Thailand: logistics and access
Around 79.5% of crude oil supply is imported; domestic oil production peaked in 2016 at 486,000 barrels a day, so port, tank farm and pipeline terminals handle much of the flow.
A Zone 1 and Zone 21 handset for the people inside the Thai petrochemical cluster: shift operators on the Map Ta Phut crackers, reliability engineers at Sriracha, jetty and tank farm crews along the Rayong coast, and the safety and IT departments that rule on what passes a gate. This page explains what to look for in an ATEX and IECEx smartphone for Thailand, and where the IS-04Z1 stands against that list today.
Pre-launch · certification in progress · Launching Q4 2026
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Thailand: pre-launch, designed for Zone 1 and Zone 21 (marking target Ex ib IIC T4), with certification in progress and no certificate issued.
Current position: certification in progress, nothing issued, launch targeted for Q4 2026. 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 |
|---|---|---|
| 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 | Thailand: Map Ta Phut Industrial Estate, Rayong industrial estates, Sriracha, Chonburi | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Thailand. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
The classified areas, operators and sites below are the ones covered in the SAMS Thailand market guide.
Around 79.5% of crude oil supply is imported; domestic oil production peaked in 2016 at 486,000 barrels a day, so port, tank farm and pipeline terminals handle much of the flow.
Map Ta Phut in Rayong, opened in 1990 and run by the Industrial Estate Authority of Thailand, is the largest industrial estate in the country, with 151 factories including petrochemical plants and refineries across about 166 square kilometres.
The Erawan gas field in the Gulf of Thailand supplies about 20% of the country's gas production, which makes it an important reference point for offshore device and transport planning.
Gas supply is topped up with LNG imports and pipeline gas from Myanmar (6.2 and 7.8 billion cubic metres respectively in 2018), so LNG regasification and receiving stations are part of the hazardous-area picture.
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 Thailand. A Thai procurement or HSE reviewer at Map Ta Phut would expect IECEx evidence first, with the TISI and NBTC route running alongside, as the sheet describes. A dual ATEX and IECEx route also helps international EPCs and contractors working in the Eastern Economic Corridor. No certificate has been issued for the IS-04Z1 yet.
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.
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.
Not yet. Both routes are in progress with TÜV in Germany and no certificate has been issued. Any listing that says otherwise is wrong.
The market guide for Thailand covers Map Ta Phut Industrial Estate, Rayong industrial estates, Sriracha, Chonburi, Laem Chabang, among others. Site-level pages are linked below.
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, because tropical heat and humidity put stress on batteries and seals. Check the maximum ambient rating on the certificate, the water and dust ingress rating and how the device behaves in direct sun. Spare batteries are typically worthwhile on long outdoor shifts.
The Gulf of Thailand, with 34 active petroleum projects across 47 fields as of March 2024, including the Erawan field. Crew change and supply bases on the coast also hold classified areas. Confirm each platform's rules with its operator and helicopter or boat provider.
IP68 sealing and a rugged build are the design floor for heavy rain on open pipe racks and humid heat. The certificate ambient range is the compliance figure and is still in progress. Test a unit in the wet season and confirm the range with the site.
Other guides for Thailand, other places in Thailand, and the pages behind them.
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.