SONORO.- BOTTLE ROLL TESTS OF CERRO CALICHE MINERALIZATION RETURN RECOVERIES OF 80.3% FOR GOLD

20210303-Sonoro-

VANCOUVER, Canada, March 3, 2021 – Sonoro Gold Corp. (TSXV: SGO | OTCQB: SMOFF | FRA: 23SP) “Sonoro” or the “Company” is pleased to report the bottle roll results from the Company’s Cerro Caliche property in Sonora, Mexico.  The samples tested were from four specific mineralized zones:  Japoneses, Cuervos, El Colorado/Cabeza Blanca and Buena Suerte, and included associated composites. The testing was conducted at McClelland Laboratories, Inc. in Sparks, Nevada as part of a detailed scope of work consisting of 43 bottle roll tests over 96-hours at a coarse sizing of 80% – 1.7 mm feed size.  Subsequent leach recoveries averaged 80.3% for gold and 27.2% for silver.  Sodium cyanide consumption rates averaged 0.20 kg/t and lime addition averaged 2.1 kg/t for the bottle roll tests at varying feed grades. These recoveries are similar in all structures and domains while cyanide consumption, which averaged 0.2-0.3 kg/t, together with the amount of lime required for pH control (approximately 2 kg/t) are well within acceptable levels.

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