QUARTO
ENERGY & WATER MANAGEMENT
At PT. Energi Quarto Indonesia (Quarto), we are committed to delivering comprehensive, environmentally sustainable energy and water management solutions tailored to the unique needs of each client. With over 20 years of industry expertise, our experienced team provides innovative services that drive sustainable efficiency, improve profitability, and ensure compliance with the highest safety and environmental standards. Our solutions include customized chemical treatment programs to optimize water quality and usage, advanced technologies for energy and water management to enhance operational efficiency, and comprehensive support to maximize system performance, longevity, and environmental responsibility.



As a channel partner of Veolia Water Technologies & Solutions and a partner of NIRA (a subsidiary of SUN – Sinar Mas Mining), we leverage world-class resources and technology to deliver top-tier solutions. We are ISO 9001:2015, 14001:2015, and 45001:2018 certified in Industrial Water & Waste Water treatment and occupational health and safety management systems. Quarto integrates environmentally responsible practices into every project, supporting industries across Indonesia—from oil and gas to chemical processing, metals and mining, and power generation. Our projects span prominent sites such as PT Jawa Power, PT Paiton Energy, PT S2P (PLTU Cilacap), PT Freeport Indonesia – Manyar Smelter Project, PT PLN Nusantara Power, PT PLN Nusantara Power Services, PT PLN Indonesia Power, and many more across Indonesia, where we actively help clients achieve sustainable growth and resilience. At Quarto, we believe in empowering businesses to thrive while protecting our planet, fostering long-term industrial sustainability in today’s evolving landscape.
OUR VISION
To be the trusted and valued partner in innovative energy and water management solutions, driving efficiency, sustainability, and long-term success.
OUR MISSION
To deliver comprehensive, one-stop, and tailored energy and water management solutions that enhance operational efficiency, profitability, and sustainability, while ensuring the highest standards of safety and environmental compliance.
Industries We Support
With a comprehensive portfolio of high-quality products, advanced equipment, and specialized services, Quarto remains dedicated to delivering innovative and tailored water management solutions that address the unique challenges of each industry. Our expertise in boiler and cooling treatment, solid-liquid separation, reverse osmosis, industrial wastewater management, and chemical solutions enables us to enhance operational efficiency, optimize resource utilization, and extend equipment lifespan.
By integrating cutting-edge technologies, technical consultation, and performance assessment services, we help industries achieve greater sustainability, regulatory compliance, and cost-effectiveness. Through continuous innovation and collaboration, Quarto is committed to driving long-term industrial resilience and environmental responsibility across power plants, oil & gas, chemical processing, mining, and air separation industries.

POWER PLANT
Quarto supports the power plant industry by providing advanced
water treatment solutions, including boiler and cooling water treatment, reverse osmosis, and wastewater management, to enhance operational efficiency, system longevity, and environmental sustainability while minimizing downtime and maximizing energy efficiency.

OIL & GAS
Quarto provides the oil and gas industry with efficient water treatment,
chemical solutions, and solid-liquid separation technologies, ensuring safe operations, regulatory compliance, and enhanced equipment reliability while minimizing environmental risks.

CHEMICAL INDUSTRY
Quarto provides the chemical industry with
specialized water treatment solutions, including reverse osmosis chemicals, filtration technologies, and chemical dosing systems, ensuring efficient operations, optimized resource use, and environmental sustainability.

