Resources

With over 40 years of continuous growth, STS Group has consistently evolved to meet the changing demands of the business landscape. Today, we are a dynamic, multinational company employing over 9,000 skilled professionals across a variety of disciplines.

Our headquarters are located in a state-of-the-art 4,000 sqm office building in Madinat Al Sultan Qaboos, Muscat. Additionally, we maintain offices in the UAE, Bahrain, Saudi Arabia, Qatar, and Kuwait to support our regional operations. To ensure the well-being of our team, we have strategically placed accommodation and dining facilities in all of our operational areas.

With an impressive fleet of over 3,200 construction machines, plant equipment, and vehicles, the STS Group is well-equipped to take on a wide range of projects. We also operate specialized manufacturing facilities across Oman, UAE, and Saudi Arabia, covering a total area of approximately 210,000 sqm.

Manufacturing Facilities

Workshop Facilities

  • Plot Area : 100,000 Sq.Mtrs
  • Covered Area : 15,000 Sq.Mtrs
  • Once Area: 1200 Sq.Mtrs
  • No of Bays: 6 Nos

Experience in Product categories

  • Vessels – ASME Div.1- U Stamped/ Div.2 – U2 Stamped.
  • Vessel Strip Cladding Facility
  • 2 & 3 Phase Production / Test Separators
  • Shell & Tube Exchangers
  • Skids Packages GDU Packages, Well hook up skids, CSS Manifolds / FGC skids
  • Strainers/ Filters
  • Piping pre-fabrication
  • Orifices Plates and Assembly – incl. Multistage
  • Pumps & Valve Maintenance Services

Certification

  • ISO 9001: 2015
  • ISO 14001: 2015
  • ISO 45001: 2018
  • ASME Approvals – U, U2 & S
  • National Board Approvals – NB & R

Inspection and Testing Facilities

  • PMI Testing by OES & XRF
  • Hardness Testing
  • Ultrasonic Testing
  • Boroscope Unit
  • Ferritescope
  • Dynamic Balancing Machine
  • Test Bench for Isolation valves
  • Calibration & Test bench for Relief Valves
  • Pressure & Temp. Recorders

Current Production Capacity

  • 950,000 Std inch Dia. Year of Piping
  • 6000 MT Vessels & Equipment/ Year

Welding Capability

  • Alloy 625 (Inconel)
  • Alloy 825 (incolloy)
  • Monel 400
  • Hastelloy
  • Ferritic Stainless Steel
  • 6 Mo
  • Super Duplex Stainless Steel
  • Duplex Stainless Steel
  • Stainless Steels 316, 304, 310
  • Low Alloys P11, P22 & P91
  • Low Temperature Carbon Steel
  • Strip Cladding (Single & Two Layers) with Strips up to 120mm Wide

Workshop Facilities

  • Plot Area : 25,700 Sq.Mtrs
  • Covered Area : 15,000 Sq.Mtrs
  • Once Area: 1200 Sq.Mtrs
  • No of Bays: 6 Nos

Welding Capability

  • Alloy 625 (Inconel)
  • Alloy 825 (incolloy)
  • 6 Mo
  • Hastelloy
  • Super Duplex Stainless Steel
  • Duplex Stainless Steel
  • Stainless Steels 316, 304, 310
  • Low Alloys P11, P22 & P91
  • Low Temperature Carbon Steel
  • Aluminium

Certification

  • ISO 9001: 2015
  • ISO 14001: 2015
  • ISO 45001: 2018
  • ASME Approvals – U, U2, S & PP
  • National Board Approvals – NB & R

Inspection and Testing Facilities

  • PMI Testing by OES & XRF
  • Hardness Testing
  • Ultrasonic Testing
  • Boroscope Unit
  • Ferritescope
  • Test Bench for Isolation valves
  • Calibration & Test bench for Relief Valves
  • Pressure & Temp. Recorders

