About · Leadership
Led by people who have signed reserve statements and run mine sites.
ACALA is led by its founder, who is also the principal mining engineer and a Competent Person for reserves under BNSP and KCMI. He signs the reserve statements and the strategic mine plans, and works with a team of principal and senior engineers, geologists and product consultants. Under his direction ACALA has moved into infrastructure, energy and materials, including the mining industry, by embracing future trends and uniting top talent.
Leadership
The founder signs the work.

Founder
Join Damanik
Chief Executive Officer
Join has significantly advanced ACALA’s pioneering efforts in new sectors, particularly infrastructure, energy and materials solutions including the mining industry, by embracing future trends and uniting top talent. His multidisciplinary approach leverages the digital economy. He is a seasoned mining professional with extensive experience in mining engineering and planning roles within large-scale open pit operations and projects. As the founder of ACALA, Join has spearheaded innovative strategies to optimise mining operations through advanced technologies.
What the founder signs off
Strategy, mine planning and reserves.
Strategy, mine planning, reserves
Join Damanik
Signs
- Reserve statements as Competent Person under BNSP and KCMI; strategic mine plans and feasibility studies.
Background
- More than 20 years in mine planning, feasibility, optimisation and resource and reserve evaluation; a gold mine acquisition and life-of-mine funding for clients.
Consulting team
Principal and senior engineers, geologists and product consultants.
The leaders work with a team of principal and senior engineers, geologists and product consultants. The full team page has profiles.
- Gladys MaheswariSenior Geologist Consultant
- Yoritaning TyasMining Engineer · Industry Product Consultant
Where the leaders’ work shows
Reports, studies and the software behind them.
More about ACALA
The rest of the company pages.
- CompanyWhat is ACALALicence, certificates, timeline and values.
- CompanyMissionWhat we are for, what we offer, what we commit to.
- CompanyTeamPrincipal engineers, geologists and product consultants.
- CompanyOur ClientsMining companies and universities we work with.
- CompanyOffice LocationMensana Tower, Bekasi: map and directions.
- CompanyJob OffersOpen positions and how hiring works.
Questions people ask
Leadership FAQ
Who leads ACALA?
Who signs the reserve statements?
Who is responsible for the technical reports?
Is ACALA independent?
Can I talk to a leader directly?
Next step
Tell us about the project. We will tell you who at ACALA should hear it.
A short call with the leader or engineer who fits, then a proposal.
