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2023

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Nickel is a vital metal widely <a href="https://tbpnickel.com/id/media/kabar-obi/highlight/ini-dia-kegunaan-dan-manfaat-nikel-dalam-kehidupan-sehari-hari">used</a> in various modern industries, from electronics and electric vehicle (EV) batteries to stainless steel production. However, nickel isn't simply found as a shiny metal on the surface of the earth. So what exactly does it look like in nature?
<h3>What is Nickel?</h3>
Nickel (Ni) is a strong, rust-resistant, silvery-white metallic element with magnetic properties. In everyday life, we often encounter nickel in processed products such as alloys, but seldom see its natural form.


<h3>Nickel in Nature: Like Ordinary Soil, But Highly Valuable</h3>
<img alt="Copy of limonit 5" src="https://api.tbpnickel.com/storage/images/old/images/Copy of Limonit 5.jpg">
Nickel doesn't occur naturally as a pure, shiny metal. Instead, it's found in the form of nickel ore&mdash;rock or soil that contains a certain amount of nickel and can be processed for extraction.
What does this nickel ore look like? It often appears as ordinary soil or rock. Here are some visual examples of nickel in nature:
<h5>● Nickel Laterite:
</h5>
<ol><li>Similar in appearance to red or yellowish-brown soil.</li><li>Its texture is like clay or dense loam.</li><li>Commonly found in tropical regions such as Indonesia and the Philippines.</li><li>Contains nickel-rich minerals such as limonite and garnierite.</li></ol>
<h5>● Nickel Sulfide:
</h5>
<ol><li>A hard rock containing nickel and copper metals.</li><li>Typically found deep in the Earth's crust, the result of ancient volcanic activity.</li></ol>
<h5>● Garnierite (in laterite):
</h5>
<ol><li>Pale to bright green in color.</li><li>Soft, clay-like texture, but with a high nickel content.</li></ol>
If you see a heap of red soil in a nickel mining area, it's most likely laterite nickel ore. It may look like ordinary soil, but its economic value can be pretty high, depending on the nickel content.
In Indonesia, nickel is commonly found in layers of laterite soil, which are soils that are frequently leached by rain. This soil is generally reddish or yellowish in color. This contrasts with nickel found on other continents, such as Australia, where it is generally in the form of nickel sulfide, requiring deeper excavation because it is mostly found below the surface.
At Harita Nickel, the nickel ore found in laterite layers is processed using two main nickel processing methods:<a href="https://tbpnickel.com/id/media/kabar-obi/highlight/yuk-kenali-proses-pengolahan-nikel-di-harita-nickel"> Rotary Kiln Electric Furnace (RKEF) and High-Pressure Acid Leaching (HPAL)</a>. In the RKEF method, nickel ore is processed into ferronickel, which is then used in the manufacture of stainless steel. In the HPAL method, low-grade nickel ore is processed into Mixed Hydroxide Precipitate (MHP), nickel sulfate, and cobalt sulfate, all three of which play a crucial role in the manufacture of electric vehicle batteries.&nbsp;&nbsp;

Understanding Nickel's Natural Forms: From Laterite to Sulfide Rocks

From July 30 to August 1, 2025, hundreds of children from across Obi Island gathered in the New Settlement Area of Kawasi Village to take part in the 2025 Obi Children’s Day Festival, a warm celebration nurturing creativity, character, and friendship that transcended school boundaries.
Organized by Harita Nickel to commemorate Indonesia’s National Children’s Day, the festival carried the theme “Joyful Obi, Bright Future.” A total of 679 participants from 43 schools, from early childhood education (PAUD) to senior high school, joined various competitions in arts, literacy, and quizzes.

<img alt="30072025 hn photo festival hari anak obi. 25 11zon" src="https://api.tbpnickel.com/storage/images/old/images/30072025_HN_Photo Festival Hari Anak Obi._25_11zon.jpg"> 
“This festival reflects our commitment to building a social environment that supports children’s growth and development, rejects child labor, and upholds their fundamental rights,” said Ifan Farianda, Community Development Manager at Harita Nickel.

The initiative also marks the beginning of the “Child-Friendly Village” program, which is expected to continue and expand to reach more areas.

One of the festival’s main attractions was the Clash of Champions quiz competition for junior and senior high school students. SMP 13 South Halmahera clinched the junior high title, while SMAN 06 South Halmahera took top honors in the senior high category.

<img alt="31072025 hn photo festival hari anak obi 36 11zon" src="https://api.tbpnickel.com/storage/images/old/images/31072025_HN_Photo Festival Hari Anak Obi_36_11zon.jpg"> 
Children also enjoyed an inspiring storytelling session with professional storyteller Mochammad Awam Prakoso, affectionately known as Kak Awam, who delivered tales rich with messages on the importance of good character.

