About Sigma
Sigma Cylinders


Our Vision

Safe LPG cylinder for every use. 

Our Mission

To create a positive impact on people’s daily life by making the safest LPG cylinder accessible for every use. 

Our Values

We value Operational Excellence: Our culture and mindset are focused on embracing business principles and tools to create sustainable improvement with Sigma Cylinders’ operations.

Work-life balance – Empowerment – Competence Development – Collaboration

We are committed: At Sigma Cylinders, we are committed to delivering the safest products with the highest quality.

Seriousness – Sincerity – Affection – Loyalty – A sense of ownership – A sense of obligation

We care for all: The true sense of caring for the communities. While caring about the environment, we cater to our communities’ energy needs.

Employees – Communities – Environment

Sigma Academy
LPG Cylinders Production Capacity

Annual capacity, customisable

and various sizes & shapes


And continuously growing to offer

opportunities in all local communities

ISO Certifications

Processes that comply with all

norms and standards


Leading the industry


Expertise from around the world


Lebanon - Ivory Coast

Ghana - Iraq

Sigma Cylinders sets itself apart through its diligent and systematic process to offer continuously superior quality. The core business thus follows a uniquely precise and efficient model and a meticulously selective refurbishment procedure. 
Following the strict standards and guidelines set by international certified bodies, the Sigma Cylinders manufacturing process is particularly exhaustive, starting with the controls upon receipt of the raw material and all the way to delivering its quality products.
Following the strict standards and guidelines set by international certifying bodies, the Sigma Cylinders refurbishment process is particularly exhaustive, starting with the controls upon receipt of the raw material and all the way through to delivering its quality products.

From portable, small cylinders to large household or commercial units, the Sigma Cylinders product line is extensive and highly adaptable to client requirements and requisite standards and norms. Based on the client’s preferences, the type of handle, foot, valve, final coat color and silk printing can be customized. Requiring less steel, less heating and less crude, the low-weight products fall within the framework of Sigma Cylinders' commitment to environmental action.

Offering a range of LPG cylinders from 3 KG to 50 KG depending on client requirements.


In its continuous quest to provide clients with a full range of products and services. Sigma Cylinders has partnered with the market’s best to offer accessories and services that complement LPG cylinders.

Sigma Academy
At Sigma Cylinders we believe that continuous learning leads to guaranteed growth.
The Academy was developed as a training system covering three programs dedicated for:

To Improve skills reducing defects in a safe environment.

To developing technical, leadership, and planning skills.

