Atico Reports Multiple High Grade Intercepts up to 20.70m of 5.76% Cu, 4.46 g/t Au and 11.50m of 8.16% Cu, 8.09 g/t Au and Continues to Extend the Ore Body at El Roble Mine in Colombia

VANCOUVER, British Columbia, April 04, 2024 (GLOBE NEWSWIRE) -- Atico Mining Corporation (TSX.V: ATY | OTCQX: ATCMF) (“Atico” or the “Company”) is pleased to announce positive results for the latest 49 drill holes being carried out in an area of historical mining to expand tonnage at the El Roble mine. In addition, the Company reports the results for sixteen diamond drill core holes (see first table below), which included 20.70m of 5.76% Cu, 4.46 g/t Au and 11.50m of 8.16% Cu, 8.09 g/t Au. Ore grade intercepts in another fourteen drill holes are also reported over narrower widths of approximately 1 to 2 meters in areas with limited drilling which highlights the possibility of further extending the ore body with additional drill programs.

“We continue to see very encouraging results with high grade intercepts from our mine vicinity drill campaign aimed at infilling known areas of mineralization while at the same time looking for extension of the main historic massive sulphide bodies at the El Roble deposit. This area was mined by operators previous to Atico obtaining control of the mine on November 22, 2013,” said Fernando E. Ganoza, CEO. “These strong assay results continue to increase confidence in our view that additional high-grade copper and gold mineralization remains both within the historically defined bodies and beyond the previously outlined mineralized shell and are open at depth and along strike. The drill campaign is planned to continue throughout 2024 while in parallel the Company is working on an updated resource estimate and will make this available shortly.”

Exploration Drilling Results Include:

Hole	From (m)	To (m)	Interval (m)	Cu (%)	Au (g/t)
ATD-0224	222.00	226.00	4.00	5.33	5.92
ATD-0225	30.40	34.90	4.50	5.24	6.77
ATD-0228	136.70	139.00	2.30	17.15	3.19
ATD-0229	25.50	37.90	12.40	4.45	1.55
ATD-0231	29.70	33.10	3.40	4.31	5.11
ATD-0235	27.50	35.40	7.90	5.07	4.18
ATD-0238	42.10	47.80	5.70	5.61	9.97
ATD-0240	104.80	114.10	9.30	6.09	5.51
ATD-0240	124.00	125.80	1.80	16.97	2.20
ATD-0249	46.15	52.30	6.15	4.57	3.04
ATD-0250	48.20	64.70	16.50	2.66	4.11
ATD-0251	53.90	57.40	3.50	0.59	12.95
ATD-0252	38.60	50.10	11.50	8.16	8.09
ATD-0253	43.40	45.65	2.25	6.36	10.39
ATD-0260	41.20	48.70	7.50	2.71	9.57
ATD-0261	59.10	66.20	7.10	4.16	8.53
ATD-0261	46.20	52.00	5.80	5.71	6.05
ATD-0262	58.15	78.85	20.70	5.76	4.46

^{True widths are dependent on uncertainties in the local strike and dip of the mineralization and are estimated to be between 90% and 95% of the drill intercept.}