The gathering brought together children from remote corners of Obi Island, many meeting peers from other villages for the first time. “This is the first time they’ve met on such a large scale. It gives them a glimpse of a world beyond their villages,” Ifan noted.
<img alt="30072025 hn photo festival hari anak obi 15 11zon" src="https://api.tbpnickel.com/storage/images/old/images/30072025_HN_Photo Festival Hari Anak Obi__15_11zon.jpg"> 
For Saimah Kasuba, Head of the Provincial Education Branch Office for the South Halmahera region, the festival stood out as a model of productive collaboration between the private sector and the community.

“Children need spaces to express themselves, and events like this create those opportunities. The government cannot do it alone, and Harita Nickel has shown it is committed to improving education quality in the region,” she said. She also called on parents to take an active role in encouraging and supporting their children’s education.
The Obi Children’s Day Festival stands as proof that spaces for children’s expression and growth can be built anywhere, even in the middle of an industrial zone. Children's joy has found its place on Obi Island, where mines and smelters operate.

Obi Children’s Day Festival 2025: Celebrating Creativity and Growth with Harita Nickel

Amid the busy industrial operations on Obi Island, North Maluku, a used oil drum suddenly tipped over, spilling its contents onto the ground. But don’t panic, this wasn’t a real accident. It was part of a hazardous waste (B3) spill response drill conducted by PT Halmahera Jaya Feronikel (HJF), a business unit of Harita Nickel.
In this simulation held within the production area, teams from various departments collaborated efficiently, wearing full protective equipment and following strict emergency procedures.

Muhammad Sulfikar Yona, Environment Compliance Foreman who led the exercise, explained that the simulation aimed to ensure the readiness of all teams in handling unforeseen situations. “We want everyone prepared, not just theoretically, but practically and effectively,” stated Sulfikar.
<img alt="13072025 hn hjf drill tumpahan lb3 1 11zon" src="https://api.tbpnickel.com/storage/images/old/images/13072025_HN_HJF_Drill Tumpahan LB3 -1-_11zon.jpg"> 
The drill is part of the implementation of ISO 14001:2015 standards on environmental emergency preparedness and response. “This activity also serves to evaluate the readiness of our equipment and inter-departmental coordination during emergencies,” Sulfikar added.

During the simulation, which took place in the production area, teams from various departments worked shoulder-to-shoulder. The production team moved quickly to contain the spill, while the Environment team supervised and provided technical guidance. Everyone moved in sync, like a well-rehearsed orchestra.

Sulfikar further explained that the drill is conducted at least annually as part of Harita Nickel’s firm commitment to workplace safety and environmental protection. To him, safety and environmental awareness are not the responsibility of one department alone, but a shared duty across the entire organization.

Agung Aribowo, Deputy Department Head of Technical Support at PT HJF, highlighted that the company holds ISO 14001 certification for environmental management and ISO 45001 for occupational safety. These certifications demonstrate that Harita Nickel goes beyond production, ensuring all operational activities are conducted safely, responsibly, and sustainably.

“Simulations like these are not just to fulfill standard obligations but integral to building a robust Occupational Health, Safety, and Environmental (OHSE) culture within the company,” Agung explained.
<img alt="13072025 hn hjf drill tumpahan lb3 jpg 1 11zon" src="https://api.tbpnickel.com/storage/images/old/images/13072025_HN_HJF_Drill Tumpahan LB3_JPG-1-_11zon.jpg"> 
What can be learned from a deliberately spilled oil drum? In the high-risk, end-to-end nickel industry, preparation is everything. Teamwork isn’t just about efficiency, it’s about safety, environmental preservation, and operational continuity.

Ultimately, environmental responsibility is not just the duty of the Environment department, but of all of us, the people of Harita.

Turning Training into Habit: Strengthening HSE Culture at Harita Nickel

Harita Nickel has once again launched Harita Saruma, a digital creativity training and development program for Insan Harita (Harita personnel). Now in its second batch, the program serves as a collaborative space to learn how to create visual content that is relevant, ethical, and positively impacts both the company’s and individual’s image.
“Harita Saruma is a shared learning space to create content that is not only engaging but also responsible. The materials cover the basics of photography and videography, visual storytelling, as well as brand safety principles and adherence to the company’s social media guidelines, ensuring every work aligns with Harita’s values,” said Casandra Gitaputri, Digital & Social Media Superintendent at Harita Nickel.