To create awareness campaigns and promoting the shift towards clean energy.
Sigma Academy
July 1, 2021
Sigma Cylinders new plant official opening event in Abidjan, Ivory Coast IN
Under the Patronage of His Excellency Minister of Industry and Commerce in Abidjan, Mr. Souleymane Diarrassouba, Sigma Cylinders inaugurated the new plant located at the PK24, Industrial Zone. The new Sigma Cylinders Abidjan Plant built area is 10,000 sqm and encompasses 400+ employees servicing more than 5 major clients in Ivory Coast and the neighboring countries. The plant has a manufacturing capacity of 2 million cylinders annually, with a wide range of cylinders of different sizes starting from 6kg to 50kg. Moreover, the plant is equipped to do cylinder refurbishment, in addition to cylinder accessories and LPG filling stations. During the inauguration, Mr. Mohammad Jaber - Sigma Cylinders GM highlighted the positive impact that this plant will bring to the region in terms of accelerating the economical cycle, creating work opportunities, and facilitating the shift toward clean energy.
July 13, 2022
How can traceability improve the quality and safety of the manufacturing process?
When confronted with a buying decision, customers don’t just look at the price or the label of the product to make up their minds, there are 2 factors highly considered in this process: Quality & Safety.When we talk about LPG cylinders, these 2 attributes can’t be overlooked, because the lives of the people depend on them!Some nations like Tanzania, Ivory Coast, and Ghana had their share of suffering after massive LPG cylinder explosions in a record time, leaving a question mark about the manufacturing process.The truth about this process is that it can only be measured, tested, and rated; monitored, improved, and sustained by the traceability process!Read more https://www.linkedin.com/pulse/how-can-traceability-improve-quality-safety-manufacturing-/
August 28, 2023
Understanding the Importance of Quality LPG Cylinders in Modern Industries
Liquefied Petroleum Gas (LPG) has become a versatile energy source used across various sectors, including residential, commercial, and industrial applications. This clean-burning fuel source has gained immense popularity due to its low environmental impact and affordability. At the core of a stable LPG distribution system lies the efficiency and quality of its storage and transport containers, namely, the LPG cylinders.  In the world of contemporary energy management, LPG cylinders play a monumental role. Industries across varied sectors rely on them to power their operations, be it in agriculture, hospitality, automotive, or food production. The quality of these LPG cylinders, however, is crucial to avoid supply disruptions and potential safety hazards. High-quality cylinders ensure the safe storage and transport of LPG, guaranteeing minimal risks of leakage or accidents. Choosing a reliable LPG cylinder manufacturer can be a game-changer for businesses and industries, ensuring a steady fuel supply and optimum safety.  In this comprehensive guide, we will delve into the various factors highlighting the importance of quality LPG cylinders for modern industries, how to select the right LPG cylinder provider, and how Sigma Cylinders can cater to your business's LPG requirements. Stay tuned to discover the key insights and make an informed decision for your organization's energy needs. Safety Considerations in LPG Cylinder Selection Safety is of paramount importance when it comes to the usage of LPG cylinders in various industries. High-quality cylinders ensure secure storage, transportation, and handling of the fuel, minimising the risk of accidents. For instance, choosing cylinders with robust construction and corrosion-resistant materials safeguards against leaks and premature wear and tear. Adhering to international safety standards allows businesses to create a safer working environment while simultaneously mitigating the potential hazards associated with LPG handling. Sigma Cylinders prioritises safety by investing in cutting-edge manufacturing technologies and maintaining strict adherence to industry regulations. Their LPG cylinders comply with the European TPED and ADR/RID guidelines, guaranteeing top-notch safety performance. By partnering with a reliable LPG cylinder manufacturer like Sigma, businesses can instil confidence in their employees and clients, enhancing reputation and operational efficiency. Impact of Quality LPG Cylinders on Operational Efficiency Efficient operations are essential for industries to remain competitive and cost-effective. High-quality LPG cylinders can contribute to this goal by ensuring a consistent fuel supply with minimum disruptions. For example, cylinders with accurate pressure regulators and functional valves facilitate smooth and controlled LPG flow, reducing the chances of overconsumption or fuel wastage. Additionally, well-maintained LPG cylinders require less frequent maintenance, preventing untimely downtime and associated costs. Sigma Cylinders recognises the importance of operational efficiency for modern businesses and strives to deliver a range of LPG cylinders catering to diverse needs. From small portable cylinders to large-capacity ones, their products are manufactured using state-of-the-art processes and materials, ensuring durability and reliable performance. By opting for Sigma's top-grade LPG cylinders, businesses can boost their operational efficiency and reap substantial long-term benefits. Affordability and Factors Affecting LPG Cylinder Costs While the initial investment in high-quality LPG cylinders may seem expensive, it can potentially lead to cost savings in the long run. Cylinders that boast robust construction and durable materials offer extended service life, cutting down on frequent replacement expenses. Moreover, efficient LPG cylinders with precise valves and regulators can optimize fuel consumption, leading to reduced overall energy costs. Sigma Cylinders’ strong focus on quality and efficiency enables businesses to enjoy cost-effective LPG management. Their manufacturing excellence, backed by international certifications like ISO 9001, ensures that industries receive products that are built to last and perform optimally. In addition, Sigma Cylinders operates in the Middle East and the African Continent, giving them a competitive edge by providing regional, cost-efficient supply chain solutions for diverse industries. Environmental Benefits of High-Quality LPG Cylinders In an era of heightened environmental concerns, the shift towards cleaner, more eco-friendly energy sources has become increasingly vital. LPG is often chosen due to its low emission profile compared to traditional fossil fuels. Coupled with this is the significance of selecting top-quality LPG cylinders from environmentally responsible manufacturers, minimizing the likelihood of fuel leaks and improper disposal. Sigma Cylinders is committed to environmental stewardship by ensuring its products are manufactured responsibly and in line with international regulations. By sourcing LPG cylinders from suppliers like Sigma Cylinders, businesses can join the global sustainability movement, reducing their environmental impact and meeting their corporate social responsibility goals. In turn, this can bolster brand image and consumer loyalty, driving growth and success. Conclusion High-quality LPG cylinders are essential for modern industries that strive for safety, efficiency, profitability, and environmental responsibility. By understanding the importance of these factors and sourcing LPG cylinders from suppliers who priorities environmental stewardship, businesses can contribute to global sustainability goals. Sigma Cylinders, as a leading LPG cylinder manufacturer and supplier in the Middle East and the African Continent, offers an exceptional range of top-quality LPG cylinders, helping industries meet their energy management goals effectively. We demonstrate our commitment to ecological responsibility by manufacturing cylinders in compliance with international standards, such as the ISO 9001 quality management system and European TPED and ADR/RID regulations. With our premium LPG cylinders, industries can experience enhanced performance, reduced maintenance costs, and ultimately, increased profitability. Let us help businesses embrace the power of a cleaner, versatile energy source and experience a marked improvement in their overall performance and growth prospects.  Contact us today to get a free quote! 
Sep 15, 2023
Exploring LPG Cylinder Manufacturing: Processes & Quality Assurance
