Leading Indonesian Industrial Group

RMU GroupExcellence

Advanced Mining Technology, Maritime Transportation, Manufacturing Excellence, Marine Operations & Construction Services

MPAL TechnologyMaritime ServicesManufacturingMarine OperationsConstruction
5
Companies
19+
Years Experience
500+
Employees
50+
Hectares
RMU Group Overview Video

RMU Group Company Overview

Discover our integrated portfolio of excellence across 5 specialized companies

Patented MPAL Technology
Maritime Transportation Excellence
Advanced Manufacturing Capabilities
Sustainable Operations Focus
ESG
Compliant
ISO
Certified
About RMU Group

Leading Indonesia's Mining Innovation

Pioneering sustainable mining technology and comprehensive construction services with a commitment to environmental stewardship and social responsibility

Our Vision

Converting minerals into metals using a green pressurized hydrometallurgical process that prioritizes sustainable or ESG-based principles, establishing Indonesia as a leader in responsible mining technology.

Green Technology

Converting minerals using environmentally sustainable processes

ESG Principles

Prioritizing Environmental, Social, and Governance standards

Innovation Focus

Developing cutting-edge hydrometallurgical solutions

Our Mission

Process Indonesia's mineral wealth into Energy Transition Metals (ETM) and Rare Earth Metals through patented MPAL technology

Manage complex extraction through seven ESG risk dimensions: Waste, Water, Conservation, Land Use, Community, Social Vulnerability, Governance

Provide comprehensive construction and marine services to support Indonesia's infrastructure development

Ready to Transform Your Mining Operations?

Discover how our MPAL technology can revolutionize your mineral processing while maintaining the highest environmental standards.

Our Track Record

Proven excellence in mining technology and construction services

18+
Years of Excellence
4+
Group Companies
200+
Projects Completed
100%
ESG Compliance

Why Choose RMU Group?

Leading Indonesia's transformation towards sustainable mining and infrastructure development

Innovation Leadership

Pioneering MPAL technology with patented spiral tube reactor system for next-generation mineral processing

ESG Commitment

Comprehensive approach to Environmental, Social, and Governance standards across all operations

Proven Excellence

18+ years of experience delivering complex projects across mining, marine, and construction sectors

Integrated Solutions

Complete ecosystem from technology development to construction implementation and marine operations

Quality Assurance

ISO certified operations ensuring highest standards in safety, environmental management, and quality

Future Ready

Scalable modular technology and infrastructure designed for Indonesia's energy transition needs

Our Journey

From innovative research to industry leadership - the RMU Group evolution

1994

Foundation

PT Kembar Jaya Abadi established, beginning our construction excellence journey

2006

Technology Innovation

RMU founded with focus on revolutionary MPAL technology development

2020

Marine Expansion

PT Gemilang Kharisma operational, expanding into sustainable marine operations

2025

Future Vision

Integrated group leadership in sustainable mining and construction excellence

Looking Ahead

As Indonesia moves towards its energy transition goals, RMU Group stands ready to lead the transformation with our integrated portfolio of sustainable mining technology, responsible marine operations, and world-class construction services.

Our Companies

Integrated Portfolio of Excellence

Five specialized companies working together to deliver comprehensive solutions across mining technology, maritime transportation, advanced manufacturing, marine operations, and construction services

Mining Technology

PT Rekayasa Mineral Utama

Advanced MPAL Technology for Sustainable Mining

Leading provider of Modular Pressure Acid Leaching (MPAL) technology for sustainable mineral processing. Our patented spiral tube reactor system enables scalable, cost-effective processing of nickel laterite ore with significantly lower environmental impact compared to traditional methods.

Jakarta & Bandung
Est. 2006
19 Years InnovationPatented MPAL TechnologyESG-Based SolutionsEnergy Transition Metals

Contact Information

+62 21 22761331
info@rekayasamineralutama.com
www.rekayasamineralutama.com

Our Services

MPAL Technology Development
Mining Process Plant Design
Hydrometallurgical Solutions
Mine Mouth Plant Setup
Green Tailings Processing
ESG Compliance Solutions
Maritime Services

PT Bahana Nusa Pasifik

Trusted Maritime Transportation & Logistics Solutions

PT Bahana Nusa Pasifik adalah perusahaan penyedia jasa transportasi angkutan barang khusus dengan kapal tongkang yang telah beroperasi sejak tahun 2020. Dengan pengalaman dan kompetensi, kami menyediakan solusi transportasi laut yang efisien, handal dan aman bagi seluruh pelanggan/mitra kami.

