About Us

Built on integrity, innovation, and client-focused service.

Bluestone is a Tanzania-based team delivering contractor, mining supply, and general supply solutions.

Company Overview

Bluestone delivers tailored solutions for mining, engineering, and general supply with a strong client focus.

Our goal is simple: safe execution, quality work, and dependable delivery.

Founding Philosophy

Built on integrity, innovation, and service, Bluestone operates as a practical solution partner across sectors.

We value long-term relationships, professionalism, and measurable client value.

Team
Leadership / Team Photo
Bluestone leadership and technical teams
Field Work
Operations Site Photo
Engineering and mining support in action

Our Vision

To be Tanzania's trusted and dynamic provider of engineering, mining, and business solutions.

Our Mission

We deliver integrated solutions that create value through expertise, partnerships, and responsible execution.

Core Values

The values that shape how we work, lead, and deliver.

Integrity

Honest communication, transparency, and accountability in every engagement.

Safety & Quality

Strong safety culture and high standards in execution, reliability, and workmanship.

Growth & Value

Creating sustainable growth and measurable value for clients, communities, and partners.

Team Work

Collaborative delivery through skilled professionals and shared responsibility.

Innovation & Creativity

Using practical innovation and creative thinking to solve operational challenges.

Excellence in Service

Client-focused service that prioritizes results, responsiveness, and long-term trust.

Management Team

Young, dynamic leadership backed by deep mining and engineering experience.

Salim Issa Sleym - Managing Director

Leads Bluestone with a people-first, client-focused approach grounded in business management experience.

Eng. Salum Khamis Chamuwange - Technical Director

Mechanical engineer focused on project execution, maintenance strategy, and technical delivery.

Senior Specialists & Project Leadership

Experienced project, electrical, mechanical, and HSE specialists support complex mining and infrastructure work.

CSR & Partnerships

Business growth with community impact and long-term collaboration.

Community impact, responsible operations, and value-driven partnerships remain part of how we grow.

  • Education and skills development support
  • Health, safety, and hygiene awareness initiatives
  • Environmental conservation and sustainable practices
  • Youth and women empowerment through employment and entrepreneurship
  • Strategic investment and partnership opportunities