# Anthony Chamberlain

Non-Executive Director

## Career chronology

- **Current at 29 October 2026: Valiant Gold** — Non-Executive Director. [Investor presentation October 2026](<https://asx.api.markitdigital.com/asx-research/1.0/file/2924-03155135-6A1352347>) (PDF p.4, Board &amp; Management)

- **At 15 June 2022: Vimy Resources Limited** — Executive Director and Chief Operating Officer. [Re Vimy Resources Ltd \[2022\] WASC 233](<https://casechat.au/cases/au/re-vimy-resources-ltd>) (Judgment paragraph 5)

- **Appointed 4 August 2022; end date unknown: Deep Yellow** — Executive team member. [Deep Yellow board and executive appointments](<https://deepyellow.com.au/wp-content/uploads/DeepYellowBoardAndExecutiveAppointments05Aug22.pdf>) (PDF p.1, appointment)

- **1 February 2019 to 4 August 2022; COO commenced February 2022: Vimy Resources** — Director. [Vimy 2019 annual financial report](<https://announcements.asx.com.au/asxpdf/20190927/pdf/448y9js1v9y1y1.pdf>) (Printed p.16, director appointment); [Vimy half-year financial report](<https://announcements.asx.com.au/asxpdf/20220311/pdf/456yb22xwydvcy.pdf>) (Printed p.3, COO appointment); [Vimy scheme implementation](<https://announcements.asx.com.au/asxpdf/20220805/pdf/45ckvcn59f55tm.pdf>) (Board changes, scheme implementation)

## Contributions and company outcomes

### Vimy merger completed; Mulga Rock remained in study [chamberlain-vimy-merger]

2022–October 2026 · issuer reported · medium materiality

Deep Yellow reported implementation of its Vimy merger on 4 August 2022 and Chamberlain joining its executive team. In October 2026 Deep Yellow reported ongoing Mulga Rock process optimisation and revised feasibility work.

**Attribution:** Role overlaps event; causation unproven. He was a Vimy executive director and COO at the merger; a personal contribution to the transaction is not isolated. His Deep Yellow role’s end date and any responsibility for later work are not established.

**Relevance:** Actual merger outcome and later project development context; later feasibility work is not production.

[Re Vimy Resources Ltd \[2022\] WASC 233](<https://casechat.au/cases/au/re-vimy-resources-ltd>) (Judgment paragraph 5, Vimy role); [Deep Yellow board and executive appointments](<https://deepyellow.com.au/wp-content/uploads/DeepYellowBoardAndExecutiveAppointments05Aug22.pdf>) (PDF p.1, merger and executive appointment); [September 2026 activities report](<https://nsx.com.na/activities-report-for-the-quarter-ended-30-september-2026/>) (Highlights, Mulga Rock project)

## Environmental record

### Mulga Rock economic and rehabilitation criticism [chamberlain-mulga-criticism]

November 2020–October 2026 · alleged · medium materiality

In November 2020 the Conservation Council of WA and The Australia Institute criticised assumptions in Vimy’s Mulga Rock feasibility work and alleged insufficient consideration of rehabilitation costs. Vimy later reported 2021 mining-proposal and closure-plan approvals and regulator confirmation of substantial commencement. In October 2026 Deep Yellow described ongoing revised feasibility work; neither the company’s later report nor the 2026 update specifically resolves the 2020 criticism.

**Attribution:** Role overlaps event; causation unproven. Chamberlain was a Vimy director during the 2020 criticism, but the organisations did not establish his personal responsibility. The criticism is advocacy, not a finding of misconduct; Vimy’s later approvals statement is not an independent finding on the disputed economics.

**Relevance:** Material disputed economic and environmental context for a former mining-development role.

[Mulga Rock uranium economic and approvals briefing](<https://www.ccwa.org.au/mulga_rock_uranium>) (Key findings and rehabilitation-cost concerns); [Vimy 2019 annual financial report](<https://announcements.asx.com.au/asxpdf/20190927/pdf/448y9js1v9y1y1.pdf>) (Printed p.16, director appointment); [Vimy half-year financial report](<https://announcements.asx.com.au/asxpdf/20220311/pdf/456yb22xwydvcy.pdf>) (Printed p.3, approvals and substantial commencement); [September 2026 activities report](<https://nsx.com.na/activities-report-for-the-quarter-ended-30-september-2026/>) (Highlights, Mulga Rock revised feasibility)

## Suitability for the current role

### Issuer-reported experience relevant to board oversight [val-director-anthony-chamberlain-fit]

Prior and concurrent roles as described by issuer · analyst inference · medium materiality

The issuer reports a metallurgy PhD and operational and executive roles at WMC, BHP and several junior resource companies, including Vimy.

**Attribution:** Responsibility not applicable. Issuer biography describes roles but does not independently establish individual contributions or outcomes.

**Relevance:** Background is potentially relevant to board oversight; verification and fuller diligence remain outstanding.

[Investor presentation October 2026](<https://asx.api.markitdigital.com/asx-research/1.0/file/2924-03155135-6A1352347>) (PDF p.4, Board &amp; Management)

## Evidence gaps

- Person-specific topic and indexed regulator searches were performed; some employer outcomes, underlying records, career dates and qualifications remain unverified.

- Prior-employer dates and individual responsibility for company outcomes are not established.

- A specific signed Vimy response to the 2020 Conservation Council and Australia Institute economic and rehabilitation allegations was not located; later approvals do not resolve the disputed assumptions.
