Jaguar Mining Reports on Ongoing Exploration Drilling at the BA Zone of the Pilar Gold Mine, Brazil

- Drilling supports down-plunge continuity of the BA mineralization and confirms multiple high-grade intercepts

TORONTO, ON / ACCESS Newswire / March 2, 2026 / Jaguar Mining Inc. ("Jaguar" or the "Company") (TSX:JAG)(OTCQX:JAGGF) today reported results from its ongoing drilling at the BA Zone, an area within the Pilar Mine in Minas Gerais, Brazil. The results support the down-plunge continuity of gold mineralization and include multiple high-grade intercepts.

Jaguar has advanced its drilling program at the BA Zone (Pilar Mine) since the publication of its last results (see press release dated August 5, 2025). The latest results further validate continuity of the BA Zone along plunge and demonstrate continued grade and thickness consistent with Jaguar's geological interpretation. Results are summarized below, highlighting select intercepts (see Figure 1). Table 1 provides the main intercepts.

• PPL1205 - 2.50 m @ 12.05 g/t Au (GT: 30)

• PPL1206 - 4.50 m @ 26.20 g/t Au (GT: 118)

• PPL1158 - 5.60 m @ 4.13 g/t Au (GT: 23)

• PPL1176 - 6.50 m @ 3.67 g/t Au (GT: 24)

• PPL1178 - 1.70 m @ 13.41 g/t Au (GT: 23)

• PPL1179 - 2.00 m @ 5.84 g/t Au (GT: 12) from 200.90 m to 205.90 m, and 7.00 m @ 10.84 g/t Au (GT: 76) from 216.75 m to 233.90 m, including 2.80 m @ 23.17 g/t Au (GT: 65) from 220.75 m to 227.60 m.

Figure 1: Section illustrating the drill holes completed in the BA Zone during the second half of 2025 (since the last press release dated August 5, 2025).

"The results demonstrate both the geometric and grade continuity of the BA Zone along the down-plunge direction at depth, enabling consistent and sustainable long-term exploration and mine planning," commented Armando Massucatto, Exploration General Manager. "The 2025 results support the decision to undertake a directional drilling program, scheduled to commence in Q2 2026, which is designed to test and potentially expand the down-plunge extent of BA Zone and support the Company's previously outlined exploration of investigating and defining a projected endowment of over 500,000 ounces of gold. (see November 3, 2025 news release). This work reinforces the long-term potential of the Pilar mine."

"The ongoing exploration drilling at the Pilar mine reflects Jaguar's focus on disciplined exploration to support mine planning, extend visibility on mineralized continuity, and advance organic growth opportunities consistent with our five-year exploration plan," commented Luis Albano Tondo, CEO of Jaguar Mining.

A total of 9,493.50 meters was drilled, distributed as follows: 3,618.60 meters for grade control, 3,696.00 meters for infill, and 2,178.90 meters for exploration. The complete results of the drill holes are presented in the table below (see Figure 2 and Table 1).

Figure 2: Pierce points of all drill holes completed in the BA Zone during the second half of 2025.

The new resource estimate for the BA Zone (Pilar Mine) is in the final stages of review and is expected to be disclosed in a Technical Report targeted in the first quarter of 2026.

The results of 2025 drilling activities at the BA Zone highlight the opportunity for a directional drilling campaign to more effectively test extensions at depth and improve targeting efficiency. Jaguar is in the final stages of contracting a drilling company and is expected to commence the campaign during Q2 2026 (see Figure 3).

Figure 3: Long drill holes projected to test the BA Zone in depth.

Table 1: Diamond drill hole collars in BA Zone in the second half of 2025.