A World Manganese Business

Pioneering Manganese Mining

Delivering high-grade manganese ore to the global market, backed by sustainable practices and community commitment in East Nusa Tenggara.

Sustainable Synergy​

Driving the Industry Together, Growing to Build the Nation

We believe that industrial progress and community well-being must go hand in hand . As a provider of high-quality manganese products for the global steel, battery, and energy industries, we do more than just maintain a consistent supply chain. We serve as a strategic partner driving national industrial progress , while remaining committed to delivering tangible value for the well-being of local communities and environmental sustainability in our areas of operation.

512+

Guaranteed Continuity of Supply

19+

Years of experience

77+ ha

Area

42% up

Premium Quality

Manggarai, NTT

Quality Services

4

Global Supply Chain Stability

Ensuring operational sustainability through a stable manganese supply since 2007.
Supported by reliable and timely logistics to meet national and global industrial demand.

5

Green Mining Principles

Fully committed to environmentally conscious mining through land rehabilitation programs, resource conservation, and the implementation of eco-friendly technologies.
We invest in minimizing the ecological footprint of our operations.

6

Local Community Empowerment

Building strategic partnerships and fostering local community well-being through Corporate Social Responsibility (CSR) programs that have a direct impact on education, health, infrastructure, and sustainable economic empowerment in Manggarai.

7

Occupational Health and Safety Excellence

Implementing rigorous industrial OHS standards across all operational lines to ensure the occupational safety and health of employees, partners, and the surrounding community as the top priority.

8

Product Quality Innovation

Producing high-quality manganese (42%+ grade) with flexible specifications for a wide range of modern industrial applications, spanning from steel to battery technology and global energy.

9

Production Capacity & Global Reach

Backed by substantial reserves (2.5 million MT) and a mining area of ​​77.43 hectares, we possess the consistent production capacity to meet the demands of dynamic national and global markets.

Sustainability

Committed To Keep People Healthy & Safe

Sustainability and human safety at the core of its operations. By integrating environmentally friendly mining practices with rigorous Occupational Health and Safety standards—driven by a commitment to keeping people healthy and safe—we are building a safe and prosperous ecosystem for all workers, partners, and surrounding communities.

We Follow Best Practices

We operate by prioritizing proven procedures, the highest compliance standards, and comprehensive risk management. This is our guarantee to consistently deliver quality that is safe and reliable in every project.

Sustainability

Transform Communities Across the Globe

We are here to drive limitless positive change. Through our dedication to empowerment and sustainability, we are committed to creating a legacy of progress, well-being, and self-reliance for communities around the world.

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Indonesia

Jl. Raya Nanga Banda, Kecamatan Reok, Kabupaten Manggarai, Flores - Nusa Tenggara Timur

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The Strength of Our Experience

Driving innovation and shaping the future of the industry on a global scale.

Sustainability

Supply Chain Stability & Capacity

Safety Excellence

Sustainability & Safety Excellence

Synergy & Community Empowerment

Local Community Empowerment

Executive Summary

Years of experience

With experience dating back to 2007, SJA possesses a stable and growing sales track record within the metal industry supply chain.

Sustainable

We deliver manganese supply solutions that are consistent, competitive, sustainable, and value-adding for all stakeholders.

Our Clients

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Frequently Asked Questions

Our mining operations are officially located in Soga, Timbang, and Ropang Village, within Cibal District, Manggarai Regency, East Nusa Tenggara, Indonesia. Our operations cover a mining area of ​​77.43 hectares, with an estimated deposit capacity of 2.5 million metric tons based on drilling data. We produce high-quality manganese products with a concentration (grade) of 42% or higher.

Sustainability principles form the core foundation of every aspect of our operations. We are dedicated to implementing environmentally conscious mining practices that encompass land rehabilitation, resource conservation, and the use of eco-friendly technologies. In addition to environmental preservation, we enforce rigorous Occupational Health and Safety (OHS) standards to ensure the safety of our employees, partners, and the communities surrounding our mining sites.

In addition to serving the traditional needs of the steel and construction industries, our manganese minerals are formulated to support modern technologies, including battery technology, global energy and water purification. In serving B2B clients, we are committed to providing products according to specifications, maintaining continuity of supply, and providing competitive prices based on Government Price Standards. Our reliability has been trusted by various leading global and national buyers such as Sinosteel Raw Material Co. Ltd and Sibelco.