Port volumes
In 2025 the port handled about 127 million tons of crude oil and 62 million tons of petroleum products, according to the port's reported figures.
Corpus Christi is a Texas Gulf Coast port described as the largest US gateway for crude oil exports. Refineries and Cheniere's LNG liquefaction terminal create Class I Division 1 and Zone 1 areas at process units, LNG trains, storage and ship loading. If you are specifying an ATEX and IECEx smartphone for Corpus Christi, Texas, 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 Corpus Christi, Texas: pre-launch, designed for Zone 1 and Zone 21 (marking target Ex ib IIC T4), with certification in progress and no certificate issued.
Status: pre-launch. IECEx, ATEX, UKEX and NEC 500 certification is in progress and no certificate has been issued; launch is planned for Q4 2026. Operator approval runs on its own timeline. Certification status. Place facts reviewed October 2026.
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Marking | II 2 G Ex ib IIC T4 on the rating plate | Design target; not yet marked |
| EU-type examination certificate | Notified body number and certificate ID | In progress with TÜV; not issued |
| IECEx certificate of conformity | Number listed on the IECEx online register | In progress; not issued |
| Where it applies | Corpus Christi, Texas: Refinery process units, LNG liquefaction trains, LNG storage and loading | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Corpus Christi. 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.
In 2025 the port handled about 127 million tons of crude oil and 62 million tons of petroleum products, according to the port's reported figures.
Cheniere's Corpus Christi terminal produced first LNG from its Stage 3 expansion in December 2024, designed to add about 10 million tonnes a year.
Records show a city high temperature of 109 degrees Fahrenheit in September 2000, while winters are mild with January lows a little below 50 degrees, so heat matters more than cold for equipment.
Summers are hot and humid, June to September is the hottest period, and monthly rainfall peaks in September when the tropical storm and hurricane threat is greatest.
The Port of Corpus Christi is among the largest US ports by waterborne tonnage and is described as one of the country's leading energy export locations, mostly oil, agricultural products and general cargo.
The city has one of the highest average wind speeds of any coastal city in North America, which is why it is a wind-sports destination and why outdoor work is often wind-exposed.
ATEX is the European legal framework for equipment used in explosive atmospheres (Directive 2014/34/EU). IECEx is the international certification scheme built on the IEC 60079 standards. Buyers outside Europe often ask for both: an IECEx certificate is the technical evidence most national regimes build on, while ATEX is the legal route into the European market.
For the IS-04Z1 both routes are in progress with TÜV in Germany and neither certificate has been issued. The marking target is II 2 G Ex ib IIC T4: equipment Group II (surface industry), Category 2 (Zone 1 gas), protection concept ib (intrinsic safety), gas group IIC and temperature class T4.
In Corpus Christi, Texas. A reviewer at Corpus Christi would usually ask first for NEC-based Class and Division or Zone evidence. Cheniere's LNG terminal and the export-focused port work with international buyers, shippers and contractors who may carry ATEX or IECEx documents, which a dual route is designed to serve. Both are in progress for SAMS and none is issued.
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
Not yet. The IS-04Z1 is pre-launch and its certification is still in progress ahead of a Q4 2026 launch. No unit goes into a classified area before the certificate covering it exists. The datasheet, the certification schedule and safe-area evaluation units are available now.
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.
Not yet. Both routes are in progress with TÜV in Germany and no certificate has been issued. Any listing that says otherwise is wrong.
Likely candidates are refinery process units, lng liquefaction trains, lng storage and loading, crude and product marine terminals. 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.
Yes, the city has some of the highest average wind speeds of North American coastal cities. Wind mainly affects ergonomics, lanyards and dropped equipment on elevated work, so a secure lanyard point and a case you can hold firmly with gloves are worth checking.
Freight normally comes through a larger Texas gateway and by road; San Antonio is 130 miles away and Houston 208 miles. Agree delivery windows with the site, since refineries and terminals often limit gate hours and require advance notice for vendors.
The port handles large volumes of crude oil and petroleum products, Cheniere's LNG terminal produced first LNG from its Stage 3 expansion in December 2024, and Valero, CITGO and Flint Hills each operate a refinery. Figures come from encyclopaedic sources. Confirm requirements with the site operator.
Other guides for Corpus Christi, 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.
Send the zone and gas group of your site and we will reply with the datasheet and schedule.