Tocvan intercepts new surface mineralization in several zones at Gran Pilar

Expansion of Bojorquez Target and Discovery of New Zone 4 km North of Main Zone within Central Corridor, Exploration Ongoing

HERMOSILLO, MX / ACCESS Newswire / August 28, 2026 / Tocvan Ventures Corp. (the "Company" or "Tocvan") (CSE:TOC)(OTCQB:TCVNF)(WKN:TV3/A2PE64) is pleased to announce new surface exploration results outlining additional gold-silver mineralization across multiple zones at its 100%-owned Gran Pilar Gold-Silver Project in Sonora, Mexico.

Recent rock sampling has expanded the Bojorquez Target and identified a new mineralized zone approximately four kilometres north of the Main Zone within the emerging Central Corridor. Highlight rock samples returned values of up to 2.4 g/t Au and 67 g/t Ag, with copper values reaching 1.6% Cu associated with old mine workings hosted in a tourmaline breccia. The Central Corridor trend has now been traced over a strike length exceeding 1,000 metres on the same structural orientation as the Main Zone (Figure 1.). Sampling and mapping across the Central Corridor are ongoing with soil grids in progress.

Key Highlights

Bojorquez Expansion: Additional sampling has extended the known surface footprint of the Bojorquez Target (previously outlined ~3 km east of the Main Zone), confirming continuity of gold-silver mineralization with strong pathfinder element support.

New Central Corridor Zone: A newly defined zone located ~4 km north of the Main Zone along the Central Corridor returned anomalous to significant gold and silver values in rock chip samples. The mineralized trend extends over 1,000 metres in length and displays geological characteristics similar to the South Block and Main Zone.

Rock Sample Results: Peak values of 2.4 g/t Au and 67 g/t Ag, along with copper up to 1.6% Cu related to historic mine workings in a tourmaline breccia. Samples also returned elevated arsenic, antimony, and other base-metal pathfinde