MINING
Quarto provides tailored water management
solutions for the mining industry, including coal treatment chemicals, wastewater treatment, and industrial cleaning services, to enhance safety, efficiency, and environmental sustainability.
OUR SOLUTIONS
At Quarto, we pride ourselves on being a one-stop provider of comprehensive and tailored energy and water management solutions for various industries. Backed by an expert and experienced team, we deliver customized services that align with the unique operational needs of each client.
Our approach ensures environmental compliance, industrial sustainability, and maximum operational efficiency, enabling businesses to achieve long-term profitability and resource optimization. By integrating cutting-edge technologies, advanced chemical treatment programs, and performance-driven engineering solutions, we help industries enhance productivity, extend equipment lifespan, and reduce overall costs.
With a strong commitment to excellence, we empower our clients to meet the highest safety, environmental, and regulatory standards, making Quarto the trusted partner for sustainable industrial water management.
Discover Our Solutions
Our customers' success stories
Quarto telah menyediakan layanan Operasi & Pemeliharaan (O&M) yang komprehensif untuk unit 1, 2, 3, dan 3A PLTU Cilacap, khususnya dalam pengolahan air dan air limbah. Solusi O&M terpadu mereka mencakup tenaga kerja, penyediaan bahan kimia, konsumabel, suku cadang, serta layanan operasional Balance of Plant (BOP), termasuk pemeliharaan preventif dan prediktif harian, perbaikan, penggantian komponen, serta overhaul minor dan major. Berkat kontribusi Quarto, ketersediaan dan keandalan operasional pembangkit listrik tetap tinggi, mencegah gangguan teknis dan finansial terkait kualitas, kapasitas, dan pemanfaatan air dalam proses pembangkitan listrik.
Hasilnya, operasional pembangkit listrik berjalan lancar dan efisien. Kami sangat puas dengan nilai yang telah diberikan oleh Quarto melalui program O&M mereka, serta mengakui efektivitas evaluasi dan proses tinjauan berkelanjutan mereka dalam menjaga keunggulan operasional. Dan juga dalam melakukan pekerjaan Quarto juga sangat memperhatikan aspek Lingkungan dan K3, sehingga O&M yang ditawarkan sangat komprehensif. Saya berharap Quarto terus mampu mempertahankan kinerja yg ada untuk kemandirian Indonesia dibidang Supporting Energi terutama di PLTU.
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Quarto has provided comprehensive Operation & Maintenance (O&M) services for Units 1, 2, 3, and 3A of PLTU Cilacap, particularly in water and wastewater treatment. Their integrated O&M solutions encompassed manpower, supply of chemicals, consumables, spare parts, and Balance of Plant (BOP) operational services—including daily preventive and predictive maintenance, repairs, component replacements, and both minor and major overhauls—which helped maintain high operational availability and reliability, preventing technical and financial disruptions related to water quality, capacity, and utilization in the power generation process.
As a result, the power plant operated smoothly and efficiently. We are very satisfied with the value provided by Quarto through their O&M program and acknowledge the effectiveness of their evaluation and continuous review processes in maintaining operational excellence. Additionally, Quarto consistently prioritized environmental and occupational health and safety aspects, making their O&M offerings truly comprehensive. We hope that Quarto will continue to sustain its performance to support Indonesia’s energy independence, especially in the steam power plant sector.

Irvan Rahmat
PT. Energi Quarto Indonesia telah menjadi mitra PT POMI selaku Operator salah satu PLTU IPP terbesar di Indonesia, khususnya dalam memasok jasa dan juga material untuk penanganan water chemistry (Untuk boiler Supercritical dan Subcritical) dan juga di Water Treatment (pengolahan air laut menjadi air tawar dan air demin), dengan hasil yang baik dan berkelanjutan.
PT POMI terbantukan dalam hal kontinyuitas pasokan material dan kualitas layanan, sehingga PLTU bisa beroperasi dengan aman dan handal, terutama ditinjau dari aspek kualitas air untuk proses produksi listrik.
Kami berterima kasih kepada PT. Energi Quarto Indonesia, atas jasa dan layanan, serta kerjasamanya yang telah terbina selama ini. Semoga sukses selalu, PT. Energi Quarto Indonesia.
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PT. Energi Quarto Indonesia has become a partner of PT POMI, the operator of one of the largest IPP power plants in Indonesia, particularly in supplying services and materials for water chemistry management (for supercritical and subcritical boilers) and water treatment (converting seawater into freshwater and demineralized water), yielding sustainable and excellent results.
PT POMI has benefited from the continuous supply of materials and quality of services, enabling the power plant to operate safely and reliably—especially in terms of water quality for electricity production.
We extend our gratitude to PT. Energi Quarto Indonesia for the services, assistance, and long-standing cooperation. Wishing continued success to PT. Energi Quarto Indonesia.

Sugiyanto
Kami mengapresiasi kontribusi Quarto dalam menyediakan bahan kimia untuk Water Treatment Plant kami. Dengan kualitas produk yang terjaga dan layanan yang andal, Quarto membantu meningkatkan efisiensi proses pengolahan air, memastikan kualitas air yang memenuhi standar, serta mengoptimalkan biaya operasional kami. Kami berharap kerja sama yang baik ini dapat terus berlanjut untuk mencapai keberlanjutan operasional yang lebih baik di masa depan.
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We appreciate Quarto’s contribution in supplying chemicals for our Water Treatment Plant. With consistent product quality and reliable service, Quarto has helped enhance the efficiency of our water treatment processes, ensure water quality meets standards, and optimize our operational costs. We hope this strong collaboration will continue to support even greater operational sustainability in the future.

Yudatomo Tri Nugroho
Our Commitment to Giving Back
At Quarto, we believe that true success is measured not only by our business performance but also by the positive impact we create in our communities. Our commitment to Corporate Social Responsibility is an integral part of our operational philosophy, driving us to actively invest in initiatives that foster community development, environmental stewardship, and social welfare.
Through strategic partnerships with local organizations and thoughtfully designed programs, we empower communities by enhancing educational opportunities, supporting communal improvements, and promoting sustainable environmental practices. Our goal is to build a more resilient and vibrant future, leaving a lasting positive legacy that benefits all stakeholders and uplifts the quality of life for everyone in our community.