About Us
History & Profile
Building National Defense Industry Self-Reliance
PT Jalakaca Mandiri Sejahtera was established as a strategic move to meet the needs of the maritime, renewable energy, and defense system sectors in Indonesia. Under the guidance of the Bhumyamca Social Foundation (YASBHUM – Indonesian Navy), we have grown into an integrated solutions provider that combines modern technological expertise with a commitment to domestic industrial sovereignty.

Company Vision and Mission
Company Vision
To become a strategic partner in a trusted and competitive business within the sectors of new and renewable energy (NRE), information technology, and the maintenance of defense and security equipment.
Company Mission
Company Mission
- Cultivate an entrepreneurial spirit and expand the network of business partners to enhance the company’s competitiveness
- Implement good corporate governance and support the development of human resource potential
- Strengthen cooperation in the battery and solar panel industries, the development of digitalization and telecommunications, and the maintenance of defense and security equipment.
Company Management
Leadership Structure
board of Commissioners
Gunawan Purwo Handoko
Commissioners
Board of Directors
Maman Rohman
Directors
Shareholders

Bhumyamca Social Foundation
(YASBHUM – TNI AL Group)
Strategic Partner for the Defense Industry and the Nation
Manufacturing Facility
2 High-Tech Factories in Bogor
Battery & BESS Factory
Focus: BESS Assembly, Lithium Battery Modules, Solar PV Installation, Battery Testing Laboratory
Chemical & Paint Factory
Focus: Formulation of G-CLEAN Maintenance Chemicals & Warehousing for SEIV Chemolux Paint
Project History
Work Experience and Track Record
Indonesian Navy Ship Backup Batteries & UPS
Procurement of Backup Batteries and UPS for Indonesian Navy Warship Communication Systems.
SEIV Marine Protective Paint
Supply of SEIV Chemolux Maritime Protective Paint for Indonesian Navy Ship Dry-Docking Maintenance.
Chemical Cleaning of Ship Engines and Weapons
Application of I-CLEAN Chemicals in the Routine Maintenance of Indonesian Navy Ship Engines and Weaponry.
Hybrid Solar PV & Containerized BESS
Installation of Hybrid Solar Power Plants (PLTS) and Containerized BESS in Coastal Areas and Papua.
Contact us
Your Strategic Partner
Ready to discuss BESS manufacturing requirements, solar PV projects, SEIV industrial protective coatings, G-CLEAN chemical treatments, or Harkomlek maintenance? Our professional technical and sales teams are ready to assist.
Headquarters
Indonesian Navy Office Complex, Buncit Mas Complex B-2, Mampang Prapatan No. 108, South Jakarta
Factory 1
Jl. Kampung Kembang Kuning, Klapanunggal, Bogor
Factory 2
Jl. Raya Wanaherang No.258, Cicadas, Kab. Bogor 16964
Telephone
+62 813-8430-0989
pt.jms@jalakacams.co.id
PT. Jalakaca Mandiri Sejahtera
Manufacturing of lithium batteries, solar panels, marine protective coatings, and military-grade maintenance chemicals. Operating under the auspices of YASBHUM – Indonesian Navy (TNI AL).
Key Products
© 2026 PT Jalakaca Mandiri Sejahtera. All rights reserved.