Bandung, West Java
Est. 2020
5 Years Maritime ExperienceLarge Fleet Capacity (230-300 feet)Multi-Port OperationsSafety First Approach

Contact Information

+62 22 [Contact for Details]
office@bahananusapasifik.com
www.bahananusapasifik.com

Our Services

Specialized Cargo Transportation (230-300 feet)
Barge Vessel Operations
Port Agency Relations
Marine Logistics Management
Cargo Handling & Storage
Maritime Safety Compliance
Manufacturing

PT Perkakas Rekadaya Nusantara

Advanced Tools & Parts Manufacturing Excellence

PT Perkakas Rekadaya Nusantara (PRN) adalah perusahaan manufaktur yang berbasis di Subang dengan spesialisasi komponen otomotif, jigs & fixtures, dies, pallets, serta mesin khusus (special purpose machines). Dengan fasilitas lengkap, tenaga kerja terampil ±419 orang, sertifikasi ISO, serta klien global, PRN telah menempatkan diri sebagai pemain penting di industri manufaktur Indonesia.

Subang, West Java
Est. 2006
±419 people
50 hectares
19 Years Manufacturing ExcellenceISO 9001:2008 Certified419+ Skilled WorkforceGlobal Automotive Clients50 Hectare Facility

Certifications

ISO 9001:2008 - Quality Management
ISO 14001:2004 - Environment Management
OHSAS 18001:2007 - Health & Safety

Major Clients

Toyota (TMMIN)Astra DaihatsuYamahaSuzukiKawasakiChevroletHitachiSiemens

Contact Information

+62 260 472504
prnsbg@indosat.net.id
www.prn.co.id
📠Fax: +62 260 472506

Our Services

Mass Production (Automotive Components)
Jigs & Fixtures Manufacturing
Dies Production (Bending, Piercing, Stamping)
Special Purpose Machines
Steel Pallets & Trolley Manufacturing
Tools & Parts Manufacturing
Marine Operations

PT Gemilang Kharisma

Sustainable Marine Sand Mining Operations

Perusahaan yang bergerak di bidang penambangan pasir laut dan melakukan kegiatannya di perairan pantai Batam. Memiliki aset lahan seluas 33.200 m² atau senilai 400 Miliar Rupiah dengan kepemilikan anak perusahaan sebesar 70%.

Batam Waters
Est. 2020
Land Assets: 33,200 m² (400 Billion IDR)
Strategic Batam Location400 Billion IDR AssetsSustainable Operations70% Group Ownership

Contact Information

+62 778 [Contact for Details]
info@gemilangkharisma.com

Our Services

Marine Sand Mining
Coastal Water Operations
Environmental Compliance
Sustainable Resource Extraction
Marine Equipment Operations
Coastal Development Support
Construction

PT Kembar Jaya Abadi

Building Excellence, Delivering Trust

Established construction company specializing in comprehensive building and infrastructure development with 31 years of proven excellence. Tersertifikasi ISO 9001:2015, ISO 14001:2015, dan ISO 45001:2018.

Samarinda, East Kalimantan
Est. 1994
31 Years ExperienceISO CertifiedInfrastructure SpecialistEast Kalimantan Leader

Contact Information

+62 541 271044
kembarjaya_abadi@yahoo.co.id
www.ptkembarjayaabadi.com/

Our Services

Building Construction
Civil Engineering
Infrastructure Development
Foundation & Piling Works
Steel Structure Installation
Project Management

Additional Subsidiaries

Expanding our capabilities through strategic subsidiary companies

Transportation

Specialized Cargo Transportation

Barge vessel transportation services operating commercially since 2020, supporting maritime logistics across Indonesian waters

Environmental

Marine Sediment Solutions

Specializing in marine sediment cleaning, treatment, transport, and utilization for environmental restoration projects

19+
Years Experience
500+
Employees
100+
Projects Completed
5
Company Portfolio
Our Technology

Revolutionary MPAL Technology

Modular Pressurized Acid Leaching technology with spiral tube reactor system - our patented intellectual property for sustainable mineral processing

What is MPAL Technology?

A breakthrough in mineral processing technology that enables scalable, cost-effective, and environmentally responsible extraction of Energy Transition Metals (ETM) and Rare Earth Metals from various mineral sources.

Key Innovation

Our patented spiral tube reactor system represents a compromise between process conditions, plant equipment design, and production capacity, resulting in optimal efficiency and sustainability.