For Andra, employees&mdash;known within the company as Insan Harita&mdash;can gain experience, expand their networks, and take on a greater role in the company by contributing meaningful content.
<img alt="31072025 hn photo harita saruma 22 11zon" src="https://api.tbpnickel.com/storage/images/old/images/31072025_HN_Photo Harita Saruma_22_11zon.jpg"> 
This batch featured Aqil Muhamad Affif, a content creator known for his stunning visuals from around the world. Through photography techniques, storytelling, and tips on building a creator’s identity, Aqil encouraged participants to see social media not merely as a platform for sharing, but as a space to build positive influence.

For one participant, Wigit Sukmawan, Community Relations Supervisor, the experience was invaluable. “Harita Saruma 2025 is full of energy, inspiration, and collaboration. I see it as the first step towards continuous learning, sharing, and growing together in the spirit of impactful communication,” he said.&nbsp;

Learning directly from practitioners like Aqil provided a fresh perspective on effective digital communication, not just as a sharing platform, but as a space for building positive influence.
<img alt="31072025 hn photo harita saruma 11 11zon" src="https://api.tbpnickel.com/storage/images/old/images/31072025_HN_Photo Harita Saruma_11_11zon.jpg"> 
The program also encouraged cross-unit participation at Harita Nickel, including employees from PT Halmahera Jaya Feronikel (HJF) like Febriyani Sillia. “Through Harita Saruma, I met many new friends from other business units. I gained experience and more friends,” she said. Febriyani appreciated the program, noting that there are many positive ways Insan Harita can introduce Harita Nickel to the public through social media.

Harita Saruma stands as a tangible example of Harita Nickel’s commitment to providing an inclusive work environment that supports employee potential development. Beyond professional duties and responsibilities, Insan Harita are given space to create, pursue hobbies, and hone digital communication skills that are increasingly relevant today.
<img alt="31072025 hn photo harita saruma 35 11zon" src="https://api.tbpnickel.com/storage/images/old/images/31072025_HN_Photo Harita Saruma_35_11zon.jpg"> 
With a spirit of collaboration and shared learning, Harita Saruma continues to nurture creative talents within the company while strengthening the role of Insan Harita as positive ambassadors in the digital world.

Harita Saruma Batch II: Harita Employees Collaborate to Create Engaging Visual Social Media Content 

Kawasi, South Halmahera – The Faculty of Medicine and Health Sciences at Khairun University (FKIK Unkhair), in collaboration with Harita Nickel, organized a series of free health check-ups and hypertension education programs for residents in the communities surrounding the company’s operational area in Kawasi Village, Obi Island. Held from August 5 to 9, the initiative reflects the strategic partnership between academia and industry in promoting early detection and prevention of non-communicable diseases.
 
The FKIK Unkhair team, comprising lecturers, laboratory staff, and students, supported by Harita Nickel’s Community Development team, provided health screenings for 129 residents. Examinations included height and weight measurements, waist circumference, fasting blood sugar, blood pressure, kidney function, cholesterol (HDL and LDL), triglycerides, and anemia detection. Residents received detailed explanations of their results along with guidance on maintaining health to prevent chronic conditions.
 
“Previously, I believed that long-term use of hypertension medication could damage the kidneys, but I now understand it prevents complications,” said a resident living with hypertension for 10 years. Other participants also expressed appreciation for receiving comprehensive health services without having to travel outside Obi.
 <img alt="09082025 hn photo penyuluhan kesehatan edukasi ims oleh unkhair 13 11zon" src="https://api.tbpnickel.com/storage/images/old/images/09082025_HN_Photo Penyuluhan Kesehatan - Edukasi IMS oleh Unkhair_13_11zon.jpg"> 
The program concluded on August 9 with a health education session titled Recognize and Prevent Hypertension, delivered by Dr. Nur Upik En Masrika, M. Biomed, head of the FKIK Unkhair team. The session covered causes, risk factors, symptoms, and preventive measures for hypertension, including a healthy diet, exercise, and regular medical check-ups.
 
Dr. Liasari Armaijn, M.Kes., Dean of FKIK Unkhair, acknowledged Harita Nickel’s full support. “Collaborations of this nature allow us to engage directly with the community, provide assistance, and offer practical health solutions,” she stated.
 
Supriyanto, Occupational Health and Safety (OHS) & Management System Manager at Harita Nickel, highlighted that this program is a follow-up to a Health Impact Assessment study conducted last year.
 
“In addition to partnering with Unkhair, Harita Nickel implements similar programs biannually. We are committed to ensuring that industrial growth aligns with improvements in the quality of life for surrounding communities,” Supriyanto added.
 <img alt="09082025 hn photo penyuluhan kesehatan edukasi ims oleh unkhair 51 11zon" src="https://api.tbpnickel.com/storage/images/old/images/09082025_HN_Photo Penyuluhan Kesehatan - Edukasi IMS oleh Unkhair_51_11zon.jpg"> 
For the residents, this marked their first opportunity to receive a comprehensive blood test free of charge. For FKIK Unkhair, the program provided a platform to apply medical expertise while strengthening community engagement.Through this initiative, FKIK Unkhair and Harita Nickel reaffirm their active role in creating healthier industrial communities that are aware of the importance of early health screenings and ready to adopt healthy lifestyle behaviors.

