Prime Mining Corp. reporting expansion drill results from its ongoing 60,000 metre (?m?) 2023 drill program at the Company's Los Reyes Project (the ?Project?), located in Sinaloa State, Mexico. The exploration results reported in this release are from Central, one of three main zones hosting the gold-silver mineral resource estimate (?MRE?) at Los Reyes Project.

Today's results, along with previous holes in the area, extend the high-grade gold-equivalent shell approximately 250 m southeast along strike from the Noche Buena pit bottom, as well as intersecting new steeply dipping mineralization between the Noche Buena and San Miguel East pit areas. As with results previously reported from the Z-T and Guadalupe Areas, drilling at Central is intended to identify gold-silver mineralization for potential resource expansion beyond the Company's current MRE. The 2023 Technical Report outlining the MRE can be found on the Company's website at arplus.ca, under the Company's Issuer Profile.

Expansion Target Highlights Central Area - Noche Buena: The Company is reporting 10 core holes at the Noche Buena target. Highlights include: · 4.49 grams per tonne (?gpt?) gold-equivalent (?AuEq?) (1.48 gpt Au and 232.6 gpt Ag) over 5.0 metres (?m?) estimated true width (?etw?) in hole 23NB-51, including: 8.00 gpt AuEq (2.7 gpt Au and 409.4 gpt Ag) over 2.6 m etw; and 3.51 gpt AuEq (3.36 gpt Au and 11.9 gpt Ag) over 1.2 m etw. 3.81 gpt AuEq (1.62 gpt Au and 169.2 gpt Ag) over 2.6 m etw in hole 23NB-53, including: 8.21 gpt AuEq (2.77 gpt Au and 420.0 gpt Ag) over 1.0 m etw; 1.23 gpt AuEq (0.45 gpt Au and 60.0 gpt Ag) over 8.4 m etw in hole 23NB-52, including: 3.25 gpt AuEq (1.25 gpt Au and 154.7 gpt Ag) over 1.6 m etw.

Central Area - San Miguel East: The Company is reporting 3 core holes at the San Miguel East target. Highlights include: · 1.33 gpt AuEq (0.55 gpt Au and 60.1 gpt Ag) over 4.4 m etw in hole 23SME-37, including: 2.65 gpt AuEq (2.03 gpt Au and 48.2 gpt Ag) over 0.7 m etw; · 2.23 gpt AuEq (0.99 gpt Au and 95.9 gpt Ag) over 1.4 m etw in hole 23SME-34. Interpretation of results: The drilling described in this news release is the result of Prime's success-based exploration program.

Drill holes 23NB-55, -56, and -58 expand on mineralization from the previously released holes targeting the southern extension of Noche Buena, while 23NB-55 fills in a gap of approximately 180 m between 23NB-38 and -47 which, together with 23NB-56, support expansion of the >1gpt AuEq grade shell at Noche Buena south. 23NB-55, along with previous holes in the area, extends the >1gpt AuEQ grade shell approximately 250m along strike from the Noche Buena pit bottom to the southeast. Drill holes 23NB-49 through -54 and 23NB-57 fill in a gap of approximately 220 m along strike between the previously separated >0.2 gpt AuEq mineralization at Noche Buena and San Miguel East, also generating new >1gpt AuEq grade shell volumes in several areas.

These drill holes also resulted in the identification of two new mineralized structures in the hanging wall of Noche Buena. While the grades and thicknesses of intercepts vary along these structures, they are near-surface relative to the main Noche Buena area and may support the merger of the Noche Buena and San Miguel East pits.