# Douglas Hamilton

General Manager Asia and President Director Indonesian business

## Career chronology

- **Joined Macmahon in 2016 as Indonesia asset manager, appointed operations manager 2019; general manager Asia and president director Indonesian business; prior roles with Leighton Asia.: Macmahon Holdings Limited** — General Manager Asia and President Director Indonesian business. [Annual Report FY2026](<https://asx.api.markitdigital.com/asx-research/1.0/file/2924-03122009-6A1338897>) (physical PDF p. 45, executive biography)

## Education and qualifications

### Qualifications and verification [mah_hamilton_d_education]

Education dates not established · issuer reported · low materiality

The dated annual report does not identify a degree; independent qualifications were not established.

**Attribution:** Responsibility not applicable. Issuer or professional biography reports qualifications; no direct independent verification is implied.

**Relevance:** Relevant to assessing professional preparation.

[Annual Report FY2026](<https://asx.api.markitdigital.com/asx-research/1.0/file/2924-03122009-6A1338897>) (physical PDF p. 45, executive biography)

## Personal achievements

### Indonesian mining-safety training [mah_hamilton_d_personal_success]

March 2023 · documented · medium materiality

Indonesia’s energy ministry reports that Douglas Hamilton, as president director of PT Macmahon Mining Services, addressed a March 2023 mining-safety management training program held with the ministry. Participation documents an action; it does not independently measure its effectiveness.

**Attribution:** Individual involvement documented. The ministry names Hamilton as participating; downstream safety outcomes are not attributed to him.

**Relevance:** Directly relevant to leadership and safety in Indonesia.

[Mine safety management training](<https://bpsdm.esdm.go.id/posts/2023/03/08/pt-macmahon-gandeng-ppsdm-geominerba-untuk-kendalikan-keselamatan-tambang/2408>) (8 March 2023 report, training and participant details)

## Suitability for the current role

### Role-relevant professional experience [mah_hamilton_d_role_fit]

Through 2026-10-31 · analyst inference · low materiality

As an analytical inference, the reported experience is relevant to general manager asia and president director indonesian business: Joined Macmahon in 2016 as Indonesia asset manager, appointed operations manager 2019; general manager Asia and president director Indonesian business; prior roles with Leighton Asia. The degree of individual contribution to past company outcomes is not established.

**Attribution:** Responsibility not applicable. Analytical assessment based on disclosed career; it is not a finding of personal delivery or misconduct.

**Relevance:** Matches documented experience to the role.

[Annual Report FY2026](<https://asx.api.markitdigital.com/asx-research/1.0/file/2924-03122009-6A1338897>) (physical PDF p. 45, executive biography)

## Evidence gaps

- Independent verification of education, credential status, full prior-employer tenures and individual outcomes is incomplete.

- Focused public-source screening is not a comprehensive court, regulatory, criminal, sanctions or credential check; some historical employer records and local-language sources were not reviewed.