FKIK Unkhair and Harita Nickel Bring Free Health Check-ups and Hypertension Awareness to Obi Island

As part of its commitment to togetherness and the core value of teamwork, Harita Nickel’s Ternate Representative Office (KPT) Employee Gathering 2025 held its very first Employee Gathering on 10 August 2025 at Sulamadaha Beach, Ternate. Carrying the theme “Let’s Show that Harita Energy is Indonesia’s Energy”, the event became a valuable moment to strengthen relationships among employees outside of daily work routines..
The gathering was also part of the celebration for Indonesia’s 80th Independence Day. From HRGA, Security, Finance, Information Technology (IT), and Logistics to Government Relations, employees came together without position barriers, making the most of this rare opportunity to meet face-to-face.

<img alt="854a8734 11zon" src="https://api.tbpnickel.com/storage/images/old/images/854A8734_11zon.jpg" title="854a8734 11zon"><figcaption>The tug-of-war among KPT employees brought extra fun to this year’s employee gathering.</figcaption> 
A series of fun competitions became the highlight of the day, including a blindfolded bottle-finding challenge, water volleyball that sparked endless laughter, beach tug-of-war, and the crowd-favorite musical chairs. Some participants didn’t mind getting soaked if it meant helping their team win.

“This is KPT’s first gathering, and the enthusiasm from everyone is incredible. All the effort from the committee was worth it when I saw those happy smiles,” said Fajrin Sangaji, Event Committee Chair.

Event Coordinator Nurkhalizha Nazla Selang explained that the gathering was designed to encourage more personal interaction. “We all need a break to refresh our minds. Here, people who usually only communicate via email can chat and laugh together while enjoying the beach,” she said.

<img alt="854a9090 11zon" src="https://api.tbpnickel.com/storage/images/old/images/854A9090_11zon.jpg" title="854a9090 11zon"><figcaption>Apart from the games, the door prize session was a highlight eagerly awaited by everyone.</figcaption> 
Ternate Representative Office Manager, Dedi Hermansyah, emphasized that the main goal was to build synergy and collaboration, in line with Harita Nickel’s core values. “Moments like this help us better understand each department’s strengths and uniqueness, which in turn supports the company’s operational performance,” he explained.

For employees like Nurul Sheila Abdullah, the event was more than just entertainment. “It feels completely different. I’m going home with new energy, especially since moments like this don’t happen often,” she shared.

The excitement reached its peak with the door prize draw, welcomed with applause and cheerful shouts. With the calm blue waters of Sulamadaha in the background, employees went home not only with gifts but also with a stronger sense of togetherness.

Keeping Synergy and Collaboration Alive, Ternate Representative Office Holds 2025 Employee Gathering

As part of a wider commitment to sustainable mining practices, Harita Nickel has built and continues to operate a plant nursery facility that plays a crucial role in the post-mining reclamation process. The facility, named <a href="https://tbpnickel.com/id/media/kabar-obi/k3l/resmikan-loji-central-nursery-harita-nickel-buktikan-komitmen-keberlanjutan-lingkungan">Loji Central Nursery</a>, was inaugurated on January 30, 2025. Here, local and endemic plant seeds are sown and grown into seedlings ready for the regeneration of former mining areas. This facility is not merely an operational complement, but rather forms the basis for ecosystem rehabilitation, reforestation of disturbed land, and comprehensive environmental restoration.
<h3>What is a Nursery?</h3>
In general, a nursery is a place for processing seeds or other plant materials into seedlings ready for planting. Nurseries can therefore play a critical role in post-mining reclamation activities, as they are the first step in restoring land that has been disturbed by mining activities. Nurseries are not merely a complement to post-mining activities, but a fundamental step towards sustainable reclamation.