Current Production Capacity

  • 450,000 Std inch Dia. Year of Piping
  • 3,600 MT Vessels & Equipment/ Year

Experience in Product categories

  • OTSG Units
  • HRSG Units
  • Vessels – ASME Div.1- U Stamped/ Div.2 – U2 Stamped
  • Shell and Tube Heat Exchanger
  • 2 & 3 Phase Production / Test Separators
  • Skid Packages – RO Modules / MSV Skids /CI Skids/ Manifolds
  • Strainers/ Filters
  • Piping pre-fabrication
  • Aluminium Bus bar/ other Aluminium Fabrications
  • Valves Maintenances / Testing
  • Retubing & Refurbishment of heat transfer equipment
  • Piping Headers/ Collectors for Desalination plants

Workshop Facilities

  • Plot Area : 80,000 Sq. Mtrs
  • Covered Area : 12,000 Sq. Mtrs
  • Office Area:  500 Sq. Mtrs
  • No of Bays:  4 Nos

Experience in Product categories 

Manufacture of

  • Clad Line Pipes using the weld overlay process, ranging from 8” to 50” diameter in 12-meter lengths (DRL)
  • Clad Fittings (2” and above)
  • Clad Flanges (2” and above)
  • ASME Code Clad Nozzles (2” and above)
  • Fully Clad Spools and Piping Fabrications
  • Clad Oil Field Equipment, including tubing head spools, adaptors, casing/tubing hangers, etc. Cladding of Pressure Vessel Shells and Dished Heads
  • Pressure Vessels
  • Skids

Current Production Capacity

  • 500,000 Std Inch Dia / Year
  • 51 MT Weld overlay / Month

Welding Capability

  • Alloy 625 (Inconel)
  • Alloy 825 (incolloy)
  • 6 Mo
  • Hastelloy
  • Super Duplex Stainless Steel
  • Duplex Stainless Steel
  • Stainless Steels 316, 304, 310
  • Low Alloys P11, P22 & P91
  • Low Temperature Carbon Steel
  • Aluminium
  • Cu Alloy

Certification

  • ISO 9001: 2015
  • ISO 14001: 2015
  • ISO 45001: 2018
  • API Certificate 5LD – 0086
  • API Certificate Q1 – 4097
  • ASME Approvals – U, U2 & S
  • National Board Approvals – NB & R

Inspection and Testing Facilities

  • PMI Testing by OES & XRF
  • Hardness Testing
  • Ultrasonic Testing
  • Boroscope Unit
  • Ferritescope
  • Pressure & Temp. Recorders
  • DP/MT
  • RT
  • Blasting Profile
  • Paint DFT
  • Pneumatic Test for RF Pads

Our Workforce: A Diverse and Empowered Team

With over 10,000 employees from 16 nationalities, our cultural diversity drives our commitment to excellence. We unite across differences, fostering a strong team spirit that is felt at every level, from leadership to field staff.

We provide real growth opportunities and promote from within, with many key staff members advancing through the ranks. Our internationally recognized training programs equip local employees with specialized skills, enhancing their career potential.

We believe in empowering our people with early responsibility, encouraging growth, and creating ample opportunities to succeed. Regardless of the challenges, our team remains dedicated to excellence.

Plant & Equipment

At STS Group, we are proud to have a dedicated and skilled team committed to delivering exceptional service across all our sites. Despite the challenges of the industry, our goal is to consistently exceed our customers’ expectations.

We manage a diverse fleet valued at over US $120 million, which includes:

  • Heavy Construction Equipment
  • Lifting Equipment
  • Static Equipment
  • Heavy Tractors and Trucks
  • Light & Commercial Vehicles

Our operational systems, programs, and procedures are built to meet rigorous performance standards. These have been tailored to meet the unique requirements of each site while ensuring productivity goals are met. Our services are designed to:

  • Maximize Productivity
  • Optimize Plant & Equipment
  • Provide 24/7 On-Site Support
  • Enhance Financial Performance

By adhering to OEM and DOT specifications, we ensure the longevity of our vehicles and equipment. Preventive and corrective maintenance is carried out in accordance with ECE norms to maintain the highest standards of quality and reliability.

Our central workshop is located in Muscat, Oman, and we also have 15 fully equipped workshops across Oman, Bahrain, and Qatar to support our operations.