Projects
A blue hydrogen facility is under construction, so project and contractor activity continues alongside operations.
The Baytown Refinery opened in 1919, has a capacity of 588,000 barrels per day, and is the city's largest employer and the fifth-largest refinery in the United States. ExxonMobil's complex there, founded in 1919, combines a refinery with chemical and ethylene units, and Chevron Phillips and Covestro also run large plants, so classified areas span process units, crackers and storage. A hazardous area smartphone distributor in Baytown, Texas (ExxonMobil Baytown complex) would carry the IS-04Z1 to these buyers once certification completes.
Pre-launch · certification in progress · Launching Q4 2026
Short answer. Baytown, Texas (ExxonMobil Baytown complex) 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.
Where things stand: the IS-04Z1 has not launched, and none of its four certification routes has produced a certificate yet. Operator approval runs on its own timeline. Certification status. Place facts reviewed October 2026.
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Zone | 0, 1 or 2 for gas; 20, 21 or 22 for dust | Designed for Zone 1 and Zone 21 |
| Gas group | IIA, IIB or IIC | IIC (target) |
| Area drawing | The operator's own classification drawing | Decided by the site operator |
| Where it applies | Baytown, Texas (ExxonMobil Baytown complex): Chemical plant units, Ship Channel storage and docks, Refinery process units | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Baytown Refinery. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
Who operates there and which kinds of classified area a handset would meet, from the SAMS site research.
A blue hydrogen facility is under construction, so project and contractor activity continues alongside operations.
The ExxonMobil refinery covers about 3,400 acres and is reported at 588,000 barrels of crude a day. It is the largest employer in the city.
The refinery has a Nelson Complexity Index of 13.7, indicating a highly complex configuration with many conversion units.
ExxonMobil has made a final investment decision on a reconfiguration project at Baytown to raise production of higher-demand products such as base stocks and diesel.
A 2 billion dollar expansion started two new chemical lines in 2023: 400,000 tonnes per year of performance polymers and 350,000 tonnes per year of linear alpha olefins.
The complex has a workforce of about 7,000 people, and the 2023 expansion supported over 3,500 construction jobs and 200 permanent roles.
A hazardous area is a place where flammable gas, vapour or combustible dust may be present. Standards divide these into zones: Zones 0, 1 and 2 for gas and vapour, and Zones 20, 21 and 22 for dust. Zone 1 and Zone 21 are the tier where an explosive atmosphere is likely to occur in normal operation, which is where the IS-04Z1 is designed to work. Anything carried in must be marked for the zone, gas group and temperature class of the area.
No certificate has been issued for the IS-04Z1 yet, so it must not be taken into a classified area until the certificate covering it exists and the site operator has accepted it.
In Baytown, Texas (ExxonMobil Baytown complex). Baytown has refinery process units, ethylene cracking units, chemical plant units and Ship Channel storage and docks. ExxonMobil, Chevron Phillips Chemical and Covestro each run large plants, and each operator classifies its own areas as Class I Division or Zone locations. SAMS does not classify any area.
SAMS is appointing authorised distributors ahead of the Q4 2026 launch. No territory has been granted for Baytown, Texas (ExxonMobil Baytown complex) yet and applications are reviewed company by company. Because a certified Ex device cannot be opened by an ordinary phone workshop without invalidating its certificate, SAMS looks for partners who can provide competent technical support and after-sales service locally.
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.
Zone 1 and Zone 21 (gas and dust) with gas group IIC and temperature class T4, subject to certification. It must not be used in a classified area before its certificate is issued and the site has accepted it.
Likely candidates are refinery process units, ethylene cracking units, chemical plant units, ship channel storage and docks. 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 Baytown, Texas (ExxonMobil Baytown complex).
The complex lies along the channel with marine access, plus road links to Houston about 25 miles away. Confirm shipping and customs arrangements for equipment.
US sites use NEC Class and Division and IEC Zone marking; confirm which the site accepts and the gas group, temperature class, and any contractor approval process.
A blue hydrogen facility is under construction, according to encyclopaedic text not checked with ExxonMobil, so project and contractor activity may continue alongside operations. Hydrogen could affect the gas group required. Ask the operator or its contractors for the marking and approval requirements for new areas.
Other guides for Baytown Refinery, other places in United States, and the pages behind them.
Share the site details and quantity. You will get the datasheet and the certification schedule back by email; pricing is indicative only until launch.
Name the site and the operator and we will send what is available before launch.