# Sam Riggall

Managing Director and Chief Executive Officer

## Career chronology

- **Current role per selected issuer roster; exact date unavailable: Sunrise Energy Metals** — Managing Director and Chief Executive Officer. [Sam Riggall profile](<https://www.cleanteqwater.com/company/board-and-management/sam-riggall/>) (Biography; Sunrise role and earlier Ivanhoe and Rio Tinto strategy work)

## Contributions and company outcomes

### Feasibility study and project status [exec-sam-riggall-study]

2026 · issuer reported · medium materiality

The company released a Syerston feasibility study in March 2026. It is an engineering assessment and not evidence that the mine is operating or that the financing and construction have been completed; the September quarter reports A$148.1 million in cash at quarter end, with about A$48.2 million from equity/options during the quarter.

**Attribution:** Role overlaps event; causation unproven. Riggall was CEO; financing, study and project status are company-level and personal contribution is not independently isolated.

**Relevance:** Project delivery and funding remain relevant to the team’s development responsibilities.

[Syerston feasibility study](<https://announcements.asx.com.au/asxpdf/20260303/pdf/06wzwr0cx4dr7d.pdf>) (Page 1, study release); [September 2026 Quarterly Activities and Cash Flow](<https://asx.api.markitdigital.com/asx-research/1.0/file/2924-03152075-3A704762>) (Page 8, financial position)

## Governance and interests

### Disclosed related-party engineering services [exec-sam-riggall-related]

FY2026 · issuer reported · medium materiality

Sunrise’s FY2026 annual report says Riggall is also a non-executive director of Clean TeQ Water and that a Sunrise subsidiary paid its subsidiary A$557,368 for engineering services during the year, which Sunrise described as arm’s length. The report discloses A$159,590 accrued payable at 30 June 2026.

**Attribution:** Individual involvement documented. The issuer identifies the directorship and transaction; the disclosure alone does not establish misconduct or independently verify the arm’s-length assertion.

**Relevance:** Disclosed concurrent role and related-party payments merit transparent review.

[FY2026 Annual Report](<https://asx.api.markitdigital.com/asx-research/1.0/file/2924-03132987-3A701269>) (Note 22, related-party disclosures, physical page 68)

## Suitability for the current role

### Role-related experience [exec-sam-riggall-fit]

Career as disclosed · analyst inference · low materiality

The company and a related issuer report senior strategy and project-evaluation roles at Ivanhoe Mines and Rio Tinto. Their account describes law and economics degrees and an MBA; independent credential verification remains outstanding.

**Attribution:** Responsibility not applicable. The relevance of the issuer-described roles to the current post is an analytical inference; independent credential and former-employer checks remain incomplete.

**Relevance:** Indicates a possible match to the stated responsibilities without demonstrating all claimed outcomes.

[Sam Riggall profile](<https://www.cleanteqwater.com/company/board-and-management/sam-riggall/>) (Biography; Sunrise role and earlier Ivanhoe and Rio Tinto strategy work)

## Evidence gaps

- This is a partial public-record screen. Separate named-person topic searches and comprehensive prior-employer, court, regulator, safety and environmental checks have not been completed.

- The issuer’s career and qualification statements have not been independently verified with all previous employers, institutions or registers.

- No clearance or exhaustive negative search result is implied.

- The annual report lists Lynden Polonsky as chief development officer from January 2026, but his role continuation as at 31 October is not independently confirmed and he is not included as current.