Pioneer Minerals Advances Springfield VTEM Survey Toward Maiden Drilling

Pioneer Minerals Advances Springfield Tungsten-Gold-Gallium Project Toward Maiden Drilling With Twin Milestones

Pioneer Minerals Ltd (ASX: PMM) has reported completion of a heritage survey and commencement of an airborne Versatile Time Domain Electromagnetic (VTEM) survey at the Springfield Tungsten-Gold-Gallium Project within the North Pine Project in Idaho, USA. The Pioneer Minerals Springfield VTEM survey and maiden drilling at the tungsten gold gallium project represent two significant steps forward for the company as it moves closer to drill testing.

According to the ASX announcement dated 1 July 2026, these activities satisfy a key permitting requirement and initiate what the Company describes as the final major technical programme before its maiden drilling programme at Springfield.

Two Milestones, One Clear Direction: Drilling Preparation Intensifies

The update outlines progress on two parallel workstreams that are both relevant to Pioneer Minerals Ltd moving from target definition toward drill testing.

1. Heritage Survey Completion

• The heritage survey was completed across all proposed exploration and drilling areas at Springfield.
• This work was carried out by specialist firm Pinnacle Archaeology.
• Completion addresses an important component of the Company's environmental and cultural heritage obligations within the United States Forest Service (USFS) permitting process.

According to Pioneer Minerals Ltd, this represents another key milestone toward the commencement of drilling following earlier USFS drilling approval.

2. Airborne VTEM Survey Underway

• The planned airborne VTEM survey has now commenced, with operations underway over the Springfield Project.
• The survey is being flown using GEOTECH's airborne VTEM system.
• It is designed to identify conductive sulphide zones that may be associated with the previously defined 2.9 kilometre magnetic anomaly, which has been interpreted by the Company as representing a large-scale tungsten system (ASX: PMM 9 February 2026).

The VTEM programme is described in the announcement as the final major technical programme prior to drilling, with results to be integrated into existing datasets to refine priority drill targets for Pioneer Minerals Ltd.

CEO Commentary

"The completion of the heritage survey and commencement of the VTEM survey represent an important milestone as Pioneer continues to systematically advance the Springfield Project toward its maiden drilling programme.

Over the past twelve months Pioneer has systematically de-risked the Springfield Project through geological mapping, geochemistry, airborne magnetics, independent petrographic studies, metallurgical test work, road access rehabilitation, permitting and most recently securing USFS drilling approval. The commencement of the VTEM survey represents another significant step in this systematic exploration strategy.

The survey has been specifically designed to identify conductive sulphide zones associated with the 2.9-kilometre magnetic anomaly previously identified at Springfield. Independent petrographic studies confirmed a close association between scheelite and pyrrhotite mineralisation, making coincident magnetic and conductive anomalies our highest-priority drill targets."

Michael Beven, Chief Executive Officer, Pioneer Minerals Ltd

Educational Focus: What a VTEM Survey Is and Why It Matters at Springfield

Understanding VTEM in Straightforward Terms

A Versatile Time Domain Electromagnetic (VTEM) survey is an airborne geophysical method. It is used to detect rocks and mineral zones in the subsurface that conduct electricity differently from surrounding rocks.

The core elements are:

• A helicopter-borne electromagnetic system carries a loop that sends short pulses of electrical energy into the ground.
• These pulses create temporary electrical currents in the rocks.
• As these currents die away, they produce a secondary electromagnetic field.
• Onboard sensors measure how strong that response is and how quickly it fades.

Conductive materials, such as sulphide minerals that may host metals, respond differently to less conductive rocks such as most sandstones or granites. By mapping these differences, geophysicists can infer where conductive bodies are located and at what approximate depth.

VTEM is particularly suited to:

• Detecting sulphide-rich zones, including those that may not be visible at surface.
• Providing information down to hundreds of metres below surface, depending on survey parameters and ground conditions.
• Covering large areas relatively quickly without ground disturbance.

Why VTEM Is Relevant to Pioneer Minerals Ltd at Springfield

The rationale for deploying VTEM at Springfield is based on prior technical work reported by Pioneer Minerals Ltd:

• Independent petrographic studies completed by Ore Grade Petrology (ASX: PMM 20 January 2026) confirmed a strong spatial and genetic relationship between:
  • Scheelite, the primary tungsten mineral, and
  • Pyrrhotite, an iron sulphide mineral.

• Pyrrhotite is both magnetic and electrically conductive.
• Airborne magnetic work by Mitre Geophysics previously identified a 2.9 kilometre magnetic anomaly at Springfield, interpreted by the Company as representing a large-scale tungsten system.

By adding VTEM:

• Magnetic data shows where magnetic minerals like pyrrhotite may occur.
• VTEM data shows where electrically conductive zones are present.
• Where both magnetic and conductive anomalies coincide, Pioneer Minerals Ltd considers these to be its highest-priority drill targets, as they may represent zones with higher concentrations of pyrrhotite associated with scheelite.

From an investor perspective, furthermore, this approach provides:

• A more data-rich basis for target selection before committing drilling capital.
• The opportunity to test a clearer geological model that is informed by multiple independent datasets.

Mini Glossary: Key Terms at Springfield

Heritage Survey: Meeting Permitting and Cultural Obligations

The announcement confirms that the heritage survey has been successfully completed across proposed exploration and drilling areas at Springfield.

Key points include:

• The survey was completed in accordance with USFS permitting requirements.
• It addresses environmental and cultural heritage obligations relevant to the project area.
• Pioneer Minerals Ltd acknowledges the professional work undertaken by Pinnacle Archaeology and notes continued cooperation with the USFS through the permitting process.

