Large industrial base
The Sohar Aluminium smelter has a capacity of roughly 390,000 tonnes a year with its own power plant, so construction and maintenance contractors are present.
The port and free zone were planned around three industrial clusters, logistics, metals and petrochemicals, and a food cluster with an agro-bulk terminal was added later, giving mixed gas and dust hazards. Refining, metals and iron-ore processing are clustered there, which creates Zone 1 and Zone 21 work in process plants and bulk-liquid storage. If you are specifying a rugged mobile phone for Sohar, this page covers the markings, the approvals and the current certification status of the IS-04Z1.
Pre-launch · certification in progress · Launching Q4 2026
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Sohar: pre-launch, designed for Zone 1 and Zone 21 (marking target Ex ib IIC T4), with certification in progress and no certificate issued.
For the record, no certificate exists for the IS-04Z1 today. The programme is under way ahead of a Q4 2026 launch. A buyer's engineering review is separate from the certificate. Certification status. Place facts reviewed October 2026.
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Ingress protection | IP65 to IP68 sealing | IP68 design |
| Drop and shock | A stated drop height onto concrete | Specification on request |
| Explosion protection | A separate certificate and marking | In progress; not issued |
| Where it applies | Sohar: Refinery process units, Port liquid bulk handling, Fuel and chemical storage | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Sohar. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
A short profile of the site and the kinds of classified area that matter for portable equipment.
The Sohar Aluminium smelter has a capacity of roughly 390,000 tonnes a year with its own power plant, so construction and maintenance contractors are present.
Summers are very hot on this stretch of the Gulf of Oman coast, so handset heat tolerance matters for outdoor rounds.
Oman's Telecommunications Regulatory Authority follows EU-style type-approval procedures for radio equipment and issues a TRA label; a self-declaration route has also been introduced, so confirm the current path.
Sohar has a hot desert climate with very hot summers and mild winters; rain is scarce, with more than half the annual total falling in February, so summer heat is the main stress.
The port lies in Liwa wilaya, in the centre of Al Batinah North Governorate, on the Gulf of Oman side of the Strait of Hormuz, so ships reach it without passing through the strait.
Government development plans for Sohar include more than 5 billion US dollars of investment in the steel industry, which adds heavy-industry maintenance work to the port's chemical and fuel sites.
A rugged phone is built to survive water, dust, drops and rough handling, usually rated by an IP code and a drop specification. Ruggedness is an environmental property: it says nothing about whether a phone may be used where flammable gas or dust is present. That is decided by explosion-protection certification and marking.
The IS-04Z1 combines both: an IP68 sealed rugged build and a design for Zone 1 and Zone 21 (marking target Ex ib IIC T4). The explosion-protection certificates are in progress and none has been issued.
In Sohar. Summers are extremely hot, with a record of 50.8 C, and rainfall is low. IP68 is designed to resist dust and immersion, which helps with fine sand and washdown, but it does not provide explosion protection. Check temperature class and the permitted ambient range for outdoor shifts.
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
No. Nothing can be bought or taken into a classified area today: certification is in progress and launch is planned for Q4 2026. What is available now is the datasheet, the written certification schedule and evaluation units for safe-area use.
SAMS has not published a price. Any figure you are offered for an uncertified Ex phone should be treated with caution; written indicative pricing is available for a defined quantity and site.
It is designed to IP68 sealing, with glove-friendly controls. Ruggedness is not explosion protection: that depends on the certificates, which are in progress.
Likely candidates are refinery process units, port liquid bulk handling, fuel and chemical storage, industrial plant utilities. Which areas are classified, and to what zone, is set by the site operator's own area classification drawings.
Not exactly. Explosion proof is a broad everyday term; intrinsic safety is one protection concept, which limits energy so ignition cannot occur. Flameproof (Ex d) is a different concept that contains an explosion. The IS-04Z1 is intrinsically safe by design.
Summers are very hot there, so check the datasheet operating and charging temperature range, keep devices out of direct sun on jetties, and plan battery swaps for long shifts. Ask the plant operator whether it sets its own temperature limit for portable devices.
Sohar has road links towards the UAE, and the Hafeet Rail corridor is being built to join the port to the UAE network. For hazardous areas, border and site-access paperwork still sits with the client, so allow time for permits and inductions.
Each operator at the port runs its own supplier approval and permit system, so one approval does not cover all. Ask the refinery, port company or industrial plant what it requires for portable devices. Confirm with the operator.
More on Sohar, and on other places in Oman.
Share the site details and quantity. You will get the datasheet and the certification schedule back by email; pricing is indicative only until launch.
Tell us the zone, gas group and operator. We will send the datasheet and the certification schedule.