SIGMA Lithium Corporation announced that an updated mineral resource estimate for its Grota do Cirilo property has been completed by SGS Canada Inc., consisting of measured and indicated resources of 45.7 million tonnes and inferred resource of 6.6 million tonnes. This represents approximately 1,560,919 tonnes of Lithium Carbonate Equivalent (LCE) in the measured and indicated categories with a further 220,070 tonnes LCE in the inferred category. The estimates were prepared using a cut-off grade of 0.5% Li2O. The effective date of these estimates is January 6th, 2019. Sigma is currently preparing a new National Instrument 43-101 technical report with SGS Canada Inc., which will include the updated mineral resource estimates. During the second half of 2018, Sigma conducted a diamond drilling campaign of 30,000 meters to delineate four of Sigma's eleven priority mineral deposits, namely: Xuxa, Barreiro, Murial and Lavra do Meio. The successful results led Sigma to drill an additional ~6,000 meters in November and December, to a campaign total of ~36,000 meters.