Lower Operating Conditions

MPAL uses lower temperature & pressure than HPAL process, reducing energy consumption and operational costs

Modular Design

Scalable modular units with 4,000 tons nickel capacity per line. Capacity expandable by adding production modules

Reduced CAPEX & OPEX

Significantly lower investment and operating costs compared to conventional technologies

Environmental Friendly

Green pressurized hydrometallurgical process prioritizing ESG-based sustainable principles

Research Laboratory

Jl. Dangdeur Indah No.3, Sukagalih, Bandung – 40163, West Java

Advanced laboratory facilities for mineral processing research and development

Key Features:

Mineral Testing
Process Optimization
Quality Control
R&D Services

Future Workshop & Pilot Plant

Bunihayu Village, Subang Regency, West Java (10 hectares)

Validates nickel processing with MPAL process for optimal parameters across different ore types

Key Features:

Pilot Plant Testing
Process Validation
Equipment Testing
Staff Training
ESG Compliance

Seven ESG Risk Dimensions

Our MPAL technology manages complex extraction through comprehensive environmental, social, and governance considerations

Waste Management

Comprehensive waste reduction and recycling

Water Conservation

Efficient water usage and treatment systems

Environmental Conservation

Protecting biodiversity and ecosystems

Land Use Optimization

Responsible land management practices

Community Engagement

Local community involvement and benefits

Social Vulnerability

Addressing social impact and equity

Governance Standards

Transparent and ethical business practices

Sustainable Tailing Management

Green Environment Initiative

Integrated approach to tailings management with successful reforestation programs

1

Mine-Mouth MPAL Plant

Building MPAL factory in mining area to achieve low OPEX and green environment

2

Tailings Processing

Simplified and cost-effective MHP tailings processing compared to non-MPAL technology

3

Reforestation Program

Treating MPAL tailings for reforestation with bacteria-based organic fertilization

4

Pioneer Crop Plantation

Successfully growing sorghum as pioneer crop in treated mining areas

Proven Results: Sorghum Pioneer Crop

Our reforestation experiment shows successful growth of sorghum as pioneer crop in treated mining areas, demonstrating effective land rehabilitation from 10 days to 120 days after planting with bacteria-based organic fertilization.

Our Leadership Structure

Expert Leadership for Innovation

Our leadership team combines decades of industry expertise across mining technology, maritime operations, manufacturing, and construction to drive sustainable growth and innovation

500+
Total Team Members
5
Operating Companies
25+
Leadership Positions
100%
Commitment to Excellence

RMU Group Leadership

Board of Directors & Commissioners

IT

IBIH TG HASSAN

President Commissioner

RMU Group

25+ Years

Strategic leadership and corporate governance oversight for RMU Group's diversified portfolio. Provides strategic direct...

Corporate GovernanceStrategic Planning+2 more
HI

H. IR. DJONI ROSADI

President Director

RMU Group

Ir. (Engineering)
20+ Years

Operational leadership and strategic direction for RMU Group's integrated business portfolio. Oversees day-to-day operat...

Operations ManagementEngineering+2 more
IA

IWAN ABDURRACHMAN, IR.

Commissioner

RMU Group

Ir. (Engineering)
18+ Years

Provides strategic oversight and governance guidance for RMU Group's business operations and development initiatives.

Engineering ManagementStrategic Oversight+1 more
MW

MULYO WIDODO, PROF. DR. IR.

Commissioner & Founder

RMU Group

Prof. Dr. Ir. (Professor, Doctorate in Engineering)
30+ Years

Founding member and strategic advisor, providing academic and technical expertise to guide RMU Group's technology develo...

Academic LeadershipTechnology Innovation+2 more
MZ

MUHAMMAD ZAKI MUBAROK, PROF. DR. IR.

Commissioner

RMU Group

Prof. Dr. Ir. (Professor, Doctorate in Engineering)
35+ Years

Lead researcher and founder of MPAL technology. Professor and expert in hydrometallurgical processes with decades of exp...

HydrometallurgyMPAL Technology+2 more

PT Rekayasa Mineral Utama

Mining Technology

19+
Years Innovation
Patented
MPAL Technology
100%
ESG Compliance
MZ

MUHAMMAD ZAKI MUBAROK, PROF. DR. IR.

Expert Staff & Founder

PT Rekayasa Mineral Utama

Prof. Dr. Ir.
35+ Years

Chief Technology Officer and founder, leading MPAL technology development and research initiatives. Drives innovation in...

MPAL TechnologyHydrometallurgy+2 more

PT Bahana Nusa Pasifik

Maritime Services

230-300ft
Fleet Capacity
100%
Safety Record
5+ Years
Experience
RT

R. TINO RILANTINO PRAWIRAKUSUMAH

Managing Director

PT Bahana Nusa Pasifik

15+ Years

Overall leadership and strategic direction for maritime transportation operations, fleet management and business develop...

