AUMN Golden Minerals Company

Golden Minerals Company (NYSE American and TSX: AUMN) (“Golden Minerals”, “Golden” or “the Company”) is pleased to announce it has acquired the Navegantes project in southern Chihuahua state, Mexico, where recent surface and underground sampling have returned high-grade silver values from a series of epithermal silver-base metal veins outcropping on the property.

Navegantes Project Location Navegantes Nearby Major Mines and Development Projects Navegantes Sample Locations and Silver Assays

Navegantes sampling highlights:

• 1 meter (“m”) assaying 1,585.5 g/t Ag
• 1.45m assaying 759.2 g/t Ag
• 1.1m assaying 638.9 g/t Ag
• 2.1m assaying 472 g/t Ag

The project consists of six concessions totaling 521 hectares and is located approximately 60km northwest of the San Francisco del Oro-Santa Barbara District where the company’s Santa Maria project is located. Initial sampling and mapping have identified extensive zones of oxidized and leached epithermal quartz veining over an 800m strike length that has delivered high silver grades.

A photo (Figure 1: Navegantes project location) accompanying this announcement is available at: http://www.globenewswire.com/NewsRoom/AttachmentNg/d3fa796c-98b8-4e1a-aade-09ad5f4bd773

Figure 1, “Navegantes project location”, may also be viewed here:  http://www.goldenminerals.com/drill_testing.php

Mr. Warren Rehn, President and Chief Executive Officer of Golden Minerals, said; “Navegantes is an exciting prospect that hasn’t been systematically explored even though it is located in an area of several modern major discoveries. We were pleasantly surprised by the high-grade surface silver assays from heavily weathered and leached veins outcropping on the surface.

“This project was identified by our generative exploration team that is searching for under-explored projects in central Mexico to allow the company to add high-quality, early-stage projects that can be advanced quickly to create value for our shareholders.”

A photo (Figure 2: Major mines and development projects close to the Navegantes project) accompanying this announcement is available at: http://www.globenewswire.com/NewsRoom/AttachmentNg/f3575a85-1f34-45cb-b60b-49335b05d9e4

Figure 2, “Major mines and development projects close to the Navegantes project”, may also be viewed  here: http://www.goldenminerals.com/drill_testing.php

The mineralization occurs as iron oxides, within quartz veins that range up to 2m in width and are exposed over strike lengths in excess of 800m. Based on historic mines and prospects in the San Francisco del Oro-Santa Barbara and Hidalgo de Parral districts, we believe there exists excellent potential to define significant silver mineralization at depth.

Golden Minerals collected 103 surface and underground chip channel and grab samples from vein exposures, mine workings and mine dumps. Results from this initial sampling program are summarized in Table 1, with surface sample results shown in Figure 3.

Table 1: Results from the 2018 Navegantes sampling program
Channel ID	Vein	Width (m)	Ag (g/t)	Pb (ppm)	Zn (ppm)
NAV_U_01	San Pedro	1.5	14	74	339
NAV_U_02	San Pedro	1.3	6	33	221
NAV_U_03	San Pedro	1.2	8	25	145
NAV_U_04	San Pedro	2.5	73	28	157
NAV_U_05	San Pedro	0.8	519	1739	328
NAV_U_06	San Pedro	1.1	352	1055	1295
NAV_U_07	San Pedro	1.2	178	113	706
NAV_U_08	San Pedro	1.0	1586	70	175
Inc.	San Pedro	0.7	1965	69	189
NAV_U_09	San Pedro	1.5	759	69	79
Inc.	San Pedro	0.4	1600	72	79
Nav_01	San Pedro	1.3	85	15804	1055
Nav_02	San Pedro	2.2	16	125	133
Nav_03	Navegantes	2.1	472	22	199
Inc.	Navegantes	0.9	608	15	200
Nav_04	Navegantes	2.0	201	837	421
Inc.	Navegantes	1.0	268	655	186
Nav_05	Navegantes	1.5	37	103	95
Nav_06	Navegantes	1.4	261	28	218
Inc.	Navegantes	0.6	406	33	261
Nav_07	Navegantes	1.4	48	257	223
Nav_08	Navegantes	1.5	73	851	179
Nav_09	Navegantes	1.7	14	325	384
Nav_10	San Pedro	1.1	639	31	104
Inc.	San Pedro	0.6	1135	43	165
Nav-16	Dump Sample		197	7690	687
Nav-17	Dump Sample		205	5270	522
Nav-18	Dump Sample		438	4030	458
Nav-19	Dump Sample		606	2160	355
Nav-20	Dump Sample		951	4870	446
Nav-21	Dump Sample		475	469	251
Nav-31	Dump Sample		358	22	209
Nav-52	Dump Sample		285	2180	637
Nav-53	Dump Sample		211	944	386
Nav-51	New vein	0.3	134	1920	165
Nav-61	New vein	0.9	268	28	147
SP-1	San Pedro	0.9	278	26	159