For investors, completion of this work indicates:

• A further step in aligning Springfield activities with US regulatory requirements.
• Reduced risk of heritage-related delays prior to the maiden drilling programme, subject to ongoing regulatory processes.

Twelve Months of Systematic De-Risking at Springfield

The CEO commentary places the VTEM and heritage milestones within a broader, staged exploration and permitting programme.

According to Pioneer Minerals Ltd, Springfield has been progressively advanced over the past twelve months through the following activities:

This sequence indicates that Pioneer Minerals Ltd has focused on building a multi-layered geological model, advancing access and permitting in parallel with technical work, and positioning Springfield so that drilling can test targets with a more defined technical justification.

What Comes Next: Pathway to Maiden Drilling

The ASX announcement sets out the intended steps following completion and interpretation of the airborne VTEM dataset.

Pioneer Minerals Ltd reports that once VTEM acquisition is complete and the data interpreted, it plans to:

1. Integrate airborne EM data — Combine VTEM results with existing geological mapping, airborne magnetic interpretation, structural models and geochemical datasets.
2. Finalise priority drill targets — Use coincident magnetic and conductive anomalies, along with geological and geochemical evidence, to rank and confirm initial drill targets.
3. Complete final drill planning — Define individual drill hole locations, depths and orientations, taking into account access, permitting conditions and technical objectives.
4. Commence the maiden drilling programme — The Company states that maiden drilling at Springfield remains on schedule following completion and interpretation of the airborne EM survey.

For investors, consequently, the next key update to monitor is the interpretation of the VTEM data, as Pioneer Minerals Ltd has indicated it will update shareholders once this work is completed.

The Springfield Project: Tungsten, Gold and Gallium in Focus

Although the current announcement is focused on heritage and VTEM progress, Springfield is positioned by Pioneer Minerals Ltd as a tungsten-gold-gallium project, offering exposure to multiple commodities.

• Tungsten — Used in cutting tools, wear-resistant parts, defence applications and electronics. Known for its very high melting point and hardness. Global supply is geographically concentrated, so new potential sources attract interest from users seeking diversity of supply.
• Gallium — Used in semiconductors, LEDs and some types of solar cells. Produced mainly as a by-product from other metal processing, with supply concentrated in a small number of regions.
• Gold — Widely traded as a monetary metal and investment asset, providing potential additional value in multi-commodity systems.

The combination of these three commodities within a single system may, if drilling is successful, create multiple potential revenue streams. However, the precise balance would depend on grades, tonnages and metallurgical performance demonstrated in future work.

Claims Tenure Status: 212 Lode Claims Staked, Confirmation Pending

The announcement reiterates the tenure position for the wider North Pine Project area in Idaho. Pioneer Minerals Ltd reports that 212 lode claims have been physically staked under the US Bureau of Land Management (BLM) system.

Under this system, claims are typically awarded on a first-come, first-served basis. There is, however, no guarantee that all claims will be granted to the Company. The tenure status of the North Pine Project is therefore subject to final confirmation by the BLM, and the Company intends to update the market once claim grants have been officially confirmed.

The claims summary from Appendix A is as follows:

For investors, this means that while Pioneer Minerals Ltd has undertaken on-ground staking, formal title for these claims is not yet fully granted and remains an item to track in future announcements.

Why This Update Matters for Investors Watching Pioneer Minerals Ltd

According to the 1 July 2026 ASX announcement, Pioneer Minerals Ltd is moving towards what it identifies as a key catalyst: maiden drilling at Springfield. The Pioneer Minerals Springfield VTEM survey and maiden drilling at the tungsten gold gallium project represent a pivotal moment in the company's exploration journey.

The current update is relevant for several reasons:

• Final technical dataset in progress — The VTEM survey is described as the final major technical programme prior to drilling. Once interpreted, it is expected to support the finalisation of high-priority drill targets based on coincident magnetic and conductive responses.
• Geological rationale supported by prior work — Independent petrographic work has demonstrated a close association between scheelite and pyrrhotite mineralisation. Because pyrrhotite is both magnetic and conductive, overlapping anomalies in magnetic and VTEM datasets offer a clear, testable exploration concept.
• Permitting and heritage steps advanced — USFS drilling approval has already been secured, according to the Company. Completion of the heritage survey addresses an additional requirement under the USFS permitting framework, which may reduce some common non-technical barriers ahead of drilling.
• Exposure to critical and precious commodities — Tungsten and gallium are often classified by governments as critical or important to technology and defence supply chains, while gold adds potential value as a globally traded precious metal.

Overall, the Pioneer Minerals Springfield VTEM survey and maiden drilling at the tungsten gold gallium project signals that the company is approaching a transition point from pure target generation to drilling execution at Springfield.

Investors focused on early-stage critical minerals and gold exploration may consider upcoming VTEM interpretation results, target selection updates, and the commencement of drilling as key milestones to monitor in future Pioneer Minerals Ltd announcements.

Ready to Watch Pioneer Minerals' Journey to Maiden Drilling Unfold?

With the VTEM survey now underway and heritage permitting satisfied, Pioneer Minerals Ltd (ASX: PMM) is approaching a pivotal moment at its Springfield Tungsten-Gold-Gallium Project. For investors seeking to stay across every milestone — from drill target finalisation through to the maiden drilling programme — head to the Pioneer Minerals Ltd investor channel to follow the company's progress as it advances one of Idaho's most compelling critical minerals exploration stories.