<h3>Facilities at Harita Nickel’s Loji Central Nursery</h3>
The Loji Central Nursery on Obi Island has been revitalized into a modern 2.8-hectare nursery facility with a capacity of up to 400,000 seedlings. This facility supports large-scale reclamation activities through a comprehensive, integrated structure. Some of the main facilities on site include:

1. Mother Plant House: A facility or area designated for seed germination and the collection of vegetative cuttings from mother plants.<img src="https://lh7-rt.googleusercontent.com/docsz/AD_4nXdMU7fTyqO61eoEzBZfCkxqrO6zu_N0RJ95CYgwAELNqLjXkCAjy_5J_QNj5D9fDqY3C84J0ptbS71LTlvUQV4tHe9KTLPQ_XJ8WI4E6n0B76vpur7H9oL2DDvTKIYQYnD_KvW0eg?key=qdpV7b5U2JNTK3p5daba3A" width="624" height="416" style="margin-left:0px;margin-top:0px;">2. Production House: A designated area for the preparation of growing media.<img src="https://lh7-rt.googleusercontent.com/docsz/AD_4nXdtkeabAe7r6x8vqQzxWXYKgJj0wfASECBee_s2NrqIOzXOvdHk7aO0T8kyxzJp5a-Clh9uqi7lecoqUy4C-nmsSshp1H7dk3bM92JABQuqG2vRG0Oecs0s0rBYFQ88C70iaCTpug?key=qdpV7b5U2JNTK3p5daba3A" width="624" height="416" style="margin-left:0px;margin-top:0px;"> 3. Rooting House: An area where plants propagated through vegetative or generative methods are acclimatized to optimize root development.<img src="https://lh7-rt.googleusercontent.com/docsz/AD_4nXenK19EHfeUgw0dNYnIbb4zirIAn5pB43uAXaVUCSY0ifjTOCpfVu74shjK3TfZlBeJ_fZYqdMTMM3QCyKPxc3ZH9veVA3Sl86qQ24Z6ppubwifU2UvwAgcp0Gx7cghcqnSETya?key=qdpV7b5U2JNTK3p5daba3A" width="624" height="416" style="margin-left:0px;margin-top:0px;"> 4. Shade House: A nursery area used for the acclimatization of seedlings to low-intensity sunlight.<img src="https://lh7-rt.googleusercontent.com/docsz/AD_4nXfIOOeBlQQmOTWQMrAYVNSYyyQQ4UWyx7715xfo9NGLz7q5TaZGgbJAltTI-NmBGJhZSGOvRSOjS5t436J2k2RjJcZnzHg1F0P-PFauI7VPWDmNddDfIc71iBrAQcHAQyX_2qUy?key=qdpV7b5U2JNTK3p5daba3A" width="624" height="416" style="margin-left:0px;margin-top:0px;">5. Open Area: A nursery area with an open layout used for acclimatizing seedlings to high-intensity sunlight.<img src="https://lh7-rt.googleusercontent.com/docsz/AD_4nXcRozvOjLqvQZ11EupR_uD7abAX4Lb7Bqh4rL9Pc3PAOH9cajf3VWWKaBgxS3eolIHadFWfK2YpafYVev-fYNf9EeuMWMCGaXTGZ26bTNZI6YkLg3Xb688iwNXNug0zY79lat6Bhg?key=qdpV7b5U2JNTK3p5daba3A" width="624" height="416" style="margin-left:0px;margin-top:0px;"> 6. Seed Storehouse: A storage facility for selected high-quality seeds.<img src="https://lh7-rt.googleusercontent.com/docsz/AD_4nXclJoI-nRq3rtqGrE3WVYg_ENE0o0219Oma2ykxKZvTosVylCK4SXvWp6S0sBXGQDJYuFYfgu9vcw7sXRqdi1TAaqYTYnw5KZuUAdU2ghsfwntTqDoUF_wkjLPFkN-nFX20GLS3ZQ?key=qdpV7b5U2JNTK3p5daba3A" width="624" height="416" style="margin-left:0px;margin-top:0px;"> 7. Fertilizer Warehouse: A place to store fertilizers and other nutrients which can support the growth of seedlings.<img src="https://lh7-rt.googleusercontent.com/docsz/AD_4nXd8gwbmbv6r4U9LyWrYgAGzEUbxeCanFEChRP8mKa3ZJMsiQpwroUzrplYnDX5ixRn7joMI7TAQhMPxtnhColC3C_uAVMZVnzTxrfmMb7x9MGW__F0vhZ9j1ajCGWxSctxXWd5LPg?key=qdpV7b5U2JNTK3p5daba3A" width="624" height="416" style="margin-left:0px;margin-top:0px;"> 
Aligned with Harita’s commitment to efficiency and minimizing environmental impact, all these facilities are supported by an automatic irrigation system, greenhouses, and the use of environmentally friendly materials repurposed from industrial waste (nickel slag).

<h3>Types of Plants Cultivated</h3>
To support the reclamation program, Loji Central Nursery develops a total of 29 plant species. These plants can be categorized into three main groups:

<h5>1. Pioneer Plants</h5>
Pioneer plants are fast-growing, resistant to extreme conditions, and help to initiate land restoration. Some examples of pioneer plants cultivated at the Harita Nickel nursery include the sea pine, sea sengon, and eucalyptus.