As Liquefied Petroleum Gas (LPG) continues to grow in demand across numerous industries, the need for high-quality, durable, and safe LPG cylinders has never been more crucial. By understanding the manufacturing processes and quality assurance measures taken by leading LPG cylinder manufacturers, businesses can better appreciate the value of investing in premium LPG storage solutions. In this blog, we will shed light on the manufacturing journey of LPG cylinders, exploring the processes that ensure their safety and durability while focusing on how Sigma Cylinders, one of the largest LPG cylinder manufacturers in the Middle East and the African Continent, upholds stringent quality standards in their production. From a safety standpoint, LPG cylinders serve as a critical component in industries that extensively use LPG as a fuel source. They must be manufactured to resist extreme temperature fluctuations, corrosion, and physical damage while maintaining their structural integrity under high pressure. Combining modern engineering practices with robust materials and rigorous quality control checks, LPG cylinder manufacturers like Sigma Cylinders produce high-quality products that meet these stringent safety demands. To achieve optimum efficiency and quality, the manufacturing process is divided into different phases, from raw material selection, forming, assembly, heat treatment, painting or coating to hydraulic testing and final inspection. Each stage of production is strictly monitored to ensure that any defects or anomalies are promptly addressed, contributing to the overall structural integrity and performance of the finished product. Sigma Cylinders takes pride in their unwavering commitment to manufacturing excellence and quality assurance, demonstrated by their adherence to international standards like the ISO 9001 quality management system and European TPED and ADR/RID regulations. As a result, industries that rely on LPG as a fuel source can have complete confidence in the safety and performance of the cylinders they procure from Sigma. In the coming sections, we will delve into the intricacies of LPG cylinder manufacturing, exploring the multiple stages of production, quality assurance measures, and their significance in delivering safe and efficient fuel storage solutions. This comprehensive guide will enable businesses to make informed decisions when investing in LPG cylinders and understand the value that leading manufacturers like Sigma Cylinders bring to the table. Raw Material Selection and Importance of High-Quality Materials The foundation of an enduring LPG cylinder lies in the selection of its primary raw material – steel. The quality of the steel not only impacts the cylinder's structural strength but also determines its ability to withstand corrosion and extreme temperature variations. To ensure maximum durability and safety, LPG cylinder manufacturers like Sigma Cylinders use high-quality steel with excellent physical and chemical properties. Investing in premium raw materials lays the groundwork for manufacturing a product that can effectively manage the high pressures associated with LPG storage. Furthermore, opting for corrosion-resistant steel ensures extended service life and reduces the need for frequent replacements, enhancing the overall cost-effectiveness of the LPG cylinder. Forming and Assembly: Transforming Raw Materials into Cylinders Once the appropriate steel material has been sourced, the next step involves forming – shaping the steel into the characteristic cylindrical shape of an LPG cylinder. This process typically employs a combination of techniques, such as hot and cold forming. The hot forming process heats the steel, making it more malleable, while the cold forming method preserves the steel's strength by exerting pressure without any heat treatment. The forming process is closely followed by the assembly, which involves connecting various parts like the base ring, collar, and shells, using welding techniques like arc, MIG, and TIG welding. The proper execution of these welding techniques is critical to the cylinder's structural integrity, ensuring that all components of the cylinder are securely fastened and that the cylinder can withstand high LPG pressures. Heat Treatment and Surface Finishing: Enhancing Durability and Corrosion Resistance Heat treatment refers to the process of heating, holding, and cooling a material to obtain specific mechanical properties. In the context of LPG cylinder manufacturing, heat treatment aims to enhance the cylinder's durability and resistance to deformation. During the heat treatment process, steel cylinders are subjected to elevated temperatures and quenching in a controlled environment to regulate their microstructure, resulting in a more robust and reliable finished product. After the heat treatment, surface finishing processes are employed to improve the cylinder's corrosion resistance and visual appeal. This stage includes applying a layer of anti-corrosion paint or coating, resolving minor imperfections on the cylinder surface, and conducting visual inspections to ensure an aesthetically pleasing product. Surface finishing is vital, as it significantly enhances the cylinder's resistance to rust, ensuring long-lasting performance. Quality Assurance Measures: Ensuring Safety and Compliance Stringent quality assurance measures are essential to guarantee the safety and effectiveness of LPG cylinders throughout their lifespan. Manufacturers like Sigma Cylinders adhere to comprehensive testing procedures at every stage of production, including radiographic or ultrasonic inspections to detect any flaws in welded joints, hydraulic pressure tests to ensure the cylinder can withstand its designated pressure, and periodic re-qualification to confirm cylinders meet industry standards. By conducting thorough inspections and testing, manufacturers like Sigma can ensure their LPG cylinders meet regulatory compliance like the ISO 9001 quality management system and European TPED and ADR/RID guidelines. These certifications provide industries with confidence in the safety, durability, and overall quality of the LPG cylinders they procure. Conclusion Understanding the intricate processes involved in LPG cylinder manufacturing and the importance of strict quality assurance measures allows businesses to appreciate the value behind investing in high-quality, durable, and safe LPG storage solutions. With a commitment to manufacturing excellence and adherence to international safety standards, leading LPG cylinder manufacturers like Sigma Cylinders provide industries with a reliable option for their fuel storage needs. The collaborative efforts of selecting appropriate raw materials, stringent forming and welding procedures, heat treatment, and surface finishing contribute to the creation of an LPG cylinder that businesses across various industries can rely on. Furthermore, rigorous quality control checks and industry compliance certifications demonstrate a manufacturer's dedication to ensuring their product's safety, performance, and longevity. By partnering with renowned LPG cylinder manufacturers like Sigma Cylinders, industries can reap the benefits of safe and efficient fuel storage, enabling them to maintain competitiveness in their respective sectors while adhering to environmental and safety standards.
CSR & Environment
March 24, 2022
We care about the environment and the well-being of the people.
Without initiatives, leaders are simply workers in leadership positions.Sigma Cylinders, under RJ Group Holding, has taken the shift towards clean energy and deforestation to a groundwork level where we have visited rural areas in East Africa, granted full sets of 6Kg cylinders to homes, and guaranteed the spread of LPG education and awareness among the beautiful families we have met. Sigma Cylinders took another great initiative in changing the whole environment for those families by replacing their homes with new ones having a fresh healthy start. Six new houses are on 60% of construction with expected delivery in 45 days. We operate in Africa and we will always assist in African growth and development. 
November 7, 2019
We recycle.
“Sustainability” is a pillar of our corporate strategy. In our core business, we have adopted the notion of facilitating the shift towards clean energy. But we did not stop here. We have also developed and implemented a strict recycling policy in all our manufacturing processes across our four plants Lebanon, Ivory Coast, Ghana and Iraq.As a first step, we have prepared a Recycling Program and determined the types of recyclable materials that are being discarded and the approximate volume per week and month. We have identified that we can recycle steel, nylon, wood, plastic, paper and water.Now, we are separating and capturing the recyclable material in dedicated recycling bins at the best locations to accommodate the collection process. We continuously talk to our employees to get their feedback on any suggestions for improvement.As with any program, our initial objective is to build the right habits quickly and try to blend the program with Sigma Cylinders corporate culture, employees, and existing routines as much as possible so that the new habits are much easier on the entire organization.Last but not least, the money collected from the recycling process, is given back to our communities through local charity organizations. 