Complete results are available on the Golden Minerals website at http://goldenminerals.com/drill_testing.php, as are  more detailed surface maps.

A photo (Figure 3: Navegantes sample locations and silver assays) accompanying this announcement is available at http://www.globenewswire.com/NewsRoom/AttachmentNg/95c1b611-aa49-42c2-9526-78a49e4ab7ed

Figure 3, “Navegantes sample locations and silver assays”, may also be viewed here:  http://www.goldenminerals.com/drill_testing.php

Next Steps

Golden is currently conducting additional mapping and sampling on the property to identify prospective targets for follow-up testing by trenching and/or drilling.

About Navegantes

Golden Minerals holds an option to purchase six concessions totaling 521 hectares by paying $0.4M over three years.  The property is located in southwestern Chihuahua state, in northern Mexico. The project covers two vein systems (Navegantes and San Pedro-San Francisco) as well as a number of smaller subsidiary veins. The property is located 68km northwest of Grupo Mexico’s Santa Barbara operation (6,000 tonnes per day) and 63km northwest of Frisco’s San Francisco Mine (4,000 tonnes per day). The project is also 61km south of Sunshine Mining’s Los Gatos project. The Navegantes property covers an underexplored epithermal precious silver-base metal district that shows similar mineralization to the adjacent Parral Mining District. The Company, through systematic exploration, hopes to identify significant high-grade mineralization. 

Review by Qualified Person and Quality Control

The technical contents of this press release have been reviewed by Warren M. Rehn, M.Sc., a Qualified Person for the purposes of Canadian National Instrument 43‐101. Mr. Rehn has over 33 years of mineral exploration experience and is a QP member of the Mining and Metallurgical Society of America.

To ensure reliable sample results, Golden Minerals uses a quality assurance/quality control program that monitors the chain‐of‐custody of samples and includes the insertion of blanks, duplicates and reference standards in each batch of samples. Core is photographed and sawn in half with one half retained in a secured facility for verification purposes. Sample preparation (crushing and pulverizing) is performed at an independent ISO 9001:2001 certified laboratory in Chihuahua or Zacatecas, Mexico. Prepared samples are direct‐shipped to an ISO 9001:2001 certified laboratory in Canada.

About Golden Minerals

Golden Minerals is a Delaware corporation based in Golden, Colorado. The Company is primarily focused on advancing its El Quevar silver property in Argentina and on acquiring and advancing mining properties in Mexico with emphasis on areas near its Velardeña processing plants.

Forward‐Looking Statements

This press release contains forward‐looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended and Section 21E of the Securities Exchange Act of 1934, as amended, and applicable Canadian securities legislation, including statements relating to the Company’s plans for systematic exploration of the Navegantes claims and the possibility of identifying significant high-grade mineralization. These statements are subject to risks and uncertainties, including changes in interpretations of geological, geostatistical, metallurgical, mining or processing information and interpretations of the information resulting from future exploration, analysis or mining and processing experience, new information from exploration or analysis, unexpected variations in mineral grades, types and metallurgy, fluctuations in silver metal prices, increases in costs and declines in general economic conditions, and changes in political conditions, in tax, royalty, environmental and other laws in Mexico, and financial market conditions. Golden Minerals assumes no obligation to update this information. Additional risks relating to Golden Minerals may be found in the periodic and current reports filed with the Securities and Exchange Commission by Golden Minerals, including the Company’s Annual Report on Form 10‐K for the year ended December 31, 2017.

Karen WinklerDirector of Investor Relations(303) 764-9170Investor.relations@goldenminerals.comSOURCE: Golden Minerals Company