<h5>2. Local Plants</h5>
This group comprises vegetation that is native to the North Maluku region. These species have been chosen due to their adaptability to local climate and soil conditions. Examples include bintangur, marsawa, matoa, and gosale.

The use of local plants in the reclamation program is part of Harita Nickel's environmental initiative, which emphasizes the importance of biodiversity conservation. This step not only strengthens the native ecosystem around the mine area; it also reflects the company's commitment to maintaining natural balance through a sustainable approach based on local wisdom. In addition to supporting post-mining environmental regeneration, the use of at least 40% local species demonstrates a focus on more effective and harmonious ecological adaptation to local conditions.

<h5>3. Multi-Purpose Tree Species (MPTS)</h5>
Fruiting plants and other MPTS are developed to provide additional benefits, such as fruit that can be utilized by the local community and can support the presence of fruit-eating fauna. This includes jackfruit, cempedak, rambutan, cashew, and matoa.

<h3>Harita Nickel Nursery Targets</h3>
<h5>1. Supporting Post-Mining Reclamation
</h5>
This nursery provides quality plant seedlings to support the process of revegetation in mining areas where mining activities have been completed.

<h5>2. Biodiversity Conservation
</h5>
Plant species such as the sea pine, johar, sengon, red jabon, canary, cashew, and others have been selected to create an ecosystem that mirrors natural conditions.

<h5>3. Faunal Ecosystem Restoration
</h5>
By planting fruit trees such as rambutan, jackfruit, matoa, and others, the nursery also supports the return of fruit-eating fauna, which are essential for ecosystem balance.

<h5>4. Commitment to Compliance
</h5>
This nursery was built in accordance with Presidential Regulation No. 77 of 2024 concerning the acceleration of nursery development in mining areas, and Ministerial Decree No. 1827 K/30/MEM/2018 concerning good mining practices.

<h5>5. Empowering Local Communities
</h5>
As many as 40% of the reclamation plants are local species, the procurement of which involves the local community through a combination of seed production, fertilizer production, and land maintenance.

Harita Nickel’s plant nursery demonstrates that modern mining practices can be carried out responsibly and sustainably. By implementing cutting-edge technology, ecosystem-based reclamation techniques, and a commitment to environmental conservation, Harita Nickel has positioned itself as a pioneer in mine reclamation. This extends beyond mere compliance with regulations, by offering a vision for Indonesia's environmental future.

A Closer Look at Harita Nickel's Plant Nursery Facilities for Post-Mining Reclamation

In the metal processing industry, and particularly nickel, the ore smelting process produces a waste material known as slag. Nickel slag has long been considered a useless byproduct of nickel processing. However, with the advent of new technologies and growing awareness of the importance of sustainability, nickel slag is now being utilized as a high-value alternative raw material. From construction to reclamation materials, nickel slag has significant potential to be processed into products that support a circular economy.
Utilizing nickel slag is a strategic step towards reducing environmental impact, lessening the volume of processing waste, and opening up new opportunities in post-mining management. In Indonesia, several mining companies are beginning to seriously implement this approach&mdash;including Harita Nickel, known as a pioneer in productive and environmentally friendly nickel slag processing.

<h3>What is Nickel Slag?</h3>
Nickel slag is a byproduct of the nickel ore smelting process, specifically the production of ferronickel. Slag is formed from elements that do not melt with the primary metal&mdash;such as silica, alumina, and magnesium&mdash;and which then solidify after cooling.

Slag is invariably considered to be industrial waste. However, if properly managed, it can offer great potential as an alternative construction material, an aggregate substitute, and even as a concrete admixture.

<h3>The Potential of Nickel Slag as a Valuable Product</h3>
With increasing awareness of industrial efficiency and sustainability, nickel slag is now used in various sectors, such as:

<ol><li>Environmentally friendly building materials (paving slabs, concrete blocks, concrete)</li><li>Aggregate replacement in road construction</li><li>Mixed materials for the construction of infrastructure</li><li>Engineered planting media for reclamation and revegetation</li></ol>
With proper processing, nickel slag can not only reduce the volume of mining waste, but also become a source of high-value materials with a positive environmental impact.

<h3>How Does Harita Nickel Manage and Utilize Nickel Slag?</h3>
As a nickel mining and processing company that upholds the principles of sustainable mining,<a href="https://tbpnickel.com/id/media/kabar-obi/k3l/sustainable-innovation-harita-nickel-utilizes-nickel-slag-to-improve-soil-quality-in-reclamation-areas"> Harita Nickel maximizes the potential of nickel slag</a> to support operational activities while protecting the environment.

