Refining
Motiva's Port Arthur refinery reached 600,000 barrels a day in 2012, and the company describes its refinery as North America's largest. Motiva has been wholly owned by Saudi Aramco since 2017.
Port Arthur lies on the Sabine-Neches waterway in the Texas Golden Triangle and is centred on oil refining and petrochemicals. Zone 1 and Zone 21 areas arise at refinery process units, petrochemical plants and marine terminals. A rugged smartphone distributor in Port Arthur, Texas would carry the IS-04Z1 to these buyers once certification completes.
Pre-launch · certification in progress · Launching Q4 2026
Short answer. Port Arthur, Texas has no appointed SAMS distributor yet: the IS-04Z1 is pre-launch (certification in progress, no certificate issued, launch planned for Q4 2026), and distributor applications are open.
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 | Port Arthur, Texas: Tank farms, Marine terminals, Refinery process units | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Port Arthur. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
The companies on site and the hazardous-area types a handset is likely to meet there.
Motiva's Port Arthur refinery reached 600,000 barrels a day in 2012, and the company describes its refinery as North America's largest. Motiva has been wholly owned by Saudi Aramco since 2017.
Valero completed a petrochemical expansion in the city. Golden Pass LNG at nearby Sabine Pass, Texas, reported its first export cargo on 22 April 2026.
Port Arthur lies 90 miles east of Houston on the west side of Sabine Lake, with the Rainbow Bridge across the Neches River connecting it to Bridge City.
Port Arthur is tied with Lake Charles and Astoria as the most humid city in the contiguous United States, with relative humidity around 90 percent in the morning.
Motiva also runs the largest base oil plant in the Western Hemisphere, with a base oil capacity of 40,000 barrels a day supplied to customers in more than 15 countries.
The TotalEnergies refinery completed the largest turnaround in its history in 2023, which shows how large the periodic shutdown work is on these complexes.
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 Port Arthur, Texas. The Gulf Coast location is hot and humid with hurricane exposure, which shapes turnaround scheduling. Marine terminals add spray and wet decks. IP68 helps with water and dust ingress, but it is not explosion protection, which depends on the Ex marking still being certified for the IS-04Z1.
Distribution of the IS-04Z1 is by authorised partners only, and SAMS has not yet granted a territory for Port Arthur, Texas. Each application is reviewed on its merits. Because opening a certified Ex handset in an ordinary workshop invalidates its certificate, the partner must be able to support and service the device locally.
Not today. Until the certificates are issued the IS-04Z1 stays out of classified areas, and until launch there is nothing to purchase. You can ask for the datasheet and the certification schedule, or book a safe-area evaluation unit.
No price is published. While certification is in progress there is no list price and no committed lead time, and a supplier quoting a firm figure for an uncertified Ex handset is promising something it cannot stand behind. Indicative pre-launch pricing is issued in writing against a stated 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, petrochemical plants, tank farms, marine terminals. Which areas are classified, and to what zone, is set by the site operator's own area classification drawings.
Apply through the distributor page with your company details and the territory you cover. SAMS reviews applications company by company and has not yet granted a territory for Port Arthur, Texas.
Port Arthur is among the most humid places in the contiguous United States, with morning humidity near 90 percent. Condensation inside poorly sealed devices is a real risk, so choose sealed housings and follow the maker's care instructions.
Large refineries run planned turnarounds that bring thousands of contractors on site for a limited period. Operators typically plan equipment and induction well in advance, so contact the site's maintenance planners early and confirm approval requirements.
Port Arthur is hot and humid with hurricane exposure, which shapes turnaround scheduling. A rugged IP68 phone helps with water and dust, and managed enrolment lets a contractor lock or recover devices when a site closes. Store and charge devices in safe areas away from classified plant.
Related guides for Port Arthur and for United States.
Send the site, zone and gas group and roughly how many handsets. We reply by email with the datasheet and the certification schedule.
Name the site and the operator and we will send what is available before launch.