New capacity
Golden Pass at Sabine Pass, Texas, reported its first export cargo on 22 April 2026, and Cheniere reports substantial completion of its Corpus Christi Stage 3 project.
LNG developments sign long-term sales contracts, typically for 20 to 25 years, before investors commit, so sites operate for decades and equipment standards stay stable. Zone 1 and Zone 21 areas arise at liquefaction trains, storage tanks, loading arms and gas compression. If you are specifying an IECEx smartphone for US LNG export terminals, 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 US LNG export terminals: 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. An operator's own vendor approval is a separate step. Certification status. Place facts reviewed October 2026.
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Certificate of conformity | Number checkable on the IECEx online register | In progress; not issued |
| Standards edition | The IEC 60079 edition the certificate cites | Stated on the certificate when issued |
| Schedule of conditions | Limits of use, batteries and accessories | Published with the certificate |
| Where it applies | US LNG export terminals: Liquefaction trains, LNG storage tanks, Ship loading berths | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in US LNG Terminals. 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.
Golden Pass at Sabine Pass, Texas, reported its first export cargo on 22 April 2026, and Cheniere reports substantial completion of its Corpus Christi Stage 3 project.
The United States shipped 11.9 Bcf a day of LNG in 2024, with Louisiana's four terminals handling three-fifths. Cheniere reports 16 trains in operation across Sabine Pass and Corpus Christi.
Cheniere became the first US company to gain permission to export LNG, and its first exports came in 2016, after a long period in which terminals were designed for imports.
Cheniere's Corpus Christi site has net liquefaction capacity of 18 million tonnes a year and was reported running near its peak feed-gas rate, with expansion filed for four more trains.
In 2024 the United States had seven large LNG liquefaction export terminals with a combined capacity of about 88 million tonnes a year.
LNG is held at about minus 162 degrees Celsius and is not itself flammable; it must first vaporise and mix with air in a range of roughly 5 to 15 percent before it can burn.
IECEx is the international scheme for certifying equipment used in explosive atmospheres. A certificate of conformity is issued by an accredited certification body against a specific edition of the IEC 60079 standards and carries a schedule of conditions of safe use. It is not a legal requirement in most countries on its own, but many national schemes accept it as the technical basis.
The IECEx certificate for the IS-04Z1 is in progress and has not been issued. The marking target is Ex ib IIC T4, the intrinsic safety concept for Zone 1 gas with the hardest gas group (IIC) and a 135 °C temperature class.
In US LNG export terminals. Terminals such as Sabine Pass, Corpus Christi, Cameron, Calcasieu Pass, Freeport and Golden Pass involve global contractors and LNG carriers. IECEx gives these teams an international reference: a certificate of conformity with a schedule of conditions. SAMS holds no such certificate yet for the IS-04Z1.
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
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.
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.
No. The IECEx certificate is in progress and has not been issued. SAMS will publish the number when it exists.
Likely candidates are liquefaction trains, lng storage tanks, ship loading berths, gas compression and pipelines. 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.
Export terminals run continuously, with ships loading regularly and trains shut down only for planned maintenance. Teams visiting for service or inspection need to coordinate with operations and book access well ahead.
Several US LNG sites named in federal filings, including Sabine Pass, Cameron and Corpus Christi, are on the Gulf Coast, where storm season makes shutdown and evacuation planning normal. Keep spares and agree storm-season support arrangements with the operator.
Not automatically. Each terminal has its own classification drawings and approval process, so a marking accepted at one may need separate review at another. The IS-04Z1 target is II 2 G Ex ib IIC T4, and certification is in progress. Ask each operator what documents it expects.
Related guides for US LNG Terminals 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.
Tell us the zone, gas group and operator. We will send the datasheet and the certification schedule.