<h5>1. Utilization of Slag for Internal Construction</h5><img alt="Batako" src="https://api.tbpnickel.com/storage/images/old/images/Batako.jpg">
Nickel slag produced from the processing facility is used to produce construction materials such as paving blocks, concrete blocks, and mixed concrete.

A specific example of this application is the construction of the Loji Central Nursery, a plant nursery facility used for reclamation. The nursery was built with 24,000 paving blocks, 146,000 concrete blocks, and 441 m³ of concrete, all produced using recycled nickel slag.

This initiative demonstrates that slag is not simply waste, but an innovative construction material that can strengthen the company's infrastructure while also reducing its carbon footprint.

<h5>2. Supporting Environmentally Friendly Reclamation Programs</h5>
Slag is also an integral part of reclamation programs for former mining sites. Harita Nickel uses slag material in the following ways:

<ol><li>To improve the structure of reclaimed land</li><li>To help stabilize revegetation areas</li><li>To improve access and build supporting infrastructure in reclamation areas</li></ol>
This utilization is carried out in an integrated manner, and in line with good mining practices (GMP).

<h5>3. Sustainable Innovations in Waste Management</h5>
Harita Nickel continues to research and develop innovations to expand the use of slag, including its potential applications in the national construction industry. This approach aligns with:

<ol><li>The principles of a circular economy</li><li>The reduction of industrial waste</li><li>The efficient utilization of resources</li></ol>
<h3>The Economic and Environmental Benefits of Slag Utilization</h3>
Harita Nickel's utilization of nickel slag doesn’t just provide an innovative solution for industrial waste management&mdash;it also offers a range of positive sustainable impacts. Previously considered a waste product from the smelting process, slag is now reused for various purposes, including as a building material. This approach lowers production costs, while also significantly reducing the volume of solid waste that must be landfilled. Furthermore, the use of slag in infrastructure development supports greener and more environmentally friendly development. The economic value of this smelting waste also increases, making it part of a broader value chain. This utilization aligns with applicable environmental and mining regulations and strengthens the company's image as an industry player committed to ESG (Environmental, Social, and Governance) principles.

Nickel slag is not simply waste, but a hidden asset that can be transformed into high-value products&mdash;if managed wisely. Harita Nickel is a clear example of how a mining company can implement sustainable innovations, by transforming slag into useful materials and thereby contributing to environmental recovery.

By continuing to develop processing technology and expanding the use of slag in operational and reclamation activities, Harita Nickel underscores its role as an industrial player that is not only efficient, but also committed to being responsible for the future of the Earth.

Getting to Know Nickel Slag: The Nickel Processing Byproduct That’s Becoming a High-Value Product

Harita Nickel has solidified its role as a pioneer in Indonesia’s electric vehicle battery materials industry by upholding a strong commitment to sustainable operations. Residual materials from the High Pressure Acid Leaching (HPAL) process are managed in a dedicated and environmentally safe manner, and even reused for operational needs.
Tailing, a byproduct of the extraction process for Nickel (Ni) and Cobalt (Co) from limonite ore, takes the form of slurry—a thick mixture of solid particles and liquid resembling mud. There have been circulating allegations claiming that Harita Nickel pollutes the environment by dumping tailings into the sea, with even more alarming claims that these tailings contain heavy metals and toxic substances.
In reality, Harita Nickel manages tailings from the HPAL process by solidifying them through a&nbsp;Dry Stack Tailings Facility (DSTF). First, the tailings are neutralized to eliminate any toxins resulting from acid leaching. Then, the solid and liquid fractions are separated using a filter press. The liquid portion is further treated in a&nbsp;Wastewater Treatment Plant (WWTP), while the solid fraction (dry tailings), with a moisture content of about 30%, is compacted and placed in former mining areas to ensure ground stability.
This DSTF method of tailings management was first implemented in Indonesia by Harita Nickel. The operational costs are far from cheap.&nbsp;For illustration, with an annual tailings output of 8.6 million tons from the HPAL plant operated by&nbsp;PT Halmahera Persada Lygend (HPL), a total of 300 workers are employed across five divisions: Geotechnical Engineering, Hydrology &amp; Hydrogeology, Tailing Facility Planning, DSTF Earthwork, and Leachate Treatment Plant.
<figure><img title="Filter press dstf" src="https://api.tbpnickel.com/storage/images/old/images/Filter Press DSTF.jpg" alt="Filter press dstf">
<figcaption>Filter press used to separate solid and liquid fractions of HPAL tailings</figcaption>
</figure>

<blockquote>“The biggest challenge is the high rainfall, especially given the open area,” Nanang Koswara, DSTF Earthwork Supervisor, explained.</blockquote>
So what happens to the dry tailing placement areas when it rains, given they are in open spaces? The tailings placement facility is equipped with drainage systems, leachate collection ponds, buttresses (retaining walls), groundwater monitoring wells, and tools to monitor water quality and soil stability.
In areas with high rainfall, maintaining the slope stability of tailings piles is essential, as the dry tailing material is sensitive to water content changes. To ensure that the piles remain stable and safe, the Geotechnical Division team constantly monitors compaction levels, controls the geometry of the piles, and provides recommendations on safe placement zones for tailings.

