SHENGG is accredited with several certifications and stamps from established issuing bodies with rigorous standards and codes. Through them, we continue to push our already high standards for quality, reliability and trust.

ISO 9001:2015

Issued by the International Organization for Standardization, ISO 9001:2015 specifies requirements for a quality management system, applicable to organizations of all types and sizes. It ensures consistent provision of products and services that meet the customer’s needs as well as statutory and regulatory requirements. It also aims to increase customer satisfaction through effective application and improvement of the system.

Joint Supplier Registration System ("JSRS") Oil & Gas, Oman


Joint Supplier Registration System (“JSRS”) Oil & Gas, Oman
The Joint Supplier and Registration Certificate is a mandatory requirement by the Ministry of Energy and Minerals for national and international suppliers bidding for any tenders or other procurement requests with oil and gas operators in Oman. 

ASME R Stamp

The R symbol stamp is offered by the National Board of Boiler and Pressure Vessel Inspectors for the alteration and/or repair of pressure vessels, boilers, and other pressure-retaining items.


The NB stamp ​​indicates that a pressure-retaining item has been constructed complying with the ASME Boiler and Pressure Vessel Code, and that it has been inspected by a qualified National Board Commissioned Inspector.

ASME U Stamp

The ASME U Stamp indicates that the design, construction, inspection, and testing of pressure vessels is in accordance with the latest regulations of the American Society of Mechanical Engineers (ASME). It ensures high quality as well as safety through ASME’s rigorous rules.

ASME U2 Stamp

The American Society of Mechanical Engineers issues a U2 Vessel Stamp for unfired pressure vessels that have been inspected and found to comply with acceptable construction methods under its alternative rules.  

ASME S Stamp

The S Stamp is offered if the manufacturing of power boilers and accessories is done in accordance with the American Society of Mechanical Engineers’ code.

Registered with Maire Tecnimont Group Procurement

Maire Tecnimont Group’s e-procurement programme is for open tenders through the introduction of the SAP Ariba sourcing platform.

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