About us

We're serious about development

Our objective is the socio-economic growth of the countries where we operate.
We are a multinational, based in Angola – Luanda with subsidiaries in Portugal, the United Arab Emirates, and South Africa.
We are dedicated to:
  • Research, exploration, and diamond trade;
  • Import and export of goods and services;
  • Holding Company;
  • Other activities.

each work is a challenge to produce something unique...

Transform and trading rough diamonds,
offering innovative and sustainable services.


The companies of the Mountain Stability universe.
Mountain Stability

present in the principal trade centers worldwide

Attracting investment to develop the company and improve the socio-economic conditions of the countries where we operate

Our Blog

the Mountain Stability news

Project Yetwene

The Yetwene Mine Project is part of the Chicapa watershed. One of the greatest diamond potential basins.
It is economically viable since many known and promising kimberlite bodies were installed in this area.
Project Yetwene

Expanding diamond reserves

Project Yetwene

Increase in production

Project Yetwene

Foreign exchange and revenue

Project Yetwene

Creating new jobs


Recognition, prospecting, research, and evaluation of secondary diamond deposits

Increasing diamond reserves and contributing to Angola's economy is one of the exploration objectives.


We count on the best partners to continue to develop the areas where we are operating


We support operations in Angola, Portugal, United Arab Emirates and South Africa
Mountain Stability





Visit Us

Avenida Talatona,
Condomínio da Ensa, n.º 45A
Luanda - Angola

Mountain Stability

244 944 290 030