<img class="n1ed--selected" style="cursor: pointer; max-width: 100%; height: auto;" src="https://api.tbpnickel.com/storage/images/old/images/image2.jpg" alt="Image2">
The geotechnical team conducting soil stability measurements to ensure the ground can support the tailings pile securely.
<blockquote>“In addition, routine daily monitoring by the geotechnical team is conducted to mitigate potential landslide risks early on. We are committed to ensuring that dry tail placement operations remain safe and smooth,” said&nbsp;Agus Budi Prastyo, Instrument &amp; Geotechnical Supervisor.</blockquote>
While heavy rainfall can benefit the nickel laterite formation process, it also demands special handling of runoff and groundwater—especially in dry tailing storage areas. Improper handling can lead to landslides and environmental contamination.
This is where the&nbsp;Hydrology &amp; Hydrogeology team&nbsp;plays a key role—ensuring runoff water is managed properly and does not interfere with tailings placement activities. Despite high rainfall, operations continue safely and remain free from pollution risks.
<blockquote>“Water quality monitoring is conducted daily at both the inlet and outlet. The testing includes metal content, in situ parameters, and laboratory tests by an external lab,” explained&nbsp;Rahma Maulida, Laboratory Assistant Engineer of the Leachate Treatment Plant Division.</blockquote>
<img style="cursor: pointer; max-width: 100%; height: auto;" src="https://api.tbpnickel.com/storage/images/old/images/image3.jpg" alt="Image3">&nbsp;
The Leachate Treatment Plant team monitors water in the leachate treatment pond to ensure it meets environmental quality standards before discharge.
Amid the 24-hour operations and the high-risk potential, particularly regarding environmental contamination, there’s something else that keeps the DSTF team united.
<blockquote>“What makes us stay is the sense of family we’ve built. For example, after work we often eat together at the canteen,” shared Rahma. Leadership that fosters trust is also key. "We are given the space and responsibility here," Agus concluded.</blockquote><script src="https://cdn.flmngr.com/widgets.js?apiKey=FLMNFLMN" data-ts="1784620829484"></script>

Turning Tailing into Opportunity

In commemoration of the International Day Against Drug Abuse and Illicit Trafficking (HANI) on June 26, 2025, Harita Nickel reaffirmed its strict zero-tolerance policy toward the abuse of narcotics, psychotropics, and other harmful addictive substances (drugs). This commitment is part of the company's broader efforts to foster a healthy, safe, and drug-free working environment across all operational units.
Yohanes, Deputy Head of HRGA at Harita Nickel, emphasized the company’s full support for government initiatives aimed at preventing and eliminating drug abuse. “Our zero-tolerance policy is not designed to punish employees, but rather to protect everyone’s safety and maintain a productive and conducive work environment,” Yohanes explained.

As part of this commitment, Harita Nickel actively conducts anti-drug campaigns through routine education and regular drug tests at its operational sites. Recently, PT Halmahera Persada Lygend (HPL), PT Obi Nickel Cobalt (ONC), and PT Dharma Cipta Mulia (DCM) conducted urine tests involving approximately 200 randomly selected employees from various departments. Similar initiatives have previously been implemented by PT Megah Surya Pertiwi (MSP).

"This initiative is a continuous effort to ensure that our workplace remains safe, healthy, and free from drug abuse. In the future, we plan to gradually expand testing to cover all employees,” Yohanes added.

Harita Nickel’s site doctor, dr. Dominicus Bintang Mahardhika Jati, explained that workers in extractive industries such as mining often face significant physical and mental pressures. Therefore, regular education and drug screenings are crucial preventive measures. “We continuously educate our employees about the risks of drug abuse and the importance of maintaining optimal physical and mental health to safely perform daily tasks,” said dr. Dominicus.

Taufik Setiadji, Industrial Relations Manager at Harita Nickel, reiterated the company’s firm stance against any form of illicit substance abuse. “Our internal regulations explicitly prohibit employees and contractors from bringing, possessing, using, or distributing drugs within our operational areas,” Taufik affirmed.

He added that a healthy work environment isn’t just about good facilities, it also depends on the commitment of each person. By promoting a drug-free culture, Harita Nickel wants to create a safe and productive workplace for all.