SGML) temporarily suspended all mining and industrial production on September 30, while maintaining its fiscal 2027 production guidance. The company continues to expect 330,000 tonnes of lithium oxide concentrate in fiscal 2027, but will postpone its 12-month guidance of 240,000 tonnes by three months.
Commercial and recycling operations will continue, including sales of high-purity lithium fines and recycling of 100% of dry-stacked tailings. These activities generate cash flow, and Sigma Lithium expects to continue self-funding during the suspension. The company remains focused on expansion and plans to resume its Phase 2 expansion in 2027, designed to increase annual production capacity to 580,000 tonnes. A planned Phase 3 expansion would increase annual capacity further to 830,000 tonnes.
Sigma Lithium (SGML) showcased its lithium oxide production practices during UN-Climate Week, while its mining and industrial operations continue normally.
Company leaders spoke at forums during United Nations General Assembly High-Level Week. Sigma Lithium describes its production as using no potable drinking water, non-renewable power or highly toxic chemicals, and no mud tailings dams. It reports more than 1,100 days without a lost-time injury. The company also reports creating 19,000 jobs in Brazil’s Jequitinhonha Valley, with 80,000 family members dependent on those positions. At the fifth anniversary of its Nasdaq listing, Sigma Lithium said its market capitalization had increased “5x” since listing.
Sigma Lithium (SGML) announced that J. P. Morgan initiated equity research coverage with an "Overweight" rating on September 21, 2026.
J. P. Morgan's North America Metals & Mining team describes Sigma as an "operational de-risking plus brownfield growth" story, citing a modular expansion path where Phase 1 is operating at ~330 ktpa nameplate, Phase 2 is expected to add ~250 ktpa and Phase 3 another ~250 ktpa, targeting ~580 ktpa installed capacity by end-2027 and ~830 ktpa by end-2028. The bank highlights capex intensity of about US$400–430/t of incremental capacity versus ~US$1,100/t for peers, and places Sigma in the first quartile of the global cost curve. Sigma plans to deliver 240,000 tonnes of lithium oxide concentrate in the next 12 months and 330,000 tonnes in FY27, supported by an in-house mining model and a sustainability-focused operation using 100% renewable power, dry-stacked tailings and high water recycling.
Sigma Lithium (SGML) was selected by Nasdaq to ring the closing bell during United Nations New York Climate Week, marking five years since its Nasdaq listing and recognizing its sustainability leadership in critical minerals.
The company states it has become the largest producer of industrial‑mineral lithium oxide concentrate in the Americas while maintaining sustainability at the core of its operations. Sigma Lithium highlights its “Quintuple Zero Lithium” approach, including zero tailings dams, zero use of potable water, zero fatalities since 2012, zero use of highly toxic chemicals and 100% renewable electricity.
The company reports contributing to 19,000 job positions benefiting about 80,000 family members in Brazil’s Vale do Jequitinhonha and maintaining over 1,100 days without lost-time injuries. Social programs have supported more than 2,000 women entrepreneurs, built over 1,400 rainwater systems, ensured drinking water for all neighbouring communities and expanded education support for local children.