Sigma Lithium Provides Update on Pre-Construction, Project Financing and Participation at UN Climate Change Conference COP25

Speaks About “Green Lithium”at the World Climate Summit during UN Climate Conference COP25
Signs a CAD 6.6 million Revolving Credit Facility with A10 Investimentos to Meet
ESG Goals and Further Advance PFS at Second Deposit BarreiroVANCOUVER, British Columbia, Dec. 10, 2019 (GLOBE NEWSWIRE) — Sigma Lithium Resources Corporation (TSXV: SGMA) (OTCQB: SGMLF) (“Sigma” or the “Company“) is pleased to provide an update on its operational and corporate activities, the status of its ongoing efforts to further advance the Grota do Cirilo Project towards construction and to meet its sustainable development ESG goals. This update follows the filing, on November 29, of its financial statements (“3Q Statements”) and Management Discussion and Analysis (the “3Q MD&A“) of its financial and operating results for the three and nine months ended September 30, 2019.OPERATING AND CORPORATE HIGHLIGHTS: SUBSEQUENT EVENTS TO 3Q 19Sigma’s Chief Strategy Officer Speaks at World Climate Summit during the United Nations Climate Change Conference COP 25 in Madrid about “Leadership in Responsible Mining”.Sigma Lithium is pleased to announce today that Ana Cabral-Gardner, Chief Strategy Officer presented at the World Climate Summit during the United Nations Climate Change Conference COP 25 on the panel covering the theme of “Leadership in responsible mining – mitigating the impacts of resource extraction” on November 8, in Madrid.She discussed the case study of Sigma as an ESG “green lithium” company and the role played by Sigma’s investors in providing the capital and the leadership to drive implementation of environmental and social best practices. Ms Cabral-Gardner highlighted how these key issues are part of a broader movement spearheaded by ethical and ESG-focused investors driving sweeping changes in practices across the mining industry as a whole.Excerpts from Ms Cabral-Gardner’s speech include:“In battery materials, we start with a consumer who is very knowledgeable about carbon emissions and this is why he is buying an electric car to begin with. That consumer is demanding carbon neutrality, carbon consciousness and sustainability, throughout the value chain…when one thinks about the cathodes… it will be counterintuitive to buy a car to decarbonize the environment if upstream you are burning coal to produce lithium, nickel or using child labor to produce cobalt.”“In this [EV] industry a paradigm is being broken [from the ICE days], whereby now ‘upstream matters’ and therefore, upstream practices matter too. So ultimately, in the very last step of the value chain…the OEM hears this [message from the consumer], because they are tuned into what their customer wants. So there is a “push for provenance” in battery materials, and at Sigma we sense that in the contracts [for lithium offtakes]. Sigma is in binding offtake discussions with some of the EV industry leading participants in great part because of the [differentiation] of the “green lithium’ Sigma is 100% hydro, it is 100% environmentally conformed to dry stacking and other best practices. So even though the green price differentiation hasn’t yet happened in metals and it isn’t expected, it has been translated into displacement value: you get the best contracts, you get to sell the big volumes…”“Sigma produces environmentally sustainable high-quality high-grade lithium concentrate from its pilot plant on site in Brazil… and the Company has some of the world’s largest and richest deposits of spodumene ore… and we set out to develop it since the very beginning six years ago as an ESG green mining case study, pioneering amongst lithium companies … and we did that by focusing 15% of the capex towards always keeping up with best environmental practices [management and rehabilitation] and obviously focusing on the way [electric] power was sourced to beneficiate the material [lithium].”“Four examples of actions include dry-stacking tailings management from inception at the pilot plant to investing in water recirculation equipment that would lead the company to recycle 90% of the water…so there is an enormous focus on water efficiency. And then there is energy efficiency, 100% of the energy is green, power is sourced from hydro.”“More importantly there is the “S” in ESG, the Company works in a region with the second-lowest IDH [index of human development] in Brazil and one of the lowest in the world… So [Sigma] is transformational as we become the largest investor by a factor of 20x in the region with massive social impact. This has been our mission and just demonstrates that with the right purpose and the right will we can become a great example even though we are a relatively small mining company on a small budget.But why? Because being in battery materials… the purpose of that value chain is to decarbonize at the “mobility-end” of the value chain. So if we do not behave accordingly by being 100% green and by powering the energy with 100% green energy and enforcing those practices all along, we would not be a sustainable member of that [EV] value chain.Signs a CAD6.6 million Revolving Credit Facility with A10 Investimentos to Meet ESG Goals and Further Advance Second Deposit into Pre-Feasibility.A10 Investimentos and its affiliates (“A10 Group”) continues to support Sigma in meeting its development and construction timetable as well as strategic environmental and social ESG goals. On November 29, A10 Group provided Sigma with a CAD6.6 million (USD5 million) senior unsecured revolving credit facility to complete the pre-feasibility study for the Barreiro deposit, to meet the current social-economic obligations under the environmental licensing as well as for general corporate purposes. The facility bears interest at 11% per annum (calculated in US Dollars from the day funds are drawn) and it has a one-year term, which is the maturity day for all funds drawn, if any. Each disbursement under the facility is subject to A10 Group’s approval.This credit facility is a related party transaction for Sigma for purposes of Multilateral Instrument 61-101 (“MI 61-101”) and Policy 5.9 of the TSX Venture Exchange (which incorporates by reference MI 61-101) because Ana Cabral-Gardner, Marcelo Paiva and Anna Hartley are officers and/or directors of Sigma as well as principals of the A10 Group. In accordance with applicable law, the credit facility agreement was reviewed and unanimously approved by the directors of Sigma other than those related to the A10 Group. The credit facility, which is not convertible into securities of Sigma, is exempt from the formal valuation and minority approval requirements under MI 61-101 because the fair market value of the transaction is below 25% of Sigma’s market capitalization. It is also exempt from the minority approval requirements under MI 61-101 because the facility is on reasonable commercial terms and is not convertible into securities of SigmaSelection of Global Engineering Contractor for Construction of Plant on a ‘Lump Sum Turnkey Basis’ Capped by a Gross Maximum Price