Fabrication & Construction

is accredited with all of the ISO certifications the industry offers, and adheres to all API 6A, 6D, and 16A standards, as well as the ASME U, U2, S, PB, and R stamps and NB registrations. It is committed to providing its clients with the highest possible quality and the most cost-effective solutions, and while creating customer relationships that are founded upon mutual respect, professionalism, and integrity. AOTC is dedicated to exceeding expectations, and today it is recognized as a leading EPC Contracting, Manufacturing and Maintenance company in Oman.

Our facilities are world class, and our ability to manufacture and process equipment for domestic and international markets is second-to-none. A global player in the high-end manufacturing of upstream, mid-stream, and downstream Oil and Gas materials, machinery, and manufacturing, AOTC’s leading fabrication facilities are global leaders from here in Oman.

More than two decades worth of exceptional product and service delivery, and the strength of our subsidiaries, make AOTC your leading choice in the field, by reputation and expertise.

AOTC fabrication area is greater than 15,000 m2, and incorporates the very latest technologies and practices in its manufacturing. Fully automated welding and in-house special purpose machinery make our facilities the best in the region.

Fabrication & Construction


  • EPC project contracting (Either stand alone or as JV)
  • EPC of Oil and Gas Pipelines/Pump stations
  • Design and fabrication of Pressure Vessels, HPT Separators, Fuel Line System
  • Fabrication of Flare/Exhaust Stack
  • Design & Fabrication of Pig Launcher/Pig receiver & Handling System
  • Fabrication of Metering & Multi Flow Separation Skid
  • Fabrication of Stainless Steel, Duplex Steel, Haste alloy, Inconel Piping
  • EPC of Tanks, Silos, Heavy & medium Structures & Pipe racks
  • Lifting solutions, installation, testing & Commissioning of EOT Crane
  • Chemical cleaning of Carbon & Stainless pipeline, valve servicing, Machining etc


  • Tanks, Silos, Skid Pipping, Pressure Vessels & Steel Structure - Wtp Lot-4 Mukhaizna
  • Mechanical Construction of Musandam Power Plant (Capacity 120 MW) including fabrication and installation of exhasut stacks
  • Steel Structure - Pdo/Zauliyah Gas Plant Project
  • Pipping - Sohar Refinery Improvement Project (Srip)
  • Chilled Water Pipping- Development Of Muscat International Airport (Mc1 & Mc3)
  • Tanks - Epc For Bulk Storage Tanks For Diesel – 1500 Cum Raeco
  • Tanks - Epc For Thermal Energy Storage Tank – Military Tech College
  • Pipline –Orpic Effluent Pipeline System
  • Pipline -Upgrade Of Fuel Line System – Masirah Island
  • Pipline - Modification Of Fcw Pipeline Project – Omifco
  • Test Separators
  • Skids- Test Separators Pdo
  • Air Accumulator - Fabrication & Supply Of Instrument Air Accumulator
  • Fabrication Of Marine Buoys
  • Supply, Installation & Testing Of 35 Ton Capacity Crane

Design, Supply, Internal & External Coating, Installation, Maintenance and Repair of Pressure Vessels, Boilers and Separators

Internal & External Coating and Assembling of WSF & SAC Vessel and process skid.

Internal & External Coating and Assembling of Silos

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