Maritime OperationsStrategic Management+2 more
RA

R. ACHMAD HILMY AL RASYID

Operations Director

PT Bahana Nusa Pasifik

12+ Years

Operational excellence and safety compliance for maritime transportation services, ensuring efficient and secure cargo o...

Operations ManagementMaritime Safety+2 more
MF

M. FAHMI RACHMAT

General Manager

PT Bahana Nusa Pasifik

10+ Years

Day-to-day operations management and coordination between departments for seamless service delivery and customer satisfa...

General ManagementOperations Coordination+1 more

PT Perkakas Rekadaya Nusantara

Manufacturing

419+
Workforce
103
Machining Units
50 Hectares
Land Area
2008
ISO Certified
MD

Managing Director

Managing Director

PT Perkakas Rekadaya Nusantara

20+ Years

Strategic leadership for manufacturing operations across 6 production plants with 419+ workforce. Oversees automotive co...

Manufacturing StrategyOperations Management+2 more
TD

Technical Director

Technical Director

PT Perkakas Rekadaya Nusantara

18+ Years

Technical leadership for advanced manufacturing processes, quality control, and engineering excellence. Ensures ISO comp...

Manufacturing EngineeringQuality Management+2 more

PT Gemilang Kharisma

Marine Operations

33,200 m²
Land Assets
400B IDR
Asset Value
Batam Waters
Location
MD

Managing Director

Managing Director

PT Gemilang Kharisma

15+ Years

Strategic leadership for marine sand mining operations in Batam waters with focus on sustainable practices and environme...

Marine OperationsEnvironmental Compliance+2 more
OM

Operations Manager

Operations Manager

PT Gemilang Kharisma

12+ Years

Daily operations management for marine mining activities, equipment coordination, and environmental monitoring to ensure...

Marine MiningEquipment Management+2 more

PT Kembar Jaya Abadi

Construction

31 Years
Experience
2015
ISO Certified
East Kalimantan
Location
SN

SYARIFUDIN NURDIANSYAH

PJBU (Penanggung Jawab Badan Usaha)

PT Kembar Jaya Abadi

15+ Years

Legal representative and business operations oversight for construction projects and corporate compliance. Ensures regul...

Business OperationsLegal Compliance+2 more
IO

IR. OLIANSYAH OESNAWI

PJTBU (Penanggung Jawab Teknik Badan Usaha)

PT Kembar Jaya Abadi

Ir. (Engineering)
20+ Years

Technical leadership for construction projects, engineering solutions, and quality assurance. Oversees technical aspects...

Construction EngineeringTechnical Management+2 more

Our Leadership Philosophy

Excellence

Striving for the highest standards across all our business units, from technology innovation to operational excellence

Innovation

Leading technological advancement in mining, maritime, manufacturing, and construction industries

Collaboration

Building strong partnerships across industries to create sustainable value for all stakeholders

Contact Us

Let's Connect

Ready to explore mining technology solutions or discuss your construction needs? Our team is here to help you achieve your goals.

Get Started Today

Whether you need mining technology consultation, construction services, or marine operations support, we're ready to help.

MPAL Technology Consultation
Mining Technology Solutions
Marine Sand Mining Operations
Construction & Infrastructure
Environmental Compliance
Project Management Services

Quick Contact

+62 21 22761331
info@rekayasamineralutama.com
Head Office

RMU Group Headquarters

JL. TB Simatupang Kav. 36, RT.001/RW015, Cilandak Barat

Jakarta Selatan, DKI Jakarta 12430

+62 21 22761331
info@rekayasamineralutama.com
Mon - Fri: 8:00 AM - 5:00 PM
Laboratory

RMU Research Laboratory

Jl. Dangdeur Indah No.3, Sukagalih

Bandung, West Java 40163

+62 21 22761331
info@rekayasamineralutama.com
Mon - Fri: 7:00 AM - 4:00 PM
Workshop & Pilot Plant

RMU Future Workshop

Bunihayu Village, Jalancagak District, Subang Regency

Subang, West Java 41281

+62 21 22761331
info@rekayasamineralutama.com
Mon - Fri: 7:00 AM - 4:00 PM
Marine Operations

PT Gemilang Kharisma

Ruko Kharisma Business Centre Blok C No. 3-A, Kelurahan Sungai Harapan, Kecamatan Sekupang

Batam, Riau Islands

+62 778 4805412
gemilangkharisma1@gmail.com
Mon - Fri: 8:00 AM - 5:00 PM
Construction Office

PT Kembar Jaya Abadi

Jl. Untung Suropati, Perum GTL Blok BB No.14

Samarinda, East Kalimantan 75243

+62 541 271044
kembarjaya_abadi@yahoo.co.id
Mon - Fri: 8:00 AM - 5:00 PM

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