At SIGMA, we believe that the heart of our success lies in the talents, passion, and dedication of our team members. As we continue to grow and innovate, we are constantly on the lookout for exceptional individuals who are eager to contribute to our dynamic and collaborative environment.

System Administrator
Assign and maintain user access.Install and maintain software.Respond to employee concerns relating to troubleshooting and issues.Develop training materials for employees guidance on system usage.Manage servers, network equipment, and other related IT infrastructure.
Executive Assistant
Provide administrative support and office management for the CEO which includes telephone coverage, mail handling, supplies control and necessary communications internally and externally.Resolve administrative problems and inquiries with concerned parties to ensure proper workflow.
People Experience Specialist
Maintain effective administration of employee records and files.Control employees time and attendance and handle their administrative requests.Handle the administration of insurance and NSSF processes.
Input accounting data, and conduct reconciliations to ensure accuracy of accounting records.
Production Supervisor
Oversee the day-to-day operations of the Production Sections by ensuring that all processes are being performed correctly and in accordance with company standards.Make sure that all employees are working together effectively to meet production goals while maintaining high standards of quality and safety.
QC Supervisor
Manage the inspection and testing of products, materials, and parts to ensure compliance with set quality standards.Carry out and implement systems and procedures that ensure product quality within the plant.
Data Entry Officer
Enter received data in appropriate formats to maintain accuracy